MAGNESIUM HYDROXIDE

CAS NO: 1309-42-8
EC NO: 215-170-3

Synonyms:
Nemalite; Milmag; Magnesia, [Milk of]; Magnesiamaito; Reachim; Versamag; Duhor; Magnesia Magma; Magmesia hydrate; Kyowamag F; Hydrofy N; Marinco H; Duhor N; Ebson RF; FloMag H; Hydro-mag MA; MagneClear 58; FloMag HUS; Kisuma 5; Combustrol 500; Haley's MO; Kisuma 4AF; Kisuma 5A; Kisuma 5B; Kisuma 5BG; Kisuma 5E; Mint-O-Mag, Baschem 12; Magnifin H 10; Kisuma 5B-N; Kisuma 78; Kisuma S 4; Alcanex NHC 25; Hydrofy G 1.5; Hydrofy G 2.5; Lycal 96 HSE; Mag Chem MH 10; Magnesium hydroxide gel; Marinco H 1241; Martinal VPF 8812; Magnesium(II) hydroxide; Phillips magnesia tablets; Star 200; Magnesium hydroxide slurry; Asahi Glass 200-06; Magnesium hydroxide [JAN]; Magnesium oxide (Mg(OH)2); CCRIS 3342; HSDB 659, KX 8S(A); KX 8S(B); Ki 22-5B; Magnesium hydroxide (Mg(OH)2); Phillips milk of magnesia liquid; DSB 100; EINECS 215-170-3; DP 393; S/G 84; 200-06H; MFCD00011104; Hydrofy G 1.0; H2MgO2; Milmag (TN); Mint-o-mag (TN); M5421_SIGMA; Magnesia, (Milk of) (USP); 632309_ALDRICH; C16H17KN2O4S; Magnesium hydroxide (JAN/USP); Magnesium hydroxide [USP:JAN]; 63081_FLUKA; MolPort-003-929-820; LTBB002614; 310093_SIAL; Magnesium Hydroxide Powder, 99% Nano; 1317-43-7; LS-88597; MAGNESIUM ION, 2 WATERS COORDINATED; FT-0693469; D00731; I14-18067; I14-41432; 13760-51-5; 1395893-88-5; magnezium hydroxide; magnesium hydroxide; magnesium hidroksit; magnezyum hidroksit; magnezyum hydroxide; magnezium hydroksit; MAGNEZYUM HİDROKSİT;Magnesia 5OH, Magnesium dihydroxide, Magnesium (II) hydroxide, Magnifin A, Magnifin H 10, Milk of magnesia, Magnesia magma, Magnesium hydrate; magneziyum hidroksit;  magneziyum hidro oksit; Lait de magnésie; lait de magnésium
(suspension aqueuse); magnésie hydratée; hydrate de magnésie; magnésie caustique

MAGNESIUM HYDROXIDE

CAS : 1309-42-8

Magnesium hydroxide

Names
IUPAC name
Magnesium hydroxide
Other names
Magnesium dihydroxide
Milk of magnesia
Identifiers
CAS Number    
1309-42-8 check
3D model (JSmol)    
Interactive image
ChEBI    
CHEBI:6637 check
ChEMBL    
ChEMBL1200718 ☒
ChemSpider    
14107 check
ECHA InfoCard    100.013.792 Edit this at Wikidata
EC Number    
215-170-3
E number    E528 (acidity regulators, ...)
Gmelin Reference    485572
PubChem CID    
14791
RTECS number    
OM3570000
UNII    
NBZ3QY004S check
CompTox Dashboard (EPA)    
DTXSID4049662
InChI[show]
SMILES[show]
Properties
Chemical formula    Mg(OH)2
Molar mass    58.3197 g/mol
Appearance    White solid
Odor    Odorless
Density    2.3446 g/cm3
Melting point    350 °C (662 °F; 623 K) decomposes
Solubility in water    
0.00064 g/100 mL (25 °C)
0.004 g/100 mL (100 °C)
Solubility product (Ksp)    5.61×10−12
Magnetic susceptibility (χ)    −22.1·10−6 cm3/mol
Refractive index (nD)    1.559[1]
Structure
Crystal structure    Hexagonal, hP3[2]
Space group    P3m1 No. 164
Lattice constant    
a = 0.312 nm, c = 0.473 nm
Thermochemistry
Heat capacity (C)    77.03 J/mol·K
Std molar
entropy (So298)    64 J·mol−1·K−1[3]
Std enthalpy of
formation (ΔfH⦵298)    −924.7 kJ·mol−1[3]
Gibbs free energy (ΔfG˚)    −833.7 kJ/mol
Pharmacology
ATC code    A02AA04 (WHO) G04BX01 (WHO)
Hazards
Safety data sheet    External MSDS
GHS pictograms    GHS07: Harmful[4]
GHS Signal word    Warning[4]
GHS hazard statements    H315, H319, H335[4]
GHS precautionary statements    P261, P280, P305+351+338, P304+340, P405, P501[4]
NFPA 704 (fire diamond)    
NFPA 704 four-colored diamond
010
Flash point    Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)    8500 mg/kg (rat, oral)
Related compounds
Other anions    Magnesium oxide
Other cations    
Beryllium hydroxide
Calcium hydroxide
Strontium hydroxide
Barium hydroxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒ verify (what is check☒ ?)
Infobox references
Magnesium hydroxide is the inorganic compound with the chemical formula Mg(OH)2. It occurs in nature as the mineral brucite. It is a white solid with low solubility in water (Ksp = 5.61×10−12).[5] Magnesium hydroxide is a common component of antacids, such as milk of magnesia, as well as laxatives.

Preparation
Combining a solution of many magnesium salts with alkaline water induces precipitation of solid Mg(OH)2:

Mg2+ + 2 OH− → Mg(OH)2
On a commercial scale, Mg(OH)2 is produced by treating seawater with lime (Ca(OH)2). 600 m3 (158,503 US gallons) of seawater gives about one ton of Mg(OH)2. Ca(OH)2 is far more soluble than Mg(OH)2, so the latter precipitates as a solid:[6]

{displaystyle {ce {MgO + H2O -> Mg(OH)2}}}{displaystyle {ce {MgO + H2O -> Mg(OH)2}}}
Uses
Precursor to MgO
Most Mg(OH)2 that is produced industrially, as well as the small amount that is mined, is converted to fused magnesia (MgO). Magnesia is valuable because it is both a poor electrical conductor and an excellent thermal conductor.[6]

Health
Metabolism
Magnesium hydroxide is used in suspension as either an antacid or a laxative, depending on concentration.

As an antacid, magnesium hydroxide is dosed at approximately 0.5–1.5 g in adults and works by simple neutralization, where the hydroxide ions from the Mg(OH)2 combine with acidic H+ ions produced in the form of hydrochloric acid by parietal cells in the stomach to produce water.

As a laxative, magnesium hydroxide is dosed at 2–5 g, and works in a number of ways. First, Mg2+ is poorly absorbed from the intestinal tract, so it draws water from the surrounding tissue by osmosis. Not only does this increase in water content soften the feces, it also increases the volume of feces in the intestine (intraluminal volume) which naturally stimulates intestinal motility. Furthermore, Mg2+ ions cause the release of cholecystokinin (CCK), which results in intraluminal accumulation of water, electrolytes, and increased intestinal motility. Some sources claim that the hydroxide ions themselves do not play a significant role in the laxative effects of milk of magnesia, as basic solutions (i.e., solutions of hydroxide ions) are not strongly laxative, and non-basic Mg2+ solutions, like MgSO4, are equally strong laxatives, mole for mole.[7]

Only a small amount of the magnesium from magnesium hydroxide is usually absorbed by the intestine (unless one is deficient in magnesium). However, magnesium is mainly excreted by the kidneys so long-term, daily consumption of milk of magnesia by someone suffering from kidney failure could lead in theory to hypermagnesemia. Unabsorbed drug is excreted in feces; absorbed drug is excreted rapidly in urine.[8]

Bottle of Phillips' Milk of Magnesia in the Amber Museum, Santo Domingo, Dominican Republic
History of milk of magnesia
On May 4, 1818, American inventor John Callen received a patent (No. X2952) for magnesium hydroxide.[9] In 1829, Sir James Murray used a "condensed solution of fluid magnesia" preparation of his own design[10] to treat the Lord Lieutenant of Ireland, the Marquis of Anglesey, of stomach pain. This was so successful (advertised in Australia and approved by the Royal College of Surgeons in 1838)[11] that he was appointed resident physician to Anglesey and two subsequent Lords Lieutenant, and knighted. His fluid magnesia product was patented two years after his death in 1873.[12]

The term milk of magnesia was first used by Charles Henry Phillips in 1872 for a suspension of magnesium hydroxide formulated at about 8%w/v.[13] It was sold under the brand name Phillips' Milk of Magnesia for medicinal usage.

Although the name may at some point have been owned by GlaxoSmithKline, USPTO registrations show "Milk of Magnesia"[14] and "Phillips' Milk of Magnesia"[15] have both been assigned to Bayer since 1995. In the UK, the non-brand (generic) name of "Milk of Magnesia" and "Phillips' Milk of Magnesia" is "Cream of Magnesia" (Magnesium Hydroxide Mixture, BP).

It was used in Steven Spielberg's first short movie called Amblin'.

As food additive
It is added directly to human food, and is affirmed as generally recognized as safe by the FDA.[16] It is known as E number E528.

Magnesium hydroxide is marketed for medical use as chewable tablets, as capsules, powder, and as liquid suspensions, sometimes flavored. These products are sold as antacids to neutralize stomach acid and relieve indigestion and heartburn. It also is a laxative to alleviate constipation. As a laxative, the osmotic force of the magnesia acts to draw fluids from the body. High doses can lead to diarrhea, and can deplete the body's supply of potassium, sometimes leading to muscle cramps.[17]

Some magnesium hydroxide products sold for antacid use (such as Maalox) are formulated to minimize unwanted laxative effects through the inclusion of aluminum hydroxide, which inhibits the contractions of smooth muscle cells in the gastrointestinal tract,[18] thereby counterbalancing the contractions induced by the osmotic effects of the magnesium hydroxide.

Other niche uses
Magnesium hydroxide is also a component of antiperspirant.[19] Magnesium hydroxide is useful against canker sores (aphthous ulcer) when used topically.[20]

Waste water treatment
Magnesium hydroxide powder is used industrially to neutralize acidic wastewaters.[21] It is also a component of the Biorock method of building artificial reefs.

Fire retardant
Natural magnesium hydroxide (brucite) is used commercially as a fire retardant. Most industrially used magnesium hydroxide is produced synthetically.[22] Like aluminium hydroxide, solid magnesium hydroxide has smoke suppressing and flame retardant properties. This property is attributable to the endothermic decomposition it undergoes at 332 °C (630 °F):

Mg(OH)2 → MgO + H2O
The heat absorbed by the reaction retards the fire by delaying ignition of the associated substance. The water released dilutes combustible gases. Common uses of magnesium hydroxide as a flame retardant include additives to cable insulation (i.e. cables for high quality cars, submarines, the Airbus A380, Bugatti Veyron and the PlayStation 4, PlayStation 2, etc.), insulation plastics, roofing (e.g. London Olympic Stadium), and various flame retardant coatings. Other mineral mixtures that are used in similar fire retardant applications are natural mixtures of huntite and hydromagnesite.[23][24][25][26][27]

Mineralogy

Brucite crystals (mineral form of Mg(OH)2) from the Sverdlovsk Region, Urals, Russia (size: 10.5 × 7.8 × 7.4 cm).
Brucite, the mineral form of Mg(OH)2 commonly found in nature also occurs in the 1:2:1 clay minerals amongst others, in chlorite, in which it occupies the interlayer position normally filled by monovalent and divalent cations such as Na+, K+, Mg2+ and Ca2+. As a consequence, chlorite interlayers are cemented by brucite and cannot swell nor shrink.

Brucite, in which some of the Mg2+ cations have been substituted by Al3+ cations, becomes positively charged and constitutes the main basis of layered double hydroxide (LDH). LDH minerals as hydrotalcite are powerful anion sorbents but are relatively rare in nature.

Brucite may also crystallise in cement and concrete in contact with seawater. Indeed, the Mg2+ cation is the second most abundant cation in seawater, just behind Na+ and before Ca2+. Because brucite is a swelling mineral, it causes a local volumetric expansion responsible for tensile stress in concrete. This leads to the formation of cracks and fissures in concrete, accelerating its degradation in seawater.

For the same reason, dolomite cannot be used as construction aggregate for making concrete. The reaction of magnesium carbonate with the free alkali hydroxides present in the cement porewater also leads to the formation of expansive brucite.

MgCO3 + 2 NaOH → Mg(OH)2 + Na2CO3
This reaction, one of the two main alkali–aggregate reaction (AAR) is also known as alkali–carbonate reaction.

Why is this medication prescribed?
Magnesium hydroxide is used to treat occasional constipation in children and adults on a short-term basis. Magnesium hydroxide is in a class of medications called saline laxatives. It works by causing water to be retained with the stool. This increases the number of bowel movements and softens the stool so it is easier to pass.

How should this medicine be used?
Magnesium hydroxide come as a chewable tablet, tablet, and a suspension (liquid) to take by mouth. It usually is taken as a single daily dose (preferably at bedtime) or you may divide the dose into two or more parts over one day. Magnesium hydroxide usually causes a bowel movement within 30 minutes to 6 hours after taking it. Follow the directions on the package or on your product label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take magnesium hydroxide exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

If you are giving magnesium hydroxide to your child, read the package label carefully to make sure that it is the right product for the age of the child. Do not give children magnesium hydroxide products that are made for adults. Check the package label to find out how much medication the child needs. Ask your child's doctor if you don't know how much medication to give your child.

Take the suspension, chewable tablets, and tablets with a full glass (8 ounces [240 milliliters]) of liquid.

Do not take magnesium hydroxide for longer than 1 week without talking to your doctor.

Shake the oral suspension well before each use.

Other uses for this medicine
Magnesium hydroxide is also used as an antacid with other medications to relieve heartburn, acid indigestion, and upset stomach.

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?
Before taking magnesium hydroxide,
tell your doctor and pharmacist if you are allergic to magnesium hydroxide, any other medications, or any of the ingredients in magnesium hydroxide preparations. Ask your pharmacist or check the product label for a list of the ingredients.
tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
if you are taking other medications, take them at least 2 hours before or 2 hours after taking magnesium hydroxide.
tell your doctor if you have stomach pain, nausea, vomiting, or a sudden change of bowel habits lasting more than 2 weeks. Also, tell your doctor if you have or have ever had kidney disease.
tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking magnesium hydroxide, call your doctor.
What should I do if I forget a dose?
Tell your doctor if you are on a magnesium-restricted diet before taking magnesium hydroxide. Unless your doctor tells you otherwise, continue your normal diet.

What side effects can this medication cause?
Magnesium hydroxide may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
loose, watery, or more frequent stools
Some side effects can be serious. If you experience any of these symptoms, stop taking magnesium hydroxide and call your doctor immediately:
blood in stool
unable to have a bowel movement 6 hours after use
Magnesium hydroxide may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).

What should I know about storage and disposal of this medication?
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Do not freeze the suspension.

It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. http://www.upandaway.org

Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website  for more information if you do not have access to a take-back program.

What other information should I know?
Ask your pharmacist any questions you have about magnesium hydroxide.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

What is magnesium hydroxide?
Magnesium is a naturally occurring mineral. Magnesium hydroxide reduces stomach acid, and increases water in the intestines which may induce bowel movements.

Magnesium hydroxide is used as a laxative to relieve occasional constipation.

Magnesium hydroxide is also used as an antacid to relieve indigestion, sour stomach, and heartburn.

Magnesium hydroxide may also be used for purposes not listed in this medication guide.

Important Information
Do not use magnesium hydroxide without a doctor's advice if you have stomach pain, nausea, or vomiting.

Before taking this medicine
Do not use magnesium hydroxide without a doctor's advice if you have stomach pain, nausea, or vomiting.

Ask a doctor or pharmacist if magnesium hydroxide is safe to use if:

you have kidney disease;

you are on a low-magnesium diet; or

you have a sudden change in bowel habits that has been ongoing for longer than 2 weeks.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

How should I take magnesium hydroxide?
Use exactly as directed on the label, or as prescribed by your doctor.

Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).

You may need to shake the oral suspension before each use.

You must chew the chewable tablet before you swallow it.

Take this medicine with a full glass (8 ounces) of water.

When taken as a laxative, magnesium hydroxide should produce a bowel movement within 30 minutes to 6 hours.

Call your doctor if the condition you are treating with magnesium hydroxide does not improve, or if it gets worse while using this medicine.

Do not use magnesium hydroxide for longer than 7 days without medical advice.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?
Since magnesium hydroxide is used when needed, you may not be on a dosing schedule. Skip any missed dose if it's almost time for your next dose. Do not use two doses at one time.

What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include severe diarrhea, muscle weakness, shortness of breath, and little or no urination.

What should I avoid while taking magnesium hydroxide?
Follow your doctor's instructions about any restrictions on food, beverages, or activity.

Magnesium hydroxide side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using magnesium hydroxide and call your doctor at once if you have:

severe nausea, vomiting, or diarrhea;

no bowel movement after using the medicine as a laxative;

rectal bleeding; or

worsening symptoms.

Common side effects may include:

diarrhea; or

a decreased sense of taste.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also:
Magnesium hydroxide side effects (in more detail)

What other drugs will affect magnesium hydroxide?
Other drugs may affect magnesium hydroxide, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.

Magnesium hydroxide is the compound of the formula Mg (OH) 2. It occurs in nature as the mineral brucite. It is a white solid with low solubility in water (Ksp = 5.61 × 10-12, Magnesium hydroxide is a common component of antacids, such as milk of magnesia, as well as laxatives.

Magnesium hydroxide is used for:
Treating acid indigestion, heartburn, sour stomach, and constipation. It may also be used for other conditions as determined by your doctor.

Magnesium hydroxide is an antacid. It works by neutralizing the acid in the stomach and by stimulating the bowels to move.

Do NOT use magnesium hydroxide if:
You are allergic to any ingredient in magnesium hydroxide
Contact your doctor or health care provider right away if any of these apply to you.

Before using magnesium hydroxide:
Some medical conditions may interact with magnesium hydroxide. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

If you are pregnant, planning to become pregnant, or are breast-feeding
If you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
If you have allergies to medicines, foods, or other substances
If you have appendicitis, stomach pain, a blockage of your bowels, nausea, vomiting, diarrhea, kidney problems, rectal bleeding of unknown cause, or if you have had bowel surgery
Some MEDICINES MAY INTERACT with magnesium hydroxide. Tell your health care provider if you are taking any other medicines, especially any of the following:

Anticoagulants (eg, warfarin) due to their side effects may be increased by magnesium hydroxide
(Eg, ketoconazole), bisphosphonates (eg, alendronate), cation exchange resins (eg sodium polystyrene sulfonate), cephalosporins (eg cephalexin), mycophenolate, penicillamine, quinolone antibiotics (eg, ciprofloxacin) Doxycycline) because of its effectiveness may be decreased by magnesium hydroxide
This may not be a complete list of all interactions that may occur. Ask your health care provider if magnesium hydroxide may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

How to use magnesium hydroxide:
Use magnesium hydroxide as directed by your doctor. Check the label on the medicine for exact dosing instructions.

Take magnesium hydroxide by mouth with or without food. Follow with a full glass (8 oz / 240 mL) of water or other liquid.
If you miss a dose of magnesium hydroxide, take it as soon as you remember. Continue to take it as directed by your doctor or on the package label.
Ask your health care provider for any questions you may have about magnesium hydroxide.

What is Magnesium Hydroxide?
When our bodies are functioning properly, we have no problem going 'number 1' and 'number 2.' However, when something becomes abnormal, we may have trouble with out bodily functions. Not being able to defecate is known as constipation, and there are certain medications known to this problem. Magnesium hydroxide is one chemical formula known to help reverse the symptoms of constipation. It works by drawing water into the intestines, creating more lubrication in the gut.

Magnesium Hydroxide Uses
As mentioned, magnesium hydroxide is often used as a laxative to relieve constipation. Since it works as a natural antacid, magnesium hydroxide is also used to treat gastrointestinal ailments such as heartburn, general upset stomach, or feelings of indigestion. Sometimes magnesium hydroxide is called milk of magnesia. It is usually taken orally, either in pill or liquid form. Generally, it is not taken for longer than a week. Patients are advised to talk to their doctors if symptoms do not improve in that time, as chronic constipation may be a sign of an underlying condition. It is very important to follow the dosage instructions and to take more or less recommended, as it can lead to dehydration, an imbalance in the body's natural store of minerals and other dangerous side effects taken in excess.
The largest industrial application of Mg (OH) 2 is flame retardants for such articles as roofing, isolation materials, plastic articles and coatings. The mechanism of flame retardancy is based on the endothermic decomposition of the material into MgO and H2O. This reaction adsorbs heat, which delays ignition of the associated substance. The water is released in the form of combustible gases and inhibits oxygen from aiding the combustion. Other known applications of Mg (OH) 2 include food additives, where the material is used as acidity regulator, and precursor for other magnesium materials, most notably MgO.

Benefits

You can also use magnesium hydroxide to empty your bowels and to treat conditions in which stomach acid enters your esophagus. Additionally, magnesium hydroxide can alleviate symptoms of indigestion and treat incomplete or infrequent bowel movements. On your skin, you can use magnesium hydroxide to treat canker sores and to prevent excess oil buildup that causes pimples to form. Further, magnesium hydroxide can decrease the size of your facial pores and prevent dirt from clogging in your pores.

Molecular Weight of magnesium hydroxide:    58.32 g/mol    Computed by PubChem 2.1 (PubChem release 2019.06.18)
Hydrogen Bond Donor Count of magnesium hydroxide:2    Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18)
Hydrogen Bond Acceptor Count of magnesium hydroxide:    2    Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18)
Rotatable Bond Count of magnesium hydroxide:    0    Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18)
Exact Mass of magnesium hydroxide:    57.990521 g/mol    Computed by PubChem 2.1 (PubChem release 2019.06.18)
Monoisotopic Mass of magnesium hydroxide:    57.990521 g/mol    Computed by PubChem 2.1 (PubChem release 2019.06.18)
Topological Polar Surface Area of magnesium hydroxide:    2 Ų    Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18)
Heavy Atom Count of magnesium hydroxide:    3    Computed by PubChem
Formal Charge of magnesium hydroxide:    0    Computed by PubChem
Complexity of magnesium hydroxide:    0    Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18)
Isotope Atom Count of magnesium hydroxide:    0    Computed by PubChem
Defined Atom Stereocenter Count of magnesium hydroxide:    0    Computed by PubChem
Undefined Atom Stereocenter Count of magnesium hydroxide:    0    Computed by PubChem
Defined Bond Stereocenter Count of magnesium hydroxide:    0    Computed by PubChem
Undefined Bond Stereocenter Count of magnesium hydroxide:    0    Computed by PubChem
Covalently-Bonded Unit Count of magnesium hydroxide:    3    Computed by PubChem
Compound  of magnesium hydroxide Is Canonicalized    Yes