CAS 1319-77-3 Cresol (mixture Of Isomers)

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CAS 1319-77-3 Cresol (mixture of isomers)

1. Basic Product Information

Chemical Name Cresol (mixture of o‑, m‑, p‑cresol)

Synonyms Mixed Cresols, Cresylic Acid, Tricresol, Methylphenol

CAS Number 1319‑77‑3

EC Number 215‑293‑2

Molecular Formula C₇H₈O

Molecular Weight 108.14 g/mol

HS‑Code 27079910

2. Chem‑Physical Properties

Appearance Colorless to amber‑brown oily liquid, darkens on exposure to air & light

Odor Characteristic phenolic / tar‑like odor

Density (20 °C) 1.030‑1.050 g/cm³

Refractive index n₂₀/D 1.539‑1.544

Boiling point 192‑205 °C @760 mmHg

Melting point −2 ~ −1 °C

Flash point (closed cup) 80‑82 °C

Vapor pressure (25 °C) 0.38 mmHg

Solubility in water Slightly soluble (~19‑20 g/L @20℃)

Solubility Miscible with ethanol, ether, benzene, alkali aqueous solution

Stability Light‑sensitive, air‑sensitive; incompatible with strong oxidizers, strong bases

3. Quality Specification (Industrial Grade)

Test Item	Unit	Specification	Typical Result	Test Method
Appearance	—	Pale‑yellow to brown oily liquid	Complies	Visual
Total Cresol Isomers (GC)	%	≥98.0	98.6	GC‑FID
Phenol	%	≤1.0	0.35	GC‑FID
o‑Cresol	%	30‑42	36.2	GC‑FID
m‑Cresol	%	38‑48	42.5	GC‑FID
p‑Cresol	%	12‑18	15.1	GC‑FID
Moisture	%	≤0.30	0.12	Karl‑Fischer
Distillation range (190‑205℃)	%	≥95	97.2	GB/T‑6536