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Name |
1,2,4,5-Tetramethylbenzene |
EINECS | 202-465-7 |
CAS No. | 95-93-2 | Density | 0.868 g/cm3 |
PSA | 0.00000 | LogP | 2.92020 |
Solubility | insoluble in water | Melting Point |
78 °C |
Formula | C10 H14 | Boiling Point | 192 °C at 760 mmHg |
Molecular Weight | 134.221 | Flash Point | 73.9 °C |
Transport Information | UN 1325 4.1/PG 2 | Appearance | white crystalline powder |
Safety | 16 | Risk Codes | 11 |
Molecular Structure | Hazard Symbols | F | |
Synonyms |
p-Xylene,2,5-dimethyl- (7CI);Durene;Durol;NSC 6770; |
Article Data | 134 |
Product Name: 1,2,4,5-Tetramethylbenzene (CAS NO.95-93-2)
IUPAC Name: 1,2,4,5-Tetramethylbenzene
Molecular Formula: C10H14
Molecular Weight: 134.22 g/mol
EINECS: 202-465-7
Melting Point: 78 °C
Density: 0.868 g/cm3
Flash Point: 73.9 °C
Boiling Point: 192 °C at 760 mmHg
Index of Refraction: 1.501
Molar Refractivity: 45.55 cm3
Molar Volume: 154.5 cm3
Surface Tension: 28.7 dyne/cm
Enthalpy of Vaporization: 41.07 kJ/mol
Vapour Pressure: 0.696 mmHg at 25°C
Product Categories: Highly Purified Reagents; Other Categories; Zone Refined Products
1,2,4,5-Tetramethylbenzene (CAS NO.95-93-2) is mainly used for preparation of pyromellitic dianhydride, also used in the production of polyimide resins, dyes, plasticizers, surface active agent.
1. | orl-rat LD50:6989 mg/kg | DCTODJ Drug and Chemical Toxicology. 1 (1978),219. | ||
2. | ivn-mus LD50:180 mg/kg | CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#00212 . |
Reported in EPA TSCA Inventory.
Poison by intravenous route. Mildly toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.
Safety Information of 1,2,4,5-Tetramethylbenzene (CAS NO.95-93-2):
Hazard Codes:
F: Flammable
Risk Statements:
R11 Highly flammable.
Safety Statements:
S16 Keep away from sources of ignition - No smoking.
Attentions:
1. Storage: Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
2. Handling: Avoid ingestion and inhalation. Avoid contact with heat, sparks and flame. Avoid contact with eyes, skin, and clothing. Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Use spark-proof tools and explosion proof equipment. Keep container tightly closed. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Keep from contact with moist air and steam.
1,2,4,5-Tetramethylbenzene , its CAS NO. is CAS NO.95-93-2, the synonyms are 1,2,4,5-Tetramethyl-benzen ; 2,5-Dimethyl-p-xylen ; Benzene,1,2,4,5-Tetramethyl- ; I,i,4,5-Tetramcthylben~oiaG ; sym-Tetramethylbenzene ; 1,2,4,5-Tetramethylbenzene .