Hexahydrophthalic anhydride
Description References- Product Name
- Hexahydrophthalic anhydride
- CAS No.
- 85-42-7
- Chemical Name
- Hexahydrophthalic anhydride
- Synonyms
- HHPA;cyclohexane-1,2-dicarboxylic anhydride;1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE;Hexahydro-isobenzofuran-1,3-dione;1,3-Isobenzofurandione, hexahydro-;Hexahydrophthalic Anhydride (HHPA);NT 907;C6H10(CO)2O;Araldite HT 907;RRSYY(Selfotel)-1
- CBNumber
- CB7468504
- Molecular Formula
- C8H10O3
- Formula Weight
- 154.16
- MOL File
- 85-42-7.mol
Hexahydrophthalic anhydride Property
- Melting point:
- 32-34 °C(lit.)
- Boiling point:
- 158 °C17 mm Hg(lit.)
- Density
- 1.18
- vapor pressure
- 0.31Pa at 25℃
- refractive index
- 1.4620 (estimate)
- RTECS
- NP6895168
- Flash point:
- >230 °F
- storage temp.
- Store below +30°C.
- solubility
- Chloroform, Methanol (Slightly)
- form
- Solid
- pka
- 4.14[at 20 ℃]
- color
- White to Off-White
- Water Solubility
- 4.2g/L at 20℃
- Sensitive
- Moisture Sensitive
- BRN
- 83213
- Exposure limits
- ACGIH: Ceiling 0.005 mg/m3
- Stability:
- Moisture Sensitive
- LogP
- -4.14 at 20℃
- CAS DataBase Reference
- 85-42-7(CAS DataBase Reference)
- NIST Chemistry Reference
- 1,2-Cyclohexane dicarboxylic anhydride(85-42-7)
- EPA Substance Registry System
- Hexahydrophthalic anhydride (85-42-7)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 41-42/43
- Safety Statements
- 23-24-26-37/39
- RIDADR
- 3335
- WGK Germany
- 1
- TSCA
- Yes
- HS Code
- 29172090
- Hazardous Substances Data
- 85-42-7(Hazardous Substances Data)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H317May cause an allergic skin reaction
H318Causes serious eye damage
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284Wear respiratory protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
N-Bromosuccinimide Price
- Product number
- 123463
- Product name
- 1,2-Cyclohexanedicarboxylic anhydride, predominantly cis
- Purity
- 95%
- Packaging
- 100g
- Price
- $47
- Updated
- 2024/03/01
- Product number
- 123463
- Product name
- 1,2-Cyclohexanedicarboxylic anhydride, predominantly cis
- Purity
- 95%
- Packaging
- 500g
- Price
- $82.8
- Updated
- 2024/03/01
- Product number
- L20001
- Product name
- 1,2-Cyclohexanedicarboxylic anhydride, cis + trans, 97%
- Packaging
- 100g
- Price
- $33.8
- Updated
- 2024/03/01
- Product number
- L20001
- Product name
- 1,2-Cyclohexanedicarboxylic anhydride, cis + trans, 97%
- Packaging
- 500g
- Price
- $60.9
- Updated
- 2024/03/01
- Product number
- H294020
- Product name
- Hexahydro-1,3-isobenzofurandione
- Packaging
- 2.5g
- Price
- $135
- Updated
- 2021/12/16
Hexahydrophthalic anhydride Chemical Properties,Usage,Production
Description
Hexahydrophthalic anhydride (HHPA) is widely used for electronics applications, e.g. HHPA cured epoxy resins have excellent dielectric properties, high-temperature stability, and high glass transition temperatures. HHPA 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.
References
[1] Guy Rabilloud, High Performance Polymers. Vol. 1 Conductive Adhesives, 1997
[2] John Burke Sullivan and Gary R. Krieger, Clinical Environmental Health and Toxic Exposures, 2001
[3] B. A. G. Jönsson, H. Welinder, C. Hansson and B. Ståhlbom, Occupational exposure to hexahydrophthalic anhydride: air analysis, percutaneous absorption, and biological monitoring, International Archives of Occupational and Environmental Health 1993, vol. 65, 43-47
Chemical Properties
White crystalline powder
Uses
Intermediate for alkyds, plasticizers, insect repellents, and rust inhibitors; hardener in epoxy resins.
Uses
HPPA, in combination with triethaylamine (TEA), can be used as a polymerization initiator in the preparation of polyester based resins. It 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.
Application
Predominantly cis 1,2-cyclohexanedicarboxylic 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.
HPPA, in combination with triethaylamine (TEA), can be used as a polymerization initiator in the preparation of polyester based resins. It 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.
Definition
ChEBI: A cyclic dicarboxylic anhydride that is the cyclic anhydride of hexahydrophthalic acid.
General Description
Predominantly cis 1,2-cyclohexanedicarboxylic 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.
Hazard
Toxic by inhalation, strong irritant to eyes and skin.
Flammability and Explosibility
Non flammable
Synthesis
Hexahydrophthalic anhydride is obtained by reacting ciscyclohexane-1, 2-dicarboxylic acid with oxalyl
chloride.Combine
ciscyclohexane-1, 2-dicarboxylic acid (1 mmol, 172 mg) and oxalyl
chloride (1.2 mmol, 152 mg, 0.103 ml) in dry toluene (5 mL) and add a
drop of freshly distilled DMF. Purge the reaction vessel with argon and
heat the reaction under stirring for 3 h. Stop the stirring, decant the
toluene solution and filter. Evaporate the volatiles. Transform into
crystalline form by trituration with diethyl ether. 1H NMR (400 MHz, CDCl3) |? 3.18 - 3.12 (m, 2H 2CH) 1.96 - 1.83 (m, 4H 2CH2) 1.57 - 1.49 (m, 4H 2CH2). HRMS (ESI), calcd for C8H10NaO3 [M+Na]+ 175.0522, found 175.0527; calcd for C9H14NaO4 [M+CH3 OH+Na]+ 209.0784, found 209.0788.
Fig The synthetic method of Hexahydrophthalic anhydride.
Purification Methods
It has been obtained by heating the trans-acid or anhydride at 200o. Crystallise it from *C6H6/Et2O or distil it. [Kohler & Jansen J Am Chem Soc 60 2145 1938, Abell J Org Chem 22 769 1957, Beilstein 17 II 452, 17 III/IV 5931.]
Hexahydrophthalic anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Hexahydrophthalic anhydride manufacturers
- Product
- Hexahydrophthalic anhydride 85-42-7
- Price
- US $0.00/Kg/Drum
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 1000mt
- Release date
- 2021-09-24
- Product
- Hexahydrophthalic anhydride 85-42-7
- Price
- US $34.00-1.30/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-02
- Product
- Hexahydrophthalic anhydride 85-42-7
- Price
- US $100.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 100 tons
- Release date
- 2022-10-10