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Sulfamic acid = amidosulfonic acid
CAS NUMBER: 5329-14-6
EC: 226-218-8
MF: H3NO3S
Sulfamic acid, also known as amidosulfonic acid, is a molecular compound with the formula H3NSO3.
Sulfamic acid is colourless, water-soluble compound finds many applications.
Sulfamic acid melts at 205 °C before decomposing at higher temperatures to water, sulfur trioxide, sulfur dioxide and nitrogen.
Sulfamic acid is produced industrially by treating urea with a mixture of sulfur trioxide and sulfuric acid (or oleum).
Sulfamic acid is well described by the formula H3NSO3, not the tautomer H2NSO2(OH). T
he relevant bond distances are 1.44 Å for the S=O and 1.77 Å for the S–N.
The greater length of the S–N is consistent with a single bond.
Furthermore, a neutron diffraction study located the hydrogen atoms, all three of which are 1.03 Å distant from the nitrogen.
In the solid state, the molecule of sulfamic acid is well described by a zwitterionic form.
Sulfamic acid is soluble in water and formamide and slightly soluble in methanol, ether, acetone and concentrated sulphuric acid.
Sulfamic acid is classified as a strong inorganic acid and is commercially produced from urea and fuming sulphuric acid.
At room temperature, dilute aqueous sulphamic acid solution is stable for a long time but rapid hydrolysis occurs at elevated temperatures.
Sulfamic acid's solution is less corrosive toward metals than other mineral acids like hydrochloric acid.
Sulfamic acid possesses a scale solubilising capacity which makes Sulfamic acid ideal for removal of scale from boilers, cooling towers, coils, heat exchangers, condensers and a wide range of heating and cooling systems thereby increasing the efficiency of plant and equipment.
Sulphamic acid is used as an acidic cleaning agent, typically for metals and ceramics.
Sulfamic acid is a replacement for hydrochloric acid for the removal of rust.
In households, Sulfamic acid is often found as a descaling agent in detergents, cleaners and toilet cleaners for the removal of limescale.
Sulfamic Acid is super efficient descaling agent and is used for cleaning a variety of industrial equipment and domestic appliances.
Sulfamic acid is used in the production of rust remover and lime remover.
Sulfamic acid is included in tablets used to clean dentures.
Sulfamic acid is used as a chlorine stabilizer in the paper industry.
Sulfamic acid is used in agricultural medicine.
Sulfamic acid is used in the production of fireproof paper and salts.
Sulfamic acid is most commonly found in cleaning agents used to clean surfaces such as metals and ceramics.
Sulfamic acid is used in the production of lime and rust remover.
Sulfamic acid is also found in tablets used to clean dentures.
Sulfamic acid is used in making dyestuffs and pigments.
Sulfamic acid is used as a chlorine stabilizer in the paper industry.
Sulfamic acid is used in agricultural medicine.
One of their most well-known applications is their use in synthesizing sweetening compounds.
Sulfamic acid also finds applications in the industrial cleaning of dairy and brewhouse equipment.
Although Sulfamic acid is considered less corrosive than hydrochloric acid, corrosion inhibitors are often added to the commercial cleansers of which Sulfamic acid is a component.
Sulfamic acid can be used for descaling home coffee and espresso machines and in denture cleaners.
Sulfamic acid is a cleaning agent on its own, and can also be found as a compound in various cleaning products.
Sulfamic acid is best suited to use on metals and ceramics.
Sulfamic acid is also used to remove rust and lime scale for pH control, cleaning and polishing stainless steel and other metals.
Sulfamic acid is safe to use as a cleaning agent in food processing plants such as breweries and dairy factories.
Sulfamic acid is safe to use in septic systems.
Sulfamic Acid is a white, crystalline solid.
Sulfamic acid is soluble in water and slightly soluble in organic solvents.
Sulfamic Acid is used in metal and ceramic cleaning, organic synthesis, paper and textiles, for pH control, as a hard-water scale remover, in electroplating, pharmaceuticals, and some agricultural products.
Sulfamic acid is safe to use on hard surfaces such as shower screens, tiles, taps, sinks, toilets, baths, spas, and benchtops made from acrylic, chrome, stainless steel, ceramics, and fibreglass, that are found in bathrooms, kitchens, and laundries.
Sulfamic acid must not be used on marble surfaces.
Sulfamic acid holds a scale solubilizing ability, which makes it perfect for removal of scale from equipment, thus increasing the effectiveness of plant and equipment.
Sulfamic acid is less corrosive as compared to hydrochloric acid.
Corrosion inhibitors are added to cleansers used in cleaning equipment, of which sulfamic acid is one of them.
Sulphamic acid is a molecular compound. This colorless, water-soluble compound has many applications.
Sulfamic Acid is produced industrially by treating urea with a mixture of Sulfur Trioxide and Sulphuric Acid.
Sulfamic acid is readily available as solid acidic descaling agent, sold in many hardware stores.
Sometimes Sulfamic acid's sold as coffee machine cleaning powder, though always read the label, as many have producers have replaced it with citric acid.
Sulfamic acid can be used as a metal cleaner and descaling agent for dairy or brewery equipment.
Sulfamic acid is also used for pH and corrosion control and as a sulfonating agent.
Additional areas of use include a stabilizer for swimming pool chemicals, pulp & paper applications, and oil & gas applications.
Sulfamic Acid is also known as Sulphamic Acid, Amidosulfonic acid, Amidosulfuric acid, Minosulfonic acid, or Sulfamidic acid.
This acid is used in households as a descaling agent in toilet cleaners and the removal of limescale on floor surfaces.
Sulfamic acid is the most preferably used as compared to hydrochloric acid for its intrinsic safety.
Sulfamic acid does not form chlorine gas when mixed with hypo chloride-based products such as bleach, as other common acids would do.
Reaction with bleach neutralizes the solution, making it effective and safe for household use.
Sulfamic acid is a molecular compound with the formula H3NSO3.
Sulfamic acid is a dry, non-volatile, non-hygroscopic, stable solid.
Sulfamic acid is soluble in water and forms a strongly acidic aqueous solution that is comparable in acidity to the common strong mineral acids, but Sulfamic acid can be safely handled and stored in the dry form.
The main reason why Sulfamic Acids is used in oil and gas drilling is to reduce the pH of used extraction fluids and compounds prior to the disposal of these fluids.
The benefits of using Sulphamic Acid is its ease of handling, solubility and low corrosiveness.
Sulfamic acid can also be used as an acidic cleaning agent, sometimes on its own or mixed with other products, typically for metals and ceramics.
Sulfamic acid is frequently used for removing rust and limescale.
Sulfamic acid is used for the stabilization of chlorine in swimming pools and cooling towers.
The sulfamic acid helps the chlorine in the pool remain for longer making it more useful.
Stabilized chlorine helps in saving cost that could have been incurred in purchasing more chlorine and makes caring for water easier and less time-consuming.
Sulfamic acid is produced industrially by treating urea with a mixture of sulfur trioxide and sulfuric acid (or oleum).
Sulfamic acid melts at 205 °C before decomposing at higher temperatures to water, sulfur trioxide, sulfur dioxide and nitrogen.
Sulphamic Acid should always be added to water, never add water to sulfamic acid.
At room temperature, diluted aqueous Sulphamic Acid is stable for a long period of time but hydrolysis occurs at elevated temperatures.
Sulfamic acid is an odorless, colorless, water-soluble and non-volatile chemical compound with the chemical formula H3NO3S.
Sulfamic acid is hygroscopic and non-volatile. Sulfamic acid solutions are less corrosive to metals than other mineral acids.
Aqueous solutions are stable at room temperature, but rapid hydrolysis occurs with increasing temperature.
Sulfamic acid is a very strong acid.
Sulfamic acid's strength is comparable to hydrochloric acid and nitric acid.
Sulfamic acid dissolves in water 21.5 g/100 g at 20 oC.
Concentrated sulfamic acid can be corrosive and can cause burns on the skin when it is not properly handled.
Sulfamic acid is unique because it not only causes chemical burns, but also secondary thermal burns as a result of dehydration.
Sulfamic acid is vital to use proper PPE such as Rubber gloves, full clothing, rubber apron, and eye and face protection when mixing to avoid contact with unprotected skin.
Contaminated clothing should be washed before being used again.
- Sulfamic acid is a stronger weak acid than both acetic and formic.
- Solid, crystalline powder which dissolves easily in water.
- A powder with melting point of 205°C.
- Non hydroscopic.
- Very stable and easy to transport.
- Less toxic
- Good history of use, common in domestic and industrial cleaning products designed to remove scale deposits.
Sulfamic Acid is super efficient descaling agent and is used for cleaning a variety of industrial equipment and domestic appliances.
Sulfamic acid is used for cleaning boilers, heat exchangers, condensers, jackets and coils, descaling toilets, removing excess grout on tiles, efflorescence and other mineral deposits etc.
Sulfamic Acid removes excess of nitrides used in the diazotization reactions in the manufacturing of dye stuffs and pigments.
Nitrides if present in process water of effluents can also be removed by using Sulphamic Acid.
Sulfamic acid is a safe and powerful acid, which is suitable for descaling applications and acid cleaning.
One of the most common use of sulfamic acid is for descaling heating coils and heated vessels in the food handling premises owing to its ability to quickly dissolve hardness deposits without objectionable odors or fumes.
Hence, sulfamic acid is considered as the most popular, safe, preferred acid in various industries.
Sulphamic acid also called sulfamic acid is a white crystalline solid which is stable and non-hygroscopic.
Sulfamic acid is soluble in water and formamide and slightly soluble in methanol, ether, acetone and concentrated sulphuric acid.
Sulfamic acid is classified as a strong inorganic acid and is commercially produced from urea and fuming sulphuric acid.
At room temperature, dilute aqueous sulphamic acid solution is stable for a long time but rapid hydrolysis occurs at elevated temperatures.
Sulfamic acid's solution is less corrosive toward metals than other mineral acids like hydrochloric acid.
Sulfamic acid possesses a scale solubilising capacity which makes it ideal for removal of scale from boilers, cooling towers, coils, heat exchangers, condensers and a wide range of heating and cooling systems thereby increasing the efficiency of plant and equipment.
Sulphamic acid is used as an acidic cleaning agent, typically for metals and ceramics.
Sulfamic acid is a replacement for hydrochloric acid for the removal of rust.
In households, Sulfamic acid is often found as a descaling agent in detergents, cleaners and toilet cleaners for the removal of limescale.
Sulfamic acid (amidosulfuric acid) is a monobasic, inorganic, dry acid, the monoamide of sulfuric acid, produced in crystalline form.
The acid is highly stable at room temperature. Aqueous solutions are ranked as strong acids similar to hydrochloric acid and sulfuric acid.
Sulfamic acid is available in dry form, permitting a convenient packing and handling operation.
Sulfamic acid is used in chemical cleaning, sulfonation reactions, removal of nitrite, as a chlorine vehicle, and for a variety of other applications.
Sulfamic acid is also used as a raw material of sodium cyclohexylsulfamate, which is a synthetic sweetener.
Some sulfamates are also commercially available.
Sulfamic acid is a white crystalline solid which is non-hygroscopic and stable.
Sulfamic acid is a super-efficient agent for descaling.
Sulfamic acid is used for cleaning a number of domestic appliances and industrial equipment.
Sulfamic acid is used as an acidic cleaning agent, usually for ceramics and metals.
Sulfamic acid is a safe and powerful acid, which is suitable for descaling applications and acid cleaning.
Sulfamic acid also called as amido sulfuric acid is a white crystalline solid which is non-hygroscopic and stable.
Sulfamic acid is soluble in formamide and water, and slightly soluble in concentrated sulfuric acid, methanol, acetone, and ether.
Sulfamic acid is commercially produced from fuming sulfuric acid and urea, and classified as a strong inorganic acid.
The sulfamic acid with dilute aqueous solution is stable for longer periods at room temperature.
However, a rapid hydrolysis arises at high temperatures.
The sulfamic acid is considered as less corrosive to metals compared to other strong acid such as hydrochloric acid.
As the sulfamic acid retains a scale solubilizing capacity it is considered ideal for removal of scale from cooling towers, boilers, coils, condensers, heat exchangers and a wide range of cooling and heating systems thereby amassing the efficiency of equipment and plant.
Sulfamic acid is a component in the fire quenching media and is the primary raw material for ammonium sulfamate, which is used as a fire retardant for domestic products.
Sulfamic acid is used as an acidic cleaning agent, usually for ceramics and metals.
Over the last few years sulfamic acid has replaced hydrochloric acid as a remover of the rust.
In homes, Sulfamic acid is frequently found as a descaling agent in toilet cleaners, and detergents for the removing the lime scale.
When compared to other strong and most common strong mineral acids, the sulfamic acid has the needed low toxicity, low volatility, and water descaling properties.
Sulfamic acid forms water-soluble salts of ferric iron and calcium.
Sulfamic acid provides intrinsic safety and hence it is preferred over hydrochloric acid for household use.
Unlike the most common acids, the sulfamic acid does not form chlorine gas if invalidly mixed with hypochlorite based products.
As standard in alkalimetry; in acid cleaning; in nitrite removal; in chlorine stabilization for use in swimming pools, cooling towers, paper mills. Solid-acid catalyst in organic synthesis.
Sulfamic acid or its ammonium salt has been recommended for flameproofing fabrics and wood.
Metal salts are used in electroplating. Ammonium sulfamate, q.v.
Sulfamic acid, the monoamide of sulfuric acid, is a strong inorganic acid.
Sulfamic acid is generally used in chemical cleaning processes like removal of nitrites, carbonate- and phosphate-containing deposits.
Sulfamic acid is used as a raw material for the preparation of a synthetic sweetener i.e, sodium cyclohexylsulfamate.
Aqueous solutions of sulfamic acid are unstable and slowly hydrolyse to ammonium bisulfate, but the crystalline solid is indefinitely stable under ordinary storage conditions.
Sulfamic acid's behaviour resembles that of urea, (H2N)2CO.
Both feature amino groups linked to electron-withdrawing centres that can participate in delocalised bonding.
Both liberate ammonia upon heating in water ; however, the sulfamic acid reverts to sulfuric acid , in place of the CO2 that urea would release.
Sulfamic acid appears as a white crystalline solid. Density 2.1 g / cm3. Melting point 205°C.
Combustible.
Irritates skin, eyes, and mucous membranes. Low toxicity.
Used to make dyes and other chemicals.
Sulfamic acid has been one of the most widely used scavengers of nitrous acid.
Uses of Sulfamic Acid:
As sulfamic acid is super-efficient agent for descaling, it is used for cleaning a number of domestic appliances and industrial equipment.
Sulfamic acid is used for cleaning heat exchangers, boilers, condensers, descaling toilets, jackets and coils, efflorescence other deposits of mineral deposits, removing excess grout on tiles, etc.
Sulfamic acid helps remove protein deposits, hard water scale, beer and milk stone, copper corrosion, and light rust.
Some other uses of sulfamic acids are listed below.
-Descaler, rust remover, and cleaner.
-Descaler and cleaner for dairy equipment such as milk evaporators, milkers’ pipeline.
-Descaler and cleaner for brewery equipment such as vats, pipelines, etc.
-Catalyst for esterification process.
-Used in dye & pigment manufacturing
-Used as an herbicide.
-Effective against foot and mouth.
-Used as an ingredient in denture tablets.
-Ingredient in fire extinguishing media.
-Urea-formaldehyde resins coagulator
-Synthesis of nitrous oxide by reaction with nitric acid.
-Chloride stabilizer in pulp & paper industry.
Usage areas:
-Sulfamic acid is a cleaning agent in milking processes, beer, milk, sugar factories and paper mills.
-Sulfamic acid is used as a cleaner and as a descaler.
-Sulfamic acid is used to remove limescale deposits.
-Used for metal pickling.
-Sulfamic acid is used in galvanizing and electro-refining processes.
-Sulfamic acid is used in sulphation and sulfation processes.
-Sulfamic acid is used as a raw material for the manufacture of artificial sweeteners.
-Sulfamic acid is used in the production of pigments and dyes to remove nitrite diazotization.
-Sulfamic acid is used as a catalyst in esterification processes.
-Sulfamic acid is used as a pH adjuster for dyeing and other systems.
-Sulfamic acid is mostly found in cleaning agents used for cleaning surfaces such as ceramics and metals.
-Sulfamic acid is used in the production of rust remover and lime remover.
-Sulfamic acid is contained in tablets used to clean dentures.
-Sulfamic acid is used as a chlorine stabilizer in the paper industry.
-Sulfamic acid is used in pesticides.
-They are used in the production of fireproof paper and salts.
-Sulfamic acid is most commonly found in cleaning agents used to clean surfaces such as metal and ceramics.
-Sulfamic acid is used in the production of lime and rust remover.
-Sulfamic acid is also found in tablets used to clean dentures.
-Sulfamic acid is used in the production of dyestuffs and pigments.
-Sulfamic acid is used as a chlorine stabilizer in the paper industry.
-Sulfamic acid is used in pesticides.
One of the most well-known applications is their use in synthesizing sweetening compounds.
Industrial Applications of Sulfamic Acid:
The sulfamates have been used in the design of various types of therapeutic agents such as nucleotide/nucleoside HIV, antibiotics, HIV protease inhibitors (PIs), weight loss drugs, antiepileptic drugs, and anticancer drugs.
Sulfamic acid is also used as a chlorine stabilizer in cooling towers and swimming pools.
The industrial applications of sulfamic acid are as follows:
Paper & pulp Industry:
Sulfamic Acid inhibits pulp degradation due to temperature at the hydrochloride and chlorination stage.
Sulfamic acid allows bleaching at elevated temperature and lower pH without any loss in strength.
Dyes & Pigments Industry:
Sulfamic acid takes out excess of nitrides that are used in the diazotization reactions during the manufacturing of pigments and dye stuffs.
The sulfamic acid can also remove nitrides if present in process water of emissions.
Applications:
Sulfamic acid is mainly a precursor to sweet-tasting compounds.
Reaction with cyclohexylamine followed by addition of NaOH gives C6H11NHSO3Na, sodium cyclamate.
Related compounds are also sweeteners, such as acesulfame potassium.
Application:
-Sulfamic acid can be used as a catalyst in:
-Friedlander quinoline synthesis.
-Liquid Beckmann rearrangement for the synthesis of amides from ketoximes.
-The preparation of α-aminophosphonates via a three-component reaction between aldehydes, amines, and diethyl phosphite.
Packaging:
-5 g in glass bottle
-25 g in poly bottle
Cleaning agent:
Sulfamic acid is used as an acidic cleaning agent, sometimes pure or as a component of proprietary mixtures, typically for metals and ceramics.
Sulfamic acid is frequently used for removing rust and limescale, replacing the more volatile and irritating hydrochloric acid, which is cheaper.
Sulfamic acid is often a component of household descaling agents, for example, Lime-A-Way Thick Gel contains up to 8% sulfamic acid and has pH 2.0–2.2, or detergents used for removal of limescale.
When compared to most of the common strong mineral acids, sulfamic acid has desirable water descaling properties, low volatility, and low toxicity.
Sulfamic acid forms water-soluble salts of calcium and ferric iron.
Sulfamic acid is preferable to hydrochloric acid in household use, due to its intrinsic safety.
If erroneously mixed with hypochlorite based products such as bleach, Sulfamic acid does not form chlorine gas, whereas the most common acids would; the reaction (neutralisation) with ammonia, produces a salt, as depicted in the section above.
Sulfamic acid also finds applications in the industrial cleaning of dairy and brewhouse equipment.
Although Sulfamic acid is considered less corrosive than hydrochloric acid, corrosion inhibitors are often added to the commercial cleansers of which it is a component.
Sulfamic acid can be used for descaling home coffee and espresso machines and in denture cleaners.
Other uses:
-Catalyst for esterification process
-Dye and pigment manufacturing
-Herbicide
-Coagulator for urea-formaldehyde resins
-Ingredient in fire extinguishing media. Sulfamic acid is the main raw material for ammonium sulfamate which is a widely used herbicide and fire retardant material for household products.
-Pulp and paper industry as a chloride stabilizer
-Synthesis of nitrous oxide by reaction with nitric acid
-The deprotonated form (sulfamate) is a common counterion for nickel(II) in electroplating.
-Used to separate nitrite ions from mixture of nitrite and nitrate ions( NO3−+ NO2−) during qualitative analysis of nitrate by Brown Ring test.
Formula Weight: 97.09
Formula: H3NO3S
Hazard Info: Toxic
Density (g/mL): 2.15
Freezing Point (°C): 205
Solubility: Water, Alcohol and Acetone
Synonyms: Sulfamidic Acid, Aminosulfonic acid
Shelf Life (months): 36
Storage: White
SYNONYM:
5329-14-6
Amidosulfonic acid
Aminosulfonic acid
Sulphamic acid
Amidosulfuric acid
Imidosulfonic acid
Sulfamidic acid
Sulfaminic acid
Jumbo
Sulphamidic acid
Aminosulfuric acid
Kyselina sulfaminova
Kyselina amidosulfonova
sulfuramidic acid
NSC 1871
IUPAC NAME:
Amidoschwefelsäure
Amidosulfonic acid
amidosulfonic acid
Amidosulfonsäure
Amidosulfuric acid
amidosulfuric acid
heptadecanoic acid
Isononyl alcohol
NH2SO3H
TRADE NAME:
Acido solfammico
Jumbo
Sulfamic acid
Sulphamidic acid
