| Identification | More | [Name]
PENTACHLOROBENZENE | [CAS]
608-93-5 | [Synonyms]
PENTACHLOROBENZENE
1,2,3,4,5-Pentachlorobenzene
pentachloro-benzen
QCB
Rcra waste number U183
rcrawastenumberu183
PENTACHLOROBENZENE 1000MG NEAT
PENTACHLOROBENZENE, 1X1ML, CH2CL2, 200UG /ML
PENTACHLORBENZOL PESTANAL
PENTACHLOROBENZENE 98+%
Benzene, pentachloro-
pentachlorobenzene solution
Pentachlorbenzol
PENTACHLOROBENEZENE | [EINECS(EC#)]
210-172-0 | [Molecular Formula]
C6HCl5 | [MDL Number]
MFCD00000539 | [Molecular Weight]
250.34 | [MOL File]
608-93-5.mol |
| Chemical Properties | Back Directory | [Appearance]
Pentachlorobenzene is a colorless crystalline
solid. Pleasant aroma. | [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. ]
0-6°C | [solubility ]
Very soluble in ether (Sax and Lewis, 1987) | [form ]
neat | [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) | [CAS DataBase Reference]
608-93-5(CAS DataBase Reference) | [EPA Substance Registry System]
Pentachlorobenzene (608-93-5) |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xn,N | [Risk Statements ]
R11:Highly Flammable.
R22:Harmful if swallowed.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R40:Limited evidence of a carcinogenic effect. | [Safety Statements ]
S41:In case of fire and/or explosion do not breathe fumes .
S46:If swallowed, seek medical advice immediately and show this container or label .
S50:Do not mix with ... (to be specified by the manufacturer) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37:Wear suitable protective clothing and gloves .
S24/25:Avoid contact with skin and eyes .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) . | [RIDADR ]
UN 3077 9/PG 3
| [WGK Germany ]
3
| [RTECS ]
DA6640000
| [Safety Profile]
Moderately toxic by ingestion. An experimental teratogen. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORINATED HYDROCARBONS, AROMATIC | [Hazardous Substances Data]
608-93-5(Hazardous Substances Data) | [Toxicity]
LC50 (14-day) for guppy 178 ppb (Verschueren, 1983); acute oral LD50 for rats
1,080 mg/kg (RTECS, 1985) |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Tetrachlorophthalic acid | [Preparation Products]
Tetrachlorvinphos-->1,3,5-Trichlorobenzene-->2,2',3,3',4,5,5',6-OCTACHLOROBIPHENYL-->2,3,5,6-TETRACHLOROPHENOL-->2,2',3,4,4',5,6,6'-OCTACHLOROBIPHENYL-->2,2',3,3',4,4',5,5',6-NONACHLOROBIPHENYL-->Pentachlorophenol |
| Hazard Information | Back Directory | [General Description]
White crystals. | [Reactivity Profile]
PENTACHLOROBENZENE(608-93-5) is relatively unreactive. May be incompatible with strong oxidizing and reducing agents. Also may be incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. | [Air & Water Reactions]
Insoluble in water. | [Potential Exposure]
Pentachlorobenzene is used primarily
as a precursor in the synthesis of the fungicide pentachloronitrobenzene, and as a flame retardant. Drug/
Therapeutic Agent; Fungicide; bactericide; wood preservative;
industrial Insecticides. | [Fire Hazard]
Flash point data for this compound are not available but PENTACHLOROBENZENE is probably non-flammable. | [First aid]
Skin Contact: Flood all areas of body that
have contacted the substance with water. Don’t wait to
remove contaminated clothing; do it under the water
stream. Use soap to help assure removal. Isolate contaminated
clothing when removed to prevent contact by others.
Eye Contact: Remove any contact lenses at once. Flush
eyes well with copious quantities of water or normal saline
for at least 2030 minutes. Seek medical attention.
Inhalation: Leave contaminated area immediately; breathe
fresh air. Proper respiratory protection must be supplied to
any rescuers. If coughing, difficult breathing or any other
symptoms develop, seek medical attention at once, even
if symptoms develop many hours after exposure. Ingestion:
If convulsions are not present, give a glass or two of water
or milk to dilute the substance. Assure that the person’s
airway is unobstructed and contact a hospital or poison
center immediately for advice on whether or not to induce
vomiting. | [Shipping]
UN3077 Environmentally hazardous substances,
solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous
hazardous material, Technical Name Required. | [Incompatibilities]
Polychlorinated hydrocarbons Incompatible
with oxidizers (chlorates, nitrates, peroxides, permanganates,
perchlorates, chlorine, bromine, fluorine, etc.);
contact may cause fires or explosions. Keep away from
alkaline materials, strong bases, strong acids, oxoacids,
epoxides, aluminum, liquid oxygen; potassium, sodium. | [Chemical Properties]
Pentachlorobenzene is a colorless crystalline
solid. Pleasant aroma. | [Waste Disposal]
Consult with environmental
regulatory agencies for guidance on acceptable disposal
practices. Generators of waste containing this contaminant
(≥100 kg/mo) must conform with EPA regulations governing
storage, transportation, treatment, and waste disposal.
Incineration after mixing with another combustible fuel.
Care must be exercised to assure complete combustion to
prevent the formation of phosgene. An acid scrubber is necessary
to remove the halo acids produced. | [Uses]
Agrochemical researc | [Uses]
It was used to prepare tetrachlorobenzene by photolysis. | [Definition]
ChEBI: A member of the class of pentachlorobenzenes that is benzene in which five of the hydrogens are replaced by chlorines. Now classed as a persistent organic pollutant under the Stockholm Convention. | [Synthesis Reference(s)]
The Journal of Organic Chemistry, 38, p. 2928, 1973 DOI: 10.1021/jo00957a002 | [Source]
Pentachlorobenzene may enter the environment from leaking dielectric fluids containing
this compound. Pentachlorobenzene may be present as an undesirable by-product in the chemical
manufacture of hexachlorobenzene, pentachloronitrobenzene, tetrachloroenzenes, tetrachloroethylene,
trichloroethylene, and 1,2-dichloroethane (U.S. EPA, 1980). | [Environmental Fate]
Biological. In activated sludge, <0.1% mineralized to carbon dioxide after 5 days
(Freitag et al., 1985). From the first-order biotic and abiotic rate constants of pentachlorobenzene in estuarine water and sediment/water systems, the estimated biodegradation
half-lives were 4.6–6.5 and 6.0–7.6 days, respectively (Walker et al., 1988)
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, all
tetra-, tri- and dichlorobenzenes, chlorobenzene, benzene, phenol, hydrogen and chloride
ions (Chu and Jafvert, 1994) |
|
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Energy Chemical
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http://www.energy-chemical.com |
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BEST-REAGENT
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