Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Benzene-1,2-dicarboxylic acid(88-99-3)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Benzene-1,2-dicarboxylic acid
Synonyms
1,2-Benzenedicarboxylic acid
o-Dicarboxybenzene
CAS
88-99-3
Formula
C8H6O4
Molecular Weight
166.13
EINECS
201-873-2
RTECS
TH9625000
RTECS Class
Mutagen; Reproductive Effector
Merck
12,7527
Beilstein/Gmelin
608199
Beilstein Reference
4-09-00-03167
EC Class
irritant

Physical and Chemical Properties

Appearance
Colorless or white crystalline material or powder.
Solubility in water
5.7 g/L
Melting Point
79
Boiling Point
315-317
Vapor Pressure
2E-6 (25 C)
Density
1.576 g/cm3
pKa/pKb
2.76 (pKa)
Partition Coefficient
.73
Heat Of Vaporization
66.1 kJ/mol
Heat Of Combustion
-3224 kJ/mol
Usage
Dyes, phenolphthalein, phthalimide, anthranilic acid, synthetic perfumes, laboratory reagent.
Saturation Concentration
Very low at 25 C.
Vapor Density
5.73

First Aid Measures

Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Skin
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Inhalation
Causes respiratory tract irritation.
Skin
May cause skin irritation. May cause dermatitis.
Eyes
Causes eye irritation.
Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
EC Risk Phrase
R 36/37/38
EC Safety Phrase
S 26 36

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Exposure Effects
Prolonged or repeated skin contact may cause dermatitis.
Poison Class
4

Fire Fighting Measures

Flash Point
205
Autoignition
496
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Upper exp. limit
7.7
Lower exp. limit
1.3

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code
4
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing materials.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Transport Information

HS Code
2917 39 80
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