Name: Salicylic acid

Other name: o-hydroxybenzoic acid

Chemical formula: C7H6O3

Molecular weight: 138.12

CAS Registry Number: 69-72-7

EINECS registration number: 200-712-3

Melting point: 158~161

Boiling point: 210 (2666pa)

Water solubility: slightly soluble in water

External view: crystalline powder

Flash point: 157

Should be used: disinfectant and antiseptic

Refractive index: 1.565

Vapor pressure: 1mmHg (114ºC)

Molar refractive index: 35.06

Molar volume: 100.3 (m3/mol)

Isotonic volume: 284.4

Surface tension: 64.4 (dyne/cm)

Containing amount: C7H6O3 shall not be less than 99.5%.

Role and use

1. Standards for alkalimetry and iodometric titration. Fluorescent indicator, complex indicator.

2. This product is used as an anti-scorching agent in the rubber industry and the production of ultraviolet absorbers and foaming agents.

3. Used as a coordination indicator and masking agent. Color developer and preservative for titanium, zirconium and tungsten plasma.

4. Salicylic acid is used as an additive in some weakly acidic electrolytes, and also as a complexing agent for electroplating or electroless plating.

5. Cosmetic preservatives. Mainly used for toilet water, prickly heat water, quinine head water and other water cosmetics. In addition to antiseptic and bactericidal effects, it also has the functions of eliminating sweat, relieving itching and swelling, relieving pain and inflammation.