Home Categories Chemical Reagents 1,2,3-Trimethylbenzene
A7715112

1,2,3-Trimethylbenzene , Analysis standard , 526-73-8

Synonym(s):
Hemellitol

CAS NO.:526-73-8

Empirical Formula: C9H12

Molecular Weight: 120.19

MDL number: MFCD00008520

EINECS: 208-394-8

Update time: 2022-07-08

PRODUCT Properties

Melting point: −25 °C(lit.)
Boiling point: 175-176 °C(lit.)
Density  0.894 g/mL at 25 °C(lit.)
vapor density  4.15 (vs air)
vapor pressure  3.4 mm Hg ( 37.7 °C)
refractive index  n20/D 1.513(lit.)
Flash point: 119 °F
solubility  Soluble in acetone, alcohol, benzene, and ether (Weast, 1986)
pka >14 (Schwarzenbach et al., 1993)
color  Colorless to Light yellow
Odor Threshold 0.032ppm
Water Solubility  65.51mg/L(25 ºC)
BRN  1903410
Henry's Law Constant 3.18 at 25 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits NIOSH REL: TWA 25 ppm (125 mg/m3); ACGIH TLV: TWA for mixed isomers 25 ppm (adopted).
Dielectric constant 2.6600000000000001
Stability: Stable. Flammable. Incompatible with strong oxidizing agents.
LogP 3.660

Description and Uses

Raw material for chemical synthesis.

Safety

Symbol(GHS) 
GHS02,GHS07
Signal word  Warning
Hazard statements  H226-H315-H319-H335
Precautionary statements  P210-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  10-37-36/37/38
Safety Statements  16-26
RIDADR  UN 3295 3/PG 3
OEB A
OEL TWA: 25 ppm (125 mg/m3)
WGK Germany  3
RTECS  DC3300000
Autoignition Temperature 878 °F
HazardClass  3.2
PackingGroup  III
HS Code  2902900000

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