p-Toluic acid

essential information

P-methylbenzoic acid;

It is also known as 4-methylbenzoic acid in Chinese; P-toluic acid

P-toluic acid

4-methylbenzoic acid; p-Toluylic acid; Crithminic acid; Toluenecarboxylic acid; p-Toluic acid

Molecular formula: C8H8O2

Molecular weight: 136.15

CAS No.: 99-94-5

EINECS 202-803-3

nature

Melting point 179-182 ° C。 Boiling point 274-275 ° C。

Water solubility < 0.1 g / 100 ml at 19 ° C。

Flash point: 124.7 ° C

Vapor pressure: 0.00248mmhg at 25 ° C

Solubility: easily soluble in methanol, ethanol, ether, insoluble in hot water.

Performance and application: soluble in methanol and ether, insoluble in hot water, volatile with steam; Phthalic acid can be used as intermediate of medicine, photosensitive material, pesticide and organic pigment. Mainly used in the manufacture of hemostatic aromatic acid, p-methylnitrile, p-methylbenzoyl chloride, photographic materials, etc

quality index

Project indicators

Appearance white or light yellow crystalline powder

Content,% ≥ 99.0 (HPLC)

Acid value, mgKOH / g 409-412

Melting point, ℃ 178 ～ 180

Product use

Mainly used in the manufacture of hemostatic aromatic acid, p-methylnitrile, p-toluenesulfonyl chloride, photographic materials, etc. It can be used in organic synthesis intermediate, pesticide industry to produce fungicide phosphoramide, perfume and film[ 1] Safety terminology

S22Do not breathe dust.

Do not inhale dust.

Risk terms

R22Harmful if swallowed.

Harmful if swallowed.