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MSDS for 3,4-Dihydroxybenzoic acid CAS No.:99-50-3
Apr 02, 2018

3,4-Dihydroxybenzoic acid(99-50-3)

ContentsProduct IdentificationPhysical and Chemical PropertiesFirst Aid MeasuresHandling and StorageHazards IdentificationExposure Controls/Personal       ProtectionFire Fighting MeasuresAccidental Release MeasuresStability and ReactivityTransport Information

 

Product IdentificationBack to Contents【Product     Name】          3,4-Dihydroxybenzoic acid【Synonyms】          3,4-Dihydroxybenzoic acid     4,5-Dihydroxybenzoic acid     4-Carboxy-1,2-dihydroxybenzene【CAS】          99-50-3【Formula】          C7H6O4【Molecular     Weight】          154.12【EINECS】          202-760-0【RTECS】          UL0560000【RTECS     Class】          Mutagen【Merck】          12,8080【Beilstein/Gmelin】          1448841【Beilstein     Reference】          4-10-00-01459

 

Physical and Chemical PropertiesBack to Contents【Appearance】          Brown powder.【Solubility     in water】          Very soluble【Melting     Point】          202 - 204【Boiling     Point】          125 - 135 (0.001 torr)【Density】          1.5415 g/cm3【pKa/pKb】          4.45 (pKa)【Partition     Coefficient】          1.4【Usage】          Antioxidant.

 

First Aid MeasuresBack to Contents【Ingestion】          Never give anything by mouth to an unconscious person. Get medical aid. 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. DO NOT use mouth-to-mouth respiration.【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】          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】          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. Keep container     tightly closed. Avoid ingestion and inhalation.

 

Hazards IdentificationBack to Contents【Inhalation】          Causes respiratory tract irritation. The toxicological properties of this     substance have not been fully investigated. Can produce delayed pulmonary     edema.【Skin】          Causes skin irritation.【Eyes】          Causes eye irritation. May cause chemical conjunctivitis.【Ingestion】          May cause gastrointestinal irritation with nausea, vomiting and diarrhea.     The toxicological properties of this substance have not been fully     investigated.【EC Risk     Phrase】          R 36/37/38【EC     Safety Phrase】          S 26 36

 

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】          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】          Effects may be delayed.

 

Fire Fighting MeasuresBack to Contents【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.

 

Accidental Release MeasuresBack to Contents【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【Incompatibilities】          Oxidizing agents.【Stability】          Stable at room temperature in closed containers under normal storage and     handling conditions.【Decomposition】          Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

 

Transport InformationBack to Contents【HS Code】          2918 29 90


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