1,2,3-TRIMETHYLBENZENE

PRODUCT IDENTIFICATION
CAS NO. 526-73-8

1,2,3-TRIMETHYLBENZENE
EINECS NO. 208-394-8
FORMULA C6H3(CH3)3
MOL WT. 120.20

H.S. CODE

 2902.90
TOXICITY  
SYNONYMS Hemimellitene; 1,2,3-Trimethylbenzol (German);
1,2,3-Trimetilbenceno (Spanish); 1,2,3-Triméthylbenzène (French); Hemellitol;
SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE clear liquid
MELTING POINT -25 C
BOILING POINT 175 - 176 C
SPECIFIC GRAVITY 0.894
SOLUBILITY IN WATER Slightly soluble (miscible with alcohol, benzene, ether)
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

 Health: 1; Flammability: 2 ; Reactivity: 0

REFRACTIVE INDEX

 1.5139
FLASH POINT 48 C
STABILITY Stable under ordinary conditions

APPLICATIONS
There are three isomeric compounds of trimethyl benzene, which all have trivial names respectively. The 1,2,3- isomer is called Hemellitol (or Hemimellitene) ; 1,2,4- isomer is called Pseudocumene; 1,3,5- isomer is called Mesitylene (or Mesitelene).  They are prepared from petroleum and coal tar and used as solvents for resins, gums, and nitrocellulose. and used as intermediates for the manufacturing other chemical compounds.

Alkyl substituted benzene derivatives

Name

Systemic name

CAS RN

M.P กษ

B.P กษ
Toluene Methylbenzene 108-88-3 -93 110.6
Ethylbenzene

 

 100-41-4 -94.9

136

n-Propylbenzene

 Propylbenzene 103-65-1 -101.6 159
n-Butylbenzene Butylbenzene 104-51-8

-88

183
Cumene Isopropylbenzene 98-82-8

-96

151
o-Xylene 1,2-Dimethylbenzene 95-47-6 -25.2 144
m-Xylene 1,3-Dimethylbenzene 108-38-3 -47.9 139
p-Xylene 1,4-Dimethylbenzene 106-42-3 13.3 138.3
Hemimellitene 1,2,3-Trimethylbenzene 95-36-3

 

 
Mesitylene 1,3,5-Trimethylbenzene 108-67-8 -44.7 165
Pseudocumene 1,2,4-Trimethylbenzene 95-63-6 -43.8 169
o-Ethyltoluene 1-Methyl-2-ethylbenzene 611-14-3

-17

154
m-Ethyltoluene 1-Methyl-3-ethylbenzene 620-14-4

 

161
p-Ethyltoluene 1-Methyl-4-ethylbenzene 622-96-8

-62

162
o-Diethylbenzene 1,2-Diethylbenzene 135-01-3 -31

183
m-Diethylbenzene 1,3-Diethylbenzene 141-93-5 -84 181
p-Diethylbenzene 1,4-Diethylbenzene 105-05-5 -43 184
o-Propyltoluene 1-Methyl-2-n-propylbenzene 1074-17-5

 

185
m-Propyltoluene 1-Methyl-3-n-propylbenzene 1074-43-7

 

182
o-Propyltoluene 1-Methyl-4-n-propylbenzene 1074-55-1

-64

183
o-Cymene 1-Methyl-2-isopropylbenzene 527-84-4 -71 178

m-Cymene

 1-Methyl-3-isopropylbenzene 535-77-3 -64 175
p-Cymene 1-Methyl-4-isopropylbenzene 99-87-6 -67 176
o-Diisopropylbenzene 1,2-Diisopropylbenzene 577-55-9

 

204
m-Diisopropylbenzene 1,3-Diisopropylbenzene 99-62-7

-63

203
p-Diisopropylbenzene 1,4-Diisopropylbenzene 100-18-5

-17

203
o-Butyltoluene 1-Butyl-2-methylbenzene 1595-11-5

 

 
m-Butyltoluene 1-Butyl-3-methylbenzene 1595-04-6

 

205
p-Butyltoluene 1-Butyl-4-methylbenzene 1595-05-7

 

207

o-Dibutylbenzene

 1,2-Dibutylbenzene

 

 

 

m-Dibutylbenzene

 1,3-Dibutylbenzene 17171-74-3

 

 

p-Dibutylbenzene

 1,4-Dibutylbenzene 1571-86-4

 

 
tert-Butylbenzene

 

 98-06-6

-58

169
1,2,4,5-Tetra-tert-butylbenzene

 

 796-97-4

 

 
o-Di-tert-Butylbenzene 1,2-Di-tert-butylbenzene 3370-28-3

 

 

m-Di-tert-Butylbenzene

 1,3-Di-tert-butylbenzene 3370-27-2

 

 
p-Di-tert-Butylbenzene 1,4-Di-tert-butylbenzene 1012-72-2

75

236
4-tert-Butyltoluene 1-Methyl-4-tert-butylbenzene 98-51-1

-52

193
5-tert-Butyl-m-xylene 1,3-Dimethyl-5-tert-butylbenzene 98-19-1

-18

205
Prehnitene 1,2,3,4-Tetramethylbenzene 488-23-3

-6

205
Durene 1,2,4,5-Tetramethylbenzene 95-93-2

76

197
Isodurene 1,2,3,5-Tetramethylbenzene 527-53-7

-24

198
Mellitene Hexamethylbenzene 87-85-4

164

264
Hexaethylbenzene

 

 604-88-6

129

298
Hexadecylbenzene

 

 1459-09-2

27

385
SALES SPECIFICATION

APPEARANCE

clear liquid

CONTENT

90.0% min
SPECIFIC GRAVITY 0.891 - 0.898

TRANSPORTATION
PACKING 170kgs in drum
HAZARD CLASS 3 (Packing group: III)
UN NO. 1993
OTHER INFORMATION
Hazard Symbols: XI F, Risk Phrases: 10-37-51/53, Safety Phrases: 9-16-26-28A-33-37-37/39-45