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tetrachloroethylene basic information
tetrachloroethylene chemical properties |
mp | -22 °c |
bp | 121 °c(lit.) |
density | 1622.69±0.01 kg/m3 at 20 °c (range 10-50°c) |
vapor density | 5.83 (vs air) |
vapor pressure | 13 mm hg ( 20 °c) |
refractive index | n20/d 1.505(lit.) |
fp | 120-121°c |
storage temp. | 0-6°c |
freezingpoint | -22.0℃ |
merck | 14,9190 |
brn | 1361721 |
stability: | stable. incompatible with strong oxidizing agents, alkali metals, aluminium, strong bases. |
cas database reference | 127-18-4(cas database reference) |
nist chemistry reference | tetrachloroethylene(127-18-4) |
epa substance registry system | ethene, tetrachloro-(127-18-4) |
safety information |
hazard codes | xn,n,t,f |
risk statements | 40-51/53-23/25-11-39/23/24/25-23/24/25 |
safety statements | 23-36/37-61-45-24-16-7 |
ridadr | un 1897 6.1/pg 3 |
wgk germany | 3 |
rtecs | kx3850000 |
hazardclass | 6.1 |
packinggroup | iii |
hs code | 29032300 |
hazardous substances data | 127-18-4(hazardous substances data) |
tetrachloroethylene usage and synthesis |
chemical properties | colourless liquid with ether-like odour |
usage | features high transparancy in the mir region and is a less toxic alternative to ccl4 in ir spectroscopy. |
general description | a clear colorless volatile liquid having an ether-like odor. noncombustible. insoluble in water. vapors heavier than air. density approximately 13.5 lb / gal. used as dry cleaning solvent, a degreasing solvent, a drying agent for metals, and in the manufacture of other chemicals. |
air & water reactions | insoluble in water. |
reactivity profile | tetrachloroethylene decomposes upon heating and exposure to uv light to give phosgene and hcl. reacts violently with finely dispersed light metals (aluminum) and zinc. [handling chemicals safely 1980 p. 887]. mixtures with finely divided barium or lithium metal can detonate [asesb pot. incid. 39. 1968; chem. eng. news 46(9):38. 1968]. decomposes very slowly in water to form trichloroacetic acid and hydrochloric acid |
health hazard | vapor can affect central nervous system and cause anesthesia. liquid may irritate skin after prolonged contact. may irritate eyes but causes no injury. |
fire hazard | special hazards of combustion products: toxic, irritating gases may be generated in fires. |