PENTACHLOROBENZENE manufacturers and suppliers

PENTACHLOROBENZENE suppliers

Properties

Melting point:: 84-87 °C (lit.)

Boiling point:: 275-277 °C (lit.)

Density: 1.609 g/mL at 25 °C (lit.)

vapor pressure: 6 x 10^-3 mmHg at 20–30 °C (quoted, Mercer et al., 1990)

refractive index: 1.5522 (estimate)

storage temp.: 2-8°C

solubility: Very soluble in ether (Sax and Lewis, 1987)

color: White needles

Water Solubility: 1.332mg/L(25 ºC)

BRN: 1911550

Henry's Law Constant: 5.14 at 25 °C (continuous flow sparger, Sproule et al., 1991)

Safety Information

Symbol(GHS): GHS02,GHS07,GHS09

Signal word: Danger

Hazard statements: H228-H302-H410

Precautionary statements: P210-P240-P241-P264-P273-P301+P312

Hazard Codes: F,Xn,N

Risk Statements: 11-22-50/53-40-67-36/37/38

Safety Statements: 41-46-50-60-61-36/37-24/25-23

RIDADR: UN 3077 9/PG 3

WGK Germany: 3

RTECS: DA6640000

Toxicity: LC50 (14-day) for guppy 178 ppb (Verschueren, 1983); acute oral LD50 for rats 1,080 mg/kg (RTECS, 1985)

Use

Biological. In activated sludge, Photolytic. UV irradiation (λ = 2537 ?) of pentachlorobenzene in a hexane solution for 3 hours produced a 50% yield of 1,2,4,5-tetrachlorobenzene and a 13% yield of 1,2,3,5- tetrachlorobenzene (Crosby and Hamadmad, 1971). Irradiation (λ ≥285 nm)A carbon dioxide yield of 2.0% was achieved when pentachlorobenzene adsorbed on silica gel was irradiated with light (λ >290 nm) for 17 hours (Freitag et al., 1985).The experimental first-order decay rate for pentachlorobenzene in an aqueous solution containing a nonionic surfactant micelle (Brij 58, a polyoxyethylene cetyl ether) and illuminated by a photoreactor equipped with 253.7-nm monochromatic UV lamps, is 1.47 × 10–2/sec. The corresponding half-life is 47 seconds. Photoproducts reported include, alltetra-, tri- and dichlorobenzenes, chlorobenzene, benzene, phenol, hydrogen and chloride ions (Chu and Jafvert, 1994)

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