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Gas properties Std enthalpy change of formation, Δ f H o gas –95.98 kJ/mol Standard molar entropy, S o gas: 309.65 J/(mol K) Heat capacity, c p: 82.65 J/(mol K) van der Waals' constants [3] a = 2066 L 2 kPa/mol 2 b = 0.1383 liter per mole
Since carbon tetrachloride freezes at –23 °C, the fire extinguishers would contain only 89-90% carbon tetrachloride and 10% trichloroethylene (m.p. –85 °C) or chloroform (m.p. –63 °C) for lowering the extinguishing mixture's freezing point down to temperatures as low as –45 °C.
This was a problem as carbon tetrachloride is an effective fire suppressant and was formerly in widespread use in fire extinguishers. [15] There are reports of fatalities caused by its use to fight fires in confined spaces. [16] Carbon tetrachloride's generation of phosgene and its own toxicity mean it is no longer used for this purpose. [15]
Gas properties Std enthalpy change ... for Trichlorethylene/Carbon tetrachloride [7] P = 760 mmHg BP Temp. °C % by mole CCl 4; ... 90.8: 74.5 80.5: 94.1: 80.1 81.3 ...
Chloroform, [10] or trichloromethane (often abbreviated as TCM), is an organochloride with the formula C H Cl 3 and a common solvent.It is a volatile, colorless, sweet-smelling, dense liquid produced on a large scale as a precursor to refrigerants and PTFE. [11]
CAS number CAgO carbonylsilver: CCl 2 F 2: dichlorodifluoromethane freon-12: 75-71-8 CCl 4: carbon tetrachloride tetrachloromethane: 56-23-5 C(CN) 4: tetracyanomethane: 24331-09-7 CFCl 3: trichlorofluoromethane freon-11: 75-69-4 CFCl 2 CF 2 Cl: chlorotrifluoromethane freon-13: 75-72-9 CHCl 3: chloroform trichloromethane methyl trichloride: 67 ...
For example, R-22 has one carbon atom, one hydrogen atom (2−1 = 1), two fluorine atoms, and one chlorine atom (4−2−1 = 1), so it is chlorodifluoromethane, while R-134 has two carbon atoms (2−1 = 1), two hydrogen atoms (3−1 = 2), four fluorine atoms, and no chlorine atoms (6−2−4 = 0), so it is one of the tetrafluoroethanes. This ...
39.75 °C (103.55 °F; 312.90 K) at 760 ... and carbon tetrachloride as well as ... it was fetotoxic at doses that were maternally toxic but no teratogenic ...