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| | AROCHLOR 1221 Basic information |
| | AROCHLOR 1221 Chemical Properties |
| Melting point | 42.93°C (estimate) | | Boiling point | 245.17°C (rough estimate) | | density | 1.1500 (estimate) | | vapor pressure | 7 x 10-3 mmHg at 25 °C (Pal et al., 1980) | | refractive index | 1.5830 (estimate) | | Fp | 146 °C | | storage temp. | room temp | | solubility | Soluble in most solvents (U.S. EPA, 1985) particular chlorinated hydrocarbons, e.g., chloroform,
carbon tetrachloride, etc. | | Water Solubility | 434.4mg/L(25 ºC) | | Henry's Law Constant | 0.286, 0.452, 0.697, 1.06, 1.57, 2.28, 3.26, 4.83, and 6.68 at 0.0, 5.0, 10.0, 15.0, 20.0, 25.0, 30.0,
35.5, and 40.0 °C, respectively (predicted, Burkhard et al., 1985) | | Exposure limits | Potential occupational carcinogen. NIOSH REL: TWA 1.0 μg/m3, IDLH 5
mg/m3. | | EPA Substance Registry System | Aroclor 1221 (11104-28-2) |
| | AROCHLOR 1221 Usage And Synthesis |
| Chemical Properties | Viscous, oily, colorless to light yellow, mobile liquid with a faint, characteristic, aromatic-type
odor | | Uses | In polyvinyl acetate to improve fiber-tear properties; plasticizer for polystyrene; in epoxy
resins and polyvinyl acetate to improve adhesion and resistance to chemical attack; as an insulator
fluid for electric condensers and as an additive in very high pressure lubricants. In fluorescent and
high-intensity discharge ballasts manufactured prior to 1979 (U.S. EPA, 1998).
At a concentration of 5 to 25 wt %, increased the effective kill-life of the lindane spray up to 10
times. May have been used in chlordane and BHC insecticide formulations (Monsanto, 1960). | | Definition | ChEBI: 3-chlorobiphenyl is a monochlorobiphenyl. | | General Description | Viscous oily liquid. | | Air & Water Reactions | Insoluble in water. | | Reactivity Profile | Simple aromatic halogenated organic compounds are very unreactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. | | Health Hazard | ACUTE/CHRONIC HAZARDS: Toxic irritant. Hazardous decomposition products. | | Fire Hazard | Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot. | | Safety Profile | Suspected human
carcinogen. Moderately toxic by ingestion
and skin contact. Experimental reproductive
effects. When heated to decomposition it
emits toxic fumes of Cl-. Used in heat
transfer, hydraulic fluids, lubricants, and
insecticides. See also
POLYCHLORINATED BIPHENYLS. | | Environmental fate | Biological. Reported degradation products by the microorganism Alcaligenes BM-2 for a
mixture of polychlorinated biphenyls include monohydroxychlorobiphenyl, 2-hydroxy-6-
oxochlorophenyl-hexa-2,4-dieonic acid, chlorobenzoic acid, chlorobenzoylpropionic acid,
chlorophenylacetic acid, and 3-chlorophenyl-2-chloropropenic acid (Yagi and Sudo, 1980).
In sewage wastewater, Pseudomonas sp. 7509 degraded PCB-1221 into a yellow compound
tentatively identified as a chlorinated derivative of α-hydroxymuconic acid (Liu, 1981). When
PCB-1221 was statically incubated in the dark at 25 °C with yeast extract and settled domestic
wastewater inoculum for 7 d, significant biodegradation with rapid adaptation was observed
(Tabak et al., 1981).
In activated sludge, 80.6% degraded after a 47-h time period (Pal et al., 1980).
Chemical/Physical. Zhang and Rusling (1993) evaluated the bicontinuous microemulsion of
surfactant/oil/water as a medium for the dechlorination of polychlorinated biphenyls by
electrochemical catalytic reduction. The microemulsion (20 mL) contained didodecyldimethylammonium
bromide, dodecane, and water at 21, 57, and 22 wt %, respectively. The catalyst
used was zinc phthalocyanine (2.5 nM). When PCB-1221 (72 mg), the emulsion and catalyst were
subjected to a current of mA/cm2 on 11.2 cm2 lead electrode for 10 h, a dechlorination yield of
99% was achieved. Reaction products included a monochlorobiphenyl (0.9 mg), biphenyl, and
reduced alkylbenzene derivatives.
PCB-1221 will not hydrolyze to any reasonable extent (Kollig, 1993).
At influent concentrations of 1.0, 0.1, 0.01, and 0.001 mg/L, the GAC adsorption capacities were
242, 48, 9.5, and 1.9 mg/g, respectively (Dobbs and Cohen, 1980). |
| | AROCHLOR 1221 Preparation Products And Raw materials |
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