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2-Methylbenzoic acid(118-90-1)

2-Methylbenzoic acid(118-90-1)
Product IdentificationBack to Contents
【Product Name】

2-Methylbenzoic acid
【Synonyms】

2-Methylbenzoic acid
5-Amino-6-nitroquinoline
5-Quinolinamine, 6-nitro-
6-Nitroquinolin-5-amine
o-Methylbenzoic acid
Orthotoluic acid
【CAS】

35975-00-9
【CAS】

118-90-1
【Formula】

C8H8O2
【Formula】

C9H7N3O2
【Molecular Weight】

189.17
【Molecular Weight】

136.15
【EINECS】

204-284-9
【EINECS】

252-822-6
【RTECS】

XU1400000
【RTECS Class】

Drug
【Merck】

12,9673
【Beilstein/Gmelin】

166360
【Beilstein/Gmelin】

1072103
【Beilstein Reference】

4-09-00-01697
【Beilstein Reference】

5-22-10-00303
【EC Class】

irritant
Physical and Chemical PropertiesBack to Contents
【Appearance】

Ochre powder.
【Appearance】

Pale yellow crystals or off-white flaky solid.
【Solubility in water】

Very soluble
【Solubility in water】

Insoluble
【Melting Point】

101 - 104
【Melting Point】

283 - 285
【Boiling Point】

259
【Boiling Point】

409
【Vapor Pressure】

7E-7 (25 C)
【Vapor Pressure】

0.006 (25 C)
【Density】

1.2555 g/cm3
【pKa/pKb】

10.19 (pKb)
【pKa/pKb】

3.95 (pKa)
【Partition Coefficient】

2.36
【Partition Coefficient】

1.84
【Heat Of Vaporization】

52.7 kJ/mol
【Heat Of Vaporization】

66.2 kJ/mol
【Heat Of Combustion】

-4602 kJ/mol
【Refractive Index】

1.5067 (114.6 C)
First Aid MeasuresBack to Contents
【Ingestion】

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
【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】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Inhalation】

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
【Skin】

May cause skin irritation.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】

May cause eye irritation.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and StorageBack to Contents
【Storage】

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
【Storage】

Keep container closed when not in use. 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. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
【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. Keep container tightly closed. Avoid ingestion and inhalation.
Hazards IdentificationBack to Contents
【Ingestion】

Harmful if swallowed. May cause irritation of the digestive tract.
【Ingestion】

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
【Inhalation】

May cause respiratory tract irritation.
【Skin】

May cause skin irritation.
【Eyes】

May cause eye irritation.
【Hazards】

Fine dust dispensed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard.
【EC Risk Phrase】

R 20/22
【EC Risk Phrase】

R 22 36/37/38
【EC Safety Phrase】

S 22 36/37
【EC Safety Phrase】

S 26 36/37/39
【UN (DOT)】

2811
Exposure Controls/Personal ProtectionBack to Contents
【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】

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
【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.
【Poison Class】

4
Fire Fighting MeasuresBack to Contents
【Flash Point】

119
【Flash Point】

201
【Autoignition】

495
【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: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
【Upper exp. limit】

6.8
【Lower exp. limit】

1.2
【Fire Potential】

This material is probably combustible.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
【Small spills/leaks】

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability and ReactivityBack to Contents
【Disposal Code】

4
【Incompatibilities】

Oxidizing agents.
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents.
【Decomposition】

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, acrid smoke and fumes.
【Decomposition】

Irritating and toxic fumes and gases.
Transport InformationBack to Contents
【UN Number】

2811
【HS Code】

2916 39 00
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