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Glutaric anhydride

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Name

Glutaric anhydride

EINECS 203-593-6
CAS No. 108-55-4 Density 1.26 g/cm3
Solubility hydrolysis in water Melting Point 50-55 °C(lit.)
Formula C5H6O3 Boiling Point 287 °C at 760 mmHg
Molecular Weight 114.10 Flash Point 120.9 °C
Transport Information Appearance Beige to light brown crystalline powder
Safety 26-36/39-36/37/39-36 Risk Codes 21/22-37/38-41-36/37/38-20/21/22
Molecular Structure Molecular Structure of 108-55-4 (2H-Pyran-2,6(3H)-dione,dihydro-) Hazard Symbols HarmfulXn
Synonyms

Glutaricanhydride (6CI,7CI,8CI);Dihydro-2H-pyran-2,6(3H)-dione;Dihydro-3H-pyran-2,6-dione;Dihydropyran-2,6-dione;Glutaric acid anhydride;NSC 16640;Oxacyclohexane-2,6-dione;Pentanedioic acid anhydride;Pentanedioicanhydride;Pyroglutaric acid;

 

Glutaric anhydride Chemical Properties

Empirical Formula: C5H6O3
Molecular Weight: 114.0993 g/mol
EINECS: 203-593-6
Index of Refraction: 1.463
Density: 1.26 g/cm3
Flash Point: 120.9 °C
Enthalpy of Vaporization: 52.61 kJ/mol
Boiling Point: 287 °C at 760 mmHg
Vapour Pressure: 0.00255 mmHg at 25 °C
Melting point: 50-55 °C(lit.)
Storage tempreture: 2-8 °C
Water solubility: Hydrolysis
Sensitive: Moisture Sensitive
Appearance: Beige to light brown crystalline powder
Structure of Glutaric anhydride (CAS NO.108-55-4):
              
Product Category of Glutaric anhydride (CAS NO.108-55-4): Pharmaceutical Intermediates;Anhydride Monomers;Carbonyl Compounds;Carboxylic Acid Anhydrides

Glutaric anhydride Uses

 Glutaric anhydride(108-55-4) is mainly used in the production of rubber, plastics, resins, medicines, etc.

Glutaric anhydride Production

1. With the dehydrating agent, such asacetic anhydride,  heating the glutaric acid to dehydrate it and obtain  glutaric anhydride(108-55-4).
2. Heating mixture of binary carboxylic acid (succinic acid, glutaric acid, adipic acid) to dehydrate succinic acid and glutaric acid, then take some of the distillate under a certain temperature to get glutaric anhydride(108-55-4) .

Glutaric anhydride Toxicity Data With Reference

1.    

orl-rat LDLo:4460 mg/kg

    AIHAAP    American Industrial Hygiene Association Journal. 23 (1962),95.
2.    

skn-rbt LDLo:1780 mg/kg

    AIHAAP    American Industrial Hygiene Association Journal. 23 (1962),95.

Glutaric anhydride Consensus Reports

Reported in EPA TSCA Inventory.

Glutaric anhydride Safety Profile

Moderately toxic by skin contact. Mildly toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes. See also ANHYDRIDES.
Hazard Codes: HarmfulXn
Risk Statements: 21/22-37/38-41-36/37/38-20/21/22 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R21/22:Harmful in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R37/38:Irritating to respiratory system and skin. 
R41:Risk of serious damage to the eyes.
Safety Statements: 26-36/39-36/37/39-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.

Glutaric anhydride Specification

 Glutaric anhydride , its cas register number is 108-55-4. It also can be called Dihydro-2H-pyran-2,6(3H)-dione ; and 2H-Pyran-2,6(3H)-dione, dihydro- .

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