| Identification | Back Directory | [Name]
AROCHLOR 1221 | [CAS]
11104-28-2 | [Synonyms]
PCB-1221
AROCLOR 1221
AROCHLOR 1221
PCB Aroclor 1221
aroclor 1221 solution
chlorodiphenyl(21%cl)
Aroclor 1221 (PCB 1221)
AROCLOR 1221, 50MG, NEAT
[40cfr136(1986)]pcb-1221
Aroclor1221Solution,1mg/L,1ml
Aroclor1221Solution,1mg/L,5ml
Aroclor1221Solution,2mg/L,1ml
Aroclor1221Solution,5mg/L,10ml
Aroclor 1221 @35 μg/mL in MeOH
Arochlor 1221 1g [11104-28-2]
Aroclor1221Solution,20mg/L,10ml
Aroclor1221Solution,1mg/L,4x1ml
Aroclor1221Solution,0.1mg/L,2ml
Aroclor1221Solution,200mg/L,1ml
Aroclor 1221 @100 μg/mL in MeOH
Aroclor1221Solution,1mg/L,4x2ml
Aroclor1221Solution,100mg/L,1ml
Aroclor1221Solution,100mg/L,25ml
Aroclor1221Solution,1,000mg/L,1ml
Aroclor1221Solution,100mg/L,5x1ml
Polychlorinated biphenyl (21% Cl)
Aroclor 1221@1000 μg/mL in Hexane
Aroclor1221Solution,1,000mg/L,25ml
Aroclor 1221@35 μg/mL in Isooctane
AROCLOR 1221, 1X1ML, MEOH, 200UG/ML
AROCLOR 1221, 1X1ML, MEOH, 1000UG/ML
polychlorinatedbiphenyl(aroclor1221)
Aroclor 1221 @1000 μg/mL in Methanol
Aroclor1221Solution,1,000mg/L,2x0.6ml
PCB Aroclor 1221 @1000 μg/mL in Isooctane
Aroclor 1221@50 ppm w/w in Transformer oil
AROCLOR 1221, 1X1ML, ISOOCTANE, 1000UG/M L
Aroclor1221SecondSourceSolution,200mg/L,1ml
Aroclor 1221@500 ppm w/w in Transformer oil
AROCLOR 1221, 1X5ML, TRANSFORMER OIL, 50 MG/KG
AROCLOR 1221, 1X5ML, TRANSFORMER OIL 500 MG/KG
Aroclor1221SolutioninTransformerOil,500mg/L,1ml
Aroclor1221SolutioninTransformerOil,500mg/L,5ml
aroclor 1221, 21perc.cl, pcb c12h9cl and c12h8cl2
Polychlorinated biphenyl (Aroclor 1221): (Chlorodiphenyl (21% Cl)) | [Molecular Formula]
N/A | [MDL Number]
MFCD01779888 |
| Chemical Properties | Back Directory | [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) |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xn,N,T,Xi | [Risk Statements ]
11-33-38-48/20-51/53-62-65-67-50/53-39/23/24/25-23/24/25-36/37/38-45-52/53 | [Safety Statements ]
36/37-61-62-60-35-45-36-26-16-7-53 | [RIDADR ]
2315 | [WGK Germany ]
3 | [RTECS ]
TQ1352000 | [HazardClass ]
9 | [PackingGroup ]
II | [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. | [Hazardous Substances Data]
11104-28-2(Hazardous Substances Data) | [Toxicity]
Drinking water standard (final): For all PCBs, the MCLG and MCL are zero and 0.5 μg/L,
respectively (U.S. EPA, 2000). |
| Hazard Information | Back Directory | [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. | [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. | [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). |
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