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Basic Information
| CAS No.: | 3333-52-6 |
|---|---|
| Name: | TETRAMETHYLSUCCINONITRILE |
| Article Data: | 18 |
| Molecular Structure: | |
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| Formula: | C8H12 N2 |
| Molecular Weight: | 136.197 |
| Synonyms: | Butanedinitrile,tetramethyl- (9CI); Succinonitrile, tetramethyl- (6CI,7CI,8CI);2,2,3,3-Tetramethylbutanedinitrile; 2,2,3,3-Tetramethylsuccinonitrile;2,3-Dicyano-2,3-dimethylbutane; NSC 39746; Tetramethylsuccinic acid dinitrile;Tetramethylsuccinodinitrile; Tetramethylsuccinonitrile |
| Density: | 0.923g/cm3 |
| Melting Point: | 168°C |
| Boiling Point: | 264.2°Cat760mmHg |
| Flash Point: | 116.4°C |
| Solubility: | Insoluble in water |
| Hazard Symbols: | Toxic by inhalation and skin contact. TLV: 0.5 ppm. |
| Risk Codes: | 23/24/25-36/37/38-48/20/21 |
| Safety: | Poison by ingestion, intraperitoneal, and intravenous routes. An experimental teratogen. A human skin irritant and allergen. In the preparation of sponge rubber, an azo compound is used that decomposes to form tetramethylsuccinonitrile or TMSN. Rats exposed to a concentration of 90 ppm exhibit their first convulsion after 1.5–2 hours or less. Rats exposed to concentration of 5.5 ppm exhibited their first convulsions in 27–31 hours and were dead in 31–46 hours. Absorbed by skin. The fatal dose in humans is thought to be about 25 mg/kg of body weight. TSN is slowly detoxified by the body. This nitrile is different from other nitriles in that thiosulfate is a poor antidote for intoxication. When heated to decomposition it emits toxic fumes of CN− and NOx. See also NITRILES and CYANIDE. |
| PSA: | 47.58000 |
| LogP: | 2.08596 |
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TETRAMETHYLSUCCINONITRILE
Chemistry
The molecular formula of TETRAMETHYLSUCCINONITRILE (3333-52-6) is C8H12N2 and its formula weight is 136.22g/mol.The appearance of TETRAMETHYLSUCCINONITRILE (3333-52-6) almost is no odor crystallizes.The density of TETRAMETHYLSUCCINONITRILE (3333-52-6) is 0.923g/cm3 and it has a melting point of 168°C.The boiling point is 264.2°C at 760mmHg.The refractive index is about 1.44 and molar refractivity is 38.87 cm3.Molar volume is 147.4 cm3 and polarizability is 15.4 10-24cm3.Surface tension is 34.4 dyne/cm and enthalpy of vaporization is 50.21 kJ/mol.Its flash point is 116.4 °C and the vapor pressure is 0.00982 mmHg at 25°C .
The chemical synonyms of TETRAMETHYLSUCCINONITRILE (3333-52-6) are 2,2,3,3-Tetramethylsuccinonitrile;Butanedinitrile, tetramethyl-;butanedinitrile,tetramethyl-;Butanedinitrile,tetramethyl-(9CI);cp75475;Succinonitrile, tetramethyl-;succinonitrile,tetramethyl- and tetramethyl-butanedinitril.Its product categories is Dinitriles;Dinitriles & Trinitriles. The molecular structure of TETRAMETHYLSUCCINONITRILE(3333-52-6) is
.
The chemical synonyms of TETRAMETHYLSUCCINONITRILE (3333-52-6) are 2,2,3,3-Tetramethylsuccinonitrile;Butanedinitrile, tetramethyl-;butanedinitrile,tetramethyl-;Butanedinitrile,tetramethyl-(9CI);cp75475;Succinonitrile, tetramethyl-;succinonitrile,tetramethyl- and tetramethyl-butanedinitril.Its product categories is Dinitriles;Dinitriles & Trinitriles. The molecular structure of TETRAMETHYLSUCCINONITRILE(3333-52-6) is
.Toxicity Data With Reference
| 1. | ipr-ham TDLo:9944 µg/kg (8D preg):TER | FAATDF Fundamental and Applied Toxicology. 3 (1983),41. | ||
| 2. | orl-rat LD50:38,900 µg/kg | FAATDF Fundamental and Applied Toxicology. 7 (1986),41. | ||
| 3. | ipr-mus LD50:17,710 µg/kg | JPETAB Journal of Pharmacology and Experimental Therapeutics. 223 (1982),635. | ||
| 4. | ivn-mus LD50:18 mg/kg | CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#00002 . |
Consensus Reports
Cyanide and its compounds are on the Community Right-To-Know List.
Safety Profile
Poison by ingestion, intraperitoneal, and intravenous routes. An experimental teratogen. A human skin irritant and allergen. In the preparation of sponge rubber, an azo compound is used that decomposes to form tetramethylsuccinonitrile or TMSN. Rats exposed to a concentration of 90 ppm exhibit their first convulsion after 1.5–2 hours or less. Rats exposed to concentration of 5.5 ppm exhibited their first convulsions in 27–31 hours and were dead in 31–46 hours. Absorbed by skin. The fatal dose in humans is thought to be about 25 mg/kg of body weight. TSN is slowly detoxified by the body. This nitrile is different from other nitriles in that thiosulfate is a poor antidote for intoxication. When heated to decomposition it emits toxic fumes of CN− and NOx. See also NITRILES and CYANIDE. Risk statements is 23/24/25-36/37/38 .
Safety statements is 26-36/37/39.
HazardClass is 6.1(a).
Safety statements is 26-36/37/39.
HazardClass is 6.1(a).
Standards and Recommendations
OSHA PEL: TWA 0.5 ppm (skin)
ACGIH TLV: TWA 0.5 ppm (skin)
DFG MAK: 0.5 ppm (2.8 mg/m3)
NIOSH REL: (Nitriles) CL 6 mg/m3/15M
ACGIH TLV: TWA 0.5 ppm (skin)
DFG MAK: 0.5 ppm (2.8 mg/m3)
NIOSH REL: (Nitriles) CL 6 mg/m3/15M
Specification
Its extinguishing agent is carbon dioxide, sand and dry powder.