3-Trifluoromethylbenzioc Acid CAS 454-92-2

Product Description:

Product Name: 3-Trifluoromethylbenzioc acid CAS NO: 454-92-2

Synonyms:

a,a,a-trifluoro-m-toluic acid;

3-Carboxybenzotrifluoride;

m-benzoic Acid;

Chemical & Physical Properties:

Appearance: Off-white crystal

Assay :≥99.0%

Density: 1.403 g/cm3

Boiling Point: 238.4℃ (775 mmHg)

Melting Point: 104-106℃

Flash Point: 102.9℃

Stability: Stable at room temperature in closed containers under normal storage and handling conditions.

Storage Condition: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Vapor Pressure: 0.0241mmHg at 25℃

Safety Information:

Symbol: GHS07

Signal Word: Warning

Safety Statements: S24/25

WGK Germany: 3

Risk Statements: R36/37/38

HS Code: 29163900

Hazard Codes: Xi

Hazard Statements: H315-H319-H335

Precautionary Statements: P261-P305 + P351 + P338

3- trifluoromethyl benzoic acid is a kind of chemical intermediate in medicine and pesticide, which has a very wide application in medicine and pesticide and other fields. At present, there are mainly the following preparation methods: 1) m-difluorotoluene as raw material, with 30% fuming sulfuric acid heating reflux hydrolysis, cooling into ice water, filtration product, yield: 66.1%. This preparation method has a low yield and produces a large amount of waste acid, which does not meet the requirements of green Chemicalbook production. 2) Taking m-trifluoromethyl benzyl chlori-de as raw material, chlorinated with chlorine gas under the action of initiator at 50-90℃, and then reflux hydrolyzed with 2.5-10% sodium hydroxide to neutralize and filter the product m-trifluoromethyl benzoic acid, with a total yield of 76.5-85.5% in two steps. The use of chlorine gas in this preparation method will be very limited in practical use, and it is a two-step reaction, the total rate is not very high.

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