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HEXAHYDROPHTALIC ANHYDRIDE = CYCLOHEXANE-1,2-DICARBOXYLIC ANHYDRIDE
CAS Number: 85-42-7
EC Number: 201-604-9
MDL Number: MFCD00005926
Hexahydrophtalic Anhydride (HHPA) belongs to a group of organic compounds called acid anhydrides.
In component epoxy resins, Hexahydrophtalic Anhydride serve as hardeners, which bind covalently to 2 molecules, allowing polymerisation.
Hexahydrophthalic Anhydride (HHPA) is a saturated dicarboxylic anhydride and will undergo most of the reactions typical of this class of compounds.
Hexahydrophtalic Anhydride is supplied as a white low-melting solid (38°C) which is miscible with most organic solvents.
In water, Hexahydrophtalic Anhydride hydrolyzes to hexahydrophthalic acid.
Hexahydrophthalic anhydride (HHPA) is a highly sensitizing industrial chemical that is known to covalently bind to endogenous proteins.
Hexahydrophthalic anhydride (HHPA) belongs to the family of acid anhydrides, the members of which are reactive organic chemicals of low molecular weight widely used in alkyd and epoxy resins.
Solubility in water: hydrolyzes.
Other solubilities: miscible with benzene, toluene, acetone, ccl4,, chloroform, ethanol, ethyl acetate, slightly soluble in petroleum ether
Hexahydrophtalic Anhydride has a role as an allergen
Hexahydrophtalic Anhydride has high-temperature stability, excellent dielectric properties, and high glass transition temperature.
Anhydrides are primarily used as hardeners in epoxy resin formulations as well as cross-linkers in polyester resin systems.
The various anhydrides or their mixes are used depending on the requirements of the end product.
Hexahydrophtalic Anhydride is also used as a hardener for epoxy resins as well as an intermediate product for (unsaturated) polyester and alkyd resins.
The high colour stability in comparison to other anhydrides is particularly worth highlighting here.
Hexahydrophtalic Anhydride is especially suited for applications where high load epoxy systems are required due to its very low viscosity and high mixture ratio with epoxy resin.
Hexahydrophtalic Anhydride is a white solid or clear liquid if melted with molecular formula C8H10O3.
Hexahydrophthalic anhydride is a cyclic dicarboxylic anhydride that is the cyclic anhydride of hexahydrophthalic acid.
Hexahydrophtalic Anhydride has a role as an allergen.
Hexahydrophtalic Anhydride is a cyclic dicarboxylic anhydride and a tetrahydrofurandione.
A cyclic dicarboxylic anhydride that is the cyclic anhydride of hexahydrophthalic acid.
USES and APPLICATIONS of HEXAHYDROPHTALIC ANHYDRIDE:
-Hexahydrophthalic anhydride is used in the synthesis of polyester resin
-Hexahydrophthalic anhydride is used as modifier of alkyd resin
-Hexahydrophthalic anhydride is used as curing accelerant in the pasting of epoxy resin
-Hexahydrophthalic anhydride is used as material of insecticide
-Hexahydrophthalic anhydride is used as material of drug
-Hexahydrophthalic anhydride is used in plasticizer and antirust
-Hexahydrophtalic Anhydride is mainly used as an intermediate for coating resins (alkyds, polyesters), plasticizers, sealant, curing agent in adhesive, insect repellents, rust inhibitors, electronics applications.
-Hexahydrophtalic Anhydride’s low melt viscosity, as well as its high mix ratio with epoxy resins, makes Hexahydrophtalic Anhydride particularly suitable as hardener for epoxy resin for applications where high filler loadings are required.
-Hexahydrophtalic Anhydride is preferred over other aromatic anhydrides in casting and coating applications for his higher resistance to yellowing.
-Hexahydrophtalic Anhydride (HHPA) is a cyclic anhydride that can be used for a variety of applications such as: plasticizer, rust inhibitor, and a curing agent for epoxy based resins.
-Hexahydrophtalic Anhydride , in combination with triethaylamine (TEA), can be used as a polymerization initiator in the preparation of polyester based resins.
-Hexahydrophtalic Anhydride can also be used as a hardener to cure 1,4-butanediol diglycidyl ether which can be used as an epoxy based system for electronic devices.
-Hexahydrophthalic anhydride is used as a curing agent for epoxy resins and an intermediate for plasticizers and other chemicals.
-Hexahydrophthalic anhydride is used in the chemical, polymers, and paints, lacquers, and varnishes industries.
-Hexahydrophtalic Anhydride (HHPA) is widely used for electronics applications, e.g.
-Hexahydrophtalic Anhydride cured epoxy resins have excellent dielectric properties, high-temperature stability, and high glass transition temperatures.
-Hexahydrophtalic Anhydride is used as a curing agent in adhesive coatings and sealant materials, e.g. for the second-generation two-part epoxy adhesive synthesis.
-Hexahydrophthalic anhydride is also used in the manufacture of alkyd and polyester resins, insecticides, and rust preventives.
-Hexahydrophthalic anhydride is used Intermediate for alkyds, plasticizers, insect repellents, and rust inhibitors; hardener in epoxy resins.
-Hexahydrophtalic Anhydride , in combination with triethaylamine (TEA), can be used as a polymerization initiator in the preparation of polyester based resins.
-Hexahydrophtalic Anhydride can also be used as a hardener to cure 1,4-butanediol diglycidyl ether which can be used as an epoxy based system for electronic devices.
-Hexahydrophthalic anhydride is used Adhesives & Sealants, Industrial Chemicals, Coatings, Paints
-CASE - Coatings, Adhesives, Sealants & Elastomers, Chemical & Materials Manufacturing
-Hexahydrophthalic anhydride is mainly used in paints, epoxy curing agents, the polyester resins, adhesives, plasticizers, intermediates to prevent rust, etc.
-Hexahydrophthalic anhydride is used Hardener for epoxy resins, unsaturated polyester resin co-monomer, intermediate for alkyd resins and rust inhibitors, raw material for pvc-plasticizers
-Hexahydrophtalic Anhydride is ideally used as an intermediate for coating resins.
-Hexahydrophtalic Anhydride is needed when a high filler loadings are much required.
-Hexahydrophtalic Anhydride is also useful for insect repellents, rust inhibitors etc.
Hexahydrophtalic Anhydride is known for its low melting viscosity, superb mixing ratio and excellent dielectric properties.
-Hexahydrophtalic Anhydride ensures a dielectric properties and also useful for electronics applications.
-Hexahydrophthalic anhydride is used Paints, lacquers and varnish (including thinner); and cleaning agents.
-Hexahydrophthalic anhydride is used in adhesives, binding agents.
-Hexahydrophthalic anhydride is used in viscosity adjusters (lubricants).
-Hexahydrophthalic anhydride is used as a process regulator.
-Hexahydrophthalic anhydride is used as a fixing agent.
-Hexahydrophthalic anhydride is used in heat transferring agents.
-Hexahydrophthalic anhydride is used in insulating materials.
-Hexahydrophthalic anhydride is used as a plastic hardener (such as food packaging, storage, toys, mobiles).
-Hexahydrophthalic anhydride is used in colouring agents (dyes).
-Hexahydrophtalic Anhydride is a very effective curing agent for epoxy resins.
-Hexahydrophtalic Anhydride is also used in the preparation of alkyd and polyester resins where good color stability is important.
-Hexahydrophtalic Anhydride cured epoxies are characterized by reduced color and improved electrical and physical properties as compared to amine-cured products.
The low melting point of Hexahydrophtalic Anhydride allows Hexahydrophtalic Anhydride to be easily handled and blended with liquid resins.
-Viscosities of the Hexahydrophtalic Anhydride-epoxy mixtures are lower, pot life is extended in the absence of catalyst and curing reaction is less exothermic than with other hardeners.
Areas of application including casting, laminating, embedding, coating, and impregnating electrical components.
-Hexahydrophtalic Anhydride is used in coatings, epoxy resin curing agents, adhesives, plasticizers, etc.
-Hexahydrophtalic Anhydride is a bio-based direct drop-in for petrochemical HHPA, a speciality chemical which finds application in durable, high gloss, weather-resistant coatings, and high-end electrical applications.
-Hexahydrophtalic Anhydride is mainly used as intermediate for coating resins, plasticizers, insect repellents and rust inhibitors, and as hardener for epoxy resins.
-Hexahydrophtalic Anhydride is preferred over other cyclic anhydrides in casting and coating applications for his higher resistance to yellowing.
-Hexahydrophtalic Anhydride are widely used in the production and processing of plastics, paints and fine chemicals, and in the manufacture of electrical machines.
SPECIAL ANHYDRIDES:
Hexahydrophthalic anhydride – HHPA
Tetrahydrophthalic anhydride – THPA
Methyltetrahydrophthalic anhydride – MTHPA
Methylhexahydrophthalic anhydride – MHHPA
Nadic anhydride – NAN
Methyl nadic anhydride – m-NAN
PHYSICAL and CHEMICAL PROPERTIES of HEXAHYDROPHTALIC ANHYDRIDE::
Molecular Weight: 154.16
XLogP3-AA: 1.2
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 3
Rotatable Bond Count: 0
Exact Mass: 154.06299417
Monoisotopic Mass: 154.062994177
Topological Polar Surface Area: 43.4 Ų
Heavy Atom Count: 11
Formal Charge: 0
Complexity: 187
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 2
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes
Appearance Form: solid
Color: white
Odor: aromatic
Odor Threshold: No data available
pH: No data available
Melting point/freezing point Melting point/range: 31,9 °C
Initial boiling point and boiling range: 290,6 °C at 1013,0 hPa
Flash point: 152 °C - closed cup - ASTM D 93
Evaporation rate: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Vapor pressure: 0,77 hPa at 20 °C - OECD Test Guideline 104
Vapor density: No data available
Density: 1,191 g/cm3 at 40 °C
Relative density: No data available
Water solubility: 4,2 g/l at 20 °C - OECD Test Guideline 105- soluble
Partition coefficient: n-octanol/water log Pow: 1,59 at 40 °C
Autoignition temperature: No data available
Decomposition temperature: No data available
FIRST AID MEASURES of HEXAHYDROPHTALIC ANHYDRIDE:
-General advice:
Consult a physician.
-If inhaled:
If breathed in, move person into fresh air.
Consult a physician.
-In case of skin contact:
Wash off with soap and plenty of water.
Consult a physician.
-In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
-If swallowed:
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
Consult a physician.
ACCIDENTAL RELEASE MEASURES of HEXAHYDROPHTALIC ANHYDRIDE:
-Personal precautions, protective equipment and emergency procedures:
Use personal protective equipment.
Ensure adequate ventilation.
Evacuate personnel to safe areas.
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Sweep up and shovel.
Keep in suitable, closed containers for disposal.
FIRE FIGHTING MEASURES of HEXAHYDROPHTALIC ANHYDRIDE:
-Extinguishing media
*Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
EXPOSURE CONTROLS/PERSONAL PROTECTION of HEXAHYDROPHTALIC ANHYDRIDE:
-Control parameters:
*Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Face shield and safety glasses
Use equipment for eye protection.
*Skin protection:
Handle with gloves.
Wash and dry hands.
*Control of environmental exposure:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
HANDLING and STORAGE of HEXAHYDROPHTALIC ANHYDRIDE:
-Precautions for safe handling:
*Hygiene measures:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Keep container tightly closed in a dry and well-ventilated place.
Store in cool place.
Store under inert gas.
STABILITY and REACTIVITY of HEXAHYDROPHTALIC ANHYDRIDE:
-Reactivity:
No data available
-Chemical stability:
Stable under recommended storage conditions.
SYNONYMS:
Cyclohexane-1,2-dicarboxylic anhydride
Hexahydrophthalic anhydride
85-42-7
Hexahydroisobenzofuran-1,3-dione
1,2-Cyclohexanedicarboxylic anhydride
HHPA
1,3-Isobenzofurandione, hexahydro-
Lekutherm Hardener H
Hexahydrophthalic acid anhydride
Cyclohexane-1,2-dicarboxylic anhydride
Araldite HT 907
1,2-Cyclohexanedicarboxylic acid anhydride
NT 907
octahydro-2-benzofuran-1,3-dione
Hexahydro-2-benzofuran-1,3-dione
NSC 8622
3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione
hexahydro-1,3-isobenzofurandione
CHEBI:103210
Cyclohexane-1,2-dicarboxylic acid anhydride
MFCD00064863
1,2-Cyclohexane dicarboxylic anhydride
rel-(3aR,7aR)-Hexahydroisobenzofuran-1,3-dione
trans-Cyclohexane-1,2-dicarboxylic anhydride
(+)-trans-1,2-Cyclohexanedicarboxylic Anhydride
Hexahydrophthalic anhydride(HHPA)
Hexahydroisobenzofuran-1,3-dione
trans-1,2-Cyclohexanedicarboxylic anhydride
1,3-Isobenzofurandione, hexahydro-, trans-
EINECS 201-604-9
MFCD00674195
HSDB 7912
EINECS 238-009-9
(3aR,7AS)-hexahydroisobenzofuran-1,3-dione
hexahydrophtalic anhydride
DSSTox_CID_6515
Epitope ID:122664
EC 201-604-9
DSSTox_RID_78131
DSSTox_GSID_26515
SCHEMBL15324
3a,4,5,6,7,7a-hexahydroisobenzofuran-1,3-dione
CHEMBL273968
DTXSID8026515
NSC8622
NSC-8622
Tox21_200661
BBL011768
STK387488
Hexahydro-2-benzofuran-1,3-dione #
2,4,5,6-tetrahydrophthalic anhydride
AKOS000119684
AKOS016352936
CS-W018047
DS-4586
SB44842
CAS-85-42-7
NCGC00248785-01
NCGC00258215-01
AC-19638
SY234482
DB-042035
DB-042579
DB-056869
C1417
C1657
FT-0623877FT-0627011
FT-0637021
FT-0657907
FT-0659322
D70901
A841328
A855212
1,2-Cyclohexanedicarboxylic anhydride, cis + trans
J-501171
J-521450
Q26840977
F0001-0429
1,2-Cyclohexanedicarboxylic acid anhydride predominately cis
Hexahydrophthalic anhydride
Hexahydro-2-benzofuran-1,3-dione
1,3-Isobenzofurandione, hexahydro-
85-42-7
1,3-Isobenzofurandione, hexahydro-
1,2-CYCLOHEXANDICARBONSAEUREANHYDRID
1,2-Cyclohexanedicarboxylic acid anhydride
1,2-Cyclohexanedicarboxylic anhydride
anhidrido ciclohexano-1,2-dicarboxilico
Anhydride cyclohexane-1,2-dicarboxylique
Araldite Hardener HY 925
Araldite HT 904
Araldite HT 907
Araldite HY 907
Araldite HY 925
Cyclohexan-1,2-dicarbonsaureanhydrid
cyclohexane-1,2-dicarboxylic anhydride
Cyclohexanedicarboxylic anhydride
Epilox H 11-01
Hexahydro-1,3-isobenzofurandione
Hexahydrophthalic acid anhydride
Lekutherm Hardener H
NSC 8622
PHTHALIC ANHYDRIDE, HEXAHYDRO-
Rikacid HH
Rikacid HH-A
Rikacid HHPA
Rikacid MH 700E
Rutadur AG
Rutapox HX
EINECS 201-604-9
1,2-Cyclohexane dicarboxylic anhydride
Cyclohexane-1,2-dicarboxylic acid anhydride
Cyclohexane-1,2-dicarboxylic anhydride
HHPA
102483-85-2
109265-67-0
117276-22-9
95327-28-9
