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Aroclor 1242

Aroclor 1242 structure

CAS No:
53469-21-9
Chemical Name:
Aroclor 1242
Synonyms:
PCB 1242;Aroclor 1242;11104-29-3
Categories:
Analytical Chemistry > Standard

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Description

Clear; mobile liquid; approximately 3.1 chlorine atoms per molecule.

Aroclor 1242 Basic Attributes

Molecular Weight：

Exact Mass：

291.919

Characteristics

PSA：

XLogP3：

Density：

1.381-1.392 g/cm³ @ Temp: 25 °C

Melting Point：

-2°F

Boiling Point：

325-366 °C

Flash Point：

-12 °C

Water Solubility：

(wt %):Benzoic acid(10.0 at 31 °C),pyridine(132.5 at 30 °C),diglycol monoethyl ether(224 at 31 °C),methanol(42.5 at 29 °C),ethanol(23.3 at 29 °C)(Monsanto, 1960)

Storage Conditions：

room temp

Vapor Pressure：

10 at 37.8 °C (calculated, Monsanto, 1960)

Toxicity：

Acute oral LD50 for rats 4,250 mg/kg (quoted, RTECS, 1985).

Flammability characteristics：

Nonflammable Liquid, but exposure in a fire results in the formation of a black soot containing PCBs, polychlorinated dibenzofurans & chlorinated dibenzo-p-dioxins.

Safety Information

Hazard category：

Transport codes：

2315

wgk germany：

hazard class code：

11-38-50/53-65-67-33-36/37/38-22-62-51/53-48/20-39/23/24/25-23/24/25-52/53-45

safety instructions：

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

RTECS Number：

TQ1356000

Marks：

F,Xn,N,Xi,T

Stability/Shelf Life：

PCB's are chemically very inert and are stable to conditions of hydrolysis and oxidation in industrial use. /Polychlorinated biphenyls/

Precautionary statement(s)：

P260, P273, P314, P391, P501

Hazard Statements：

H373

Aroclor 1242 Use and Manufacturing

Dielectric liquids; in fixed paper capacitors; heat-transfer liquid widely used in transformers and utility transmission lines; swelling agents for transmission seals; ingredient in lubricants, oils, and greases; plasticizers for cellulose products, vinyl, and chlorinated rubbers; in polyvinyl acetate to improve fiber-tear properties. In fluorescent and high-intensity discharge ballasts manufactured prior to 1979 (U.S. EPA, 1998) and in electric motors (Monsanto, 1960).
Prior to being banned in 1976, PCB-1254 was used in home appliances including air conditioners, furnaces, washers, and driers. 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. In various nitrocellulose lacquers to impart weather resistance, luster, adhesion, and decreased burning rate. These lacquers may also contain tricresyl phosphate (Monsanto, 1960).

Computed Properties

Molecular Weight:292.0
XLogP3:6.3
Rotatable Bond Count:1
Exact Mass:291.919411
Monoisotopic Mass:289.922361
Heavy Atom Count:16
Complexity:209
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes