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名称:2,4-二甲基苯甲酸
 

纯度:≥99% 包装:25公斤/桶
结构式
                                 

CAS:   611-01-8
分子式:  C9H10O2
分子量:  150.18

中文名称:  2,4-二甲基苯甲酸
                   不对称间二甲苯酸

英文名称:  2,4-dimethyl-Benzoic acid
                   2,4-dimethyl-benzoic acid
                   2,4-dimethylbenzoic acid
                   2,4-Dimethyl-benzoic acid

性质描述:  白色粉末或晶体,熔点  123-127 ,沸点 267(727 mmHg) 

质量指标
性状     白色粉末或晶体
熔点     124~126
含量      ≥99%

用途:  有机合成及农药、医药中间体。

其它信息:
Product Identification
【Product Name】2,4-Dimethylbenzoic acid 2,4-二甲基苯甲酸
【Synonyms】4-Carboxy-1,3-dimethylbenzene
【CAS】611-01-8
【Formula】C9H10O2
【Molecular Weight】150.18
【EINECS】210-246-2
【Beilstein/Gmelin】971589
【Beilstein Reference】4-09-00-01801

Physical and Chemical Properties
【Appearance】White powder.
【Solubility in water】Very soluble
【Melting Point】123 - 124℃
【Boiling Point】267℃
【Vapor Pressure】0.0004 (39℃)
【pKa/pKb】4.18 (pKa)

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

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. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification
【Ingestion】May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
【Inhalation】May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
【Skin】May cause skin irritation. The toxicological properties of this material have not been fully investigated.
【Eyes】May cause eye irritation. The toxicological properties of this material have not been fully investigated.
【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】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.

Fire Fighting Measures
【Flash Point】154
【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 Measures
【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. Provide ventilation.

Stability and Reactivity
【Incompatibilities】Oxidizing agents.
【Stability】Stable under normal temperatures and pressures.
【Decomposition】Carbon monoxide, carbon dioxide.

Transport Information
【HS Code】2916 39 00



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