AROCHLOR 1232 Chemical Properties

Melting point:

47.61°C (estimate)

Boiling point:

286.91°C (rough estimate)

Density 

1.2400 (estimate)

vapor pressure 

4.6 x 10^-3 mmHg at 25 °C (estimated, U.S. EPA, 1980a)

refractive index 

1.5920 (estimate)

Flash point:

146 °C

storage temp. 

-20°C

Water Solubility 

1.45 mg/L at 25 °C (Pal et al., 1980)

Henry's Law Constant

8.64 (calculated, U.S. EPA, 1980a)

Exposure limits

NIOSH REL: TWA 1.0 μg/m³, IDLH 5 mg/m³.

EPA Substance Registry System

Aroclor 1232 (11141-16-5)

Safety Information

Hazard Codes 

N,Xi,Xn,F,T

Risk Statements 

33-50/53-36/37/38-67-65-38-11-62-48/20-39/23/24/25-23/24/25-52/53-45-51/53

Safety Statements 

35-60-61-36/37-26-62-33-29-16-9-45-53

RIDADR 

2315

WGK Germany 

3

RTECS 

TQ1354000

HazardClass 

9

PackingGroup 

II

Hazardous Substances Data

11141-16-5(Hazardous Substances Data)

Toxicity

Acute oral LD50 for rats 4,470 mg/kg (quoted, RTECS, 1985).

AROCHLOR 1232 Usage And Synthesis

Chemical Properties

Viscous, oily, colorless to light yellow, nonflammable, liquid with a faint, aromatic-type odor

Uses

In polyvinyl acetate to improve fiber-tear properties; 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).
May have been added to automotive transmission oils to swell shrunken transmission seals in place (Monsanto, 1960).
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. In polyvinyl acetate emsulsions to impart strong bonding power in adhesives (Monsanto, 1960).

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 skin contact. Mildly toxic by ingestion. 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-oxochlorophenylhexa- 2,4-dieonic acid, chlorobenzoic acid, chlorobenzoylpropionic acid, chlorophenylacetic acid, and 3-chlorophenyl-2-chloropropenic acid (Yagi and Sudo, 1980).
When PCB-1232 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).
Photolytic. PCB-1232 in a 90% acetonitrile/water solution containing 0.2 to 0.3 M sodium borohydride and irradiated with UV light (λ = 254 nm) reacted to yield dechlorinated biphenyls. Without sodium borohydride, the reaction proceeded more slowly (Epling et al., 1988).
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 concentrations of 21, 57, and 22 wt %, respectively. The catalyst used was zinc phthalocyanine (3.5 nM). When PCB-1232 (69 mg), the microemulsion and catalyst were subjected to an electrical current of mA/cm² on 11.2 cm² lead electrode for 12 h, a dechlorination yield of >99.8% was achieved. Reaction products included minor amounts of mono- and dichlorobiphenyls (0.01 mg), biphenyl, and reduced alkylbenzene derivatives.
PCB-1232 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 630, 120, 22, and 4.0 mg/g, respectively (Dobbs and Cohen, 1980).

AROCHLOR 1232(11141-16-5)Related Product Information

• AROCHLOR 5432,AROCHLOR 5460,AROCHLOR 6062,AROCLOR 5442,AROCHLOR 1232,AROCLOR 6040
• polychlorinatedtriphenyl(aroclor5442
• AROCLOR 6040,AROCHLOR 5432,AROCHLOR 5460,AROCHLOR 6062,AROCLOR 5442,AROCHLOR 1232
• 2,2',3,5'-TETRACHLOROBIPHENYL
• 2,2',3,4,4',5',6-HEPTACHLOROBIPHENYL
• 2,2',3,3',4,5,6,6'-OCTACHLOROBIPHENYL
• 2,3,3',4,4',5,5'-HEPTACHLOROBIPHENYL
• 2,3',4-TRICHLOROBIPHENYL
• 2,2',3,3',4,4',5-HEPTACHLOROBIPHENYL
• 2,2',3,3',4,4',6-HEPTACHLOROBIPHENYL
• 2,2',3,3',6,6'-HEXACHLOROBIPHENYL
• 2,2',3,4,4',5,6-HEPTACHLOROBIPHENYL
• 2,3,3',4,4',5-HEXACHLOROBIPHENYL
• 2,2',3,4',5,5',6-HEPTACHLOROBIPHENYL
• 2,2',4,5-TETRACHLOROBIPHENYL
• AROCHLOR 1232 SOLUTION 100UG/ML IN TRANSFORMER OIL 1ML
• AROCHLOR 5460 SOLUTION 100UG/ML IN METHANOL 1ML
• AROCHLOR 1232 SOLUTION 100UG/ML IN METHANOL 5X1ML