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PCB 1248

PCB 1248 structure

CAS No:
12672-29-6
Chemical Name:
PCB 1248
Synonyms:
PCB 1248;Aroclor 1248;A 1248;262371-35-7
Categories:
Analytical Chemistry > Standard

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Description

Viscous, oily, light yellow to yellow-green, mobile, dense, nonflammable liquid with a faint odorViscous oily liquid.

PCB 1248 Basic Attributes

Molecular Weight：

291.98

Exact Mass：

291.919

EC Number：

208-759-1

Characteristics

PSA：

XLogP3：

6.1

Density：

1.405-1.415 g/cm³ @ Temp: 15.5 °C

Melting Point：

340-375 °C

Boiling Point：

340-375 °C

Flash Point：

11 °C

Refractive Index：

1.6130 (estimate)

Water Solubility：

Benzoic acid (10.0 wt % at 32 °C) and paraffin (2.0 wt % at 28 °C) (Monsanto, 1960).H2O: 0.1mg/L(20 ºC)

Storage Conditions：

room temp

Vapor Pressure：

1.835 at 25 °C (estimated using GC retention data, Foreman and Bidleman, 1985)

Toxicity：

Acute oral LD50 for rats 11 g/kg (quoted, RTECS, 1985).

Safety Information

Packing level：

Hazard category：

Transport codes：

2315

wgk germany：

hazard class code：

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

safety instructions：

26-61-60-35-45-36/37-16-7-62-33-29-9-36-53

RTECS Number：

TQ1358000

Marks：

Xi,N,T,F,Xn

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

PCB 1248 Use and Manufacturing

In epoxy resins 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 highintensity discharge ballasts manufactured prior to 1979 (U.S. EPA, 1998).
PCB-1248 and PCB-1254 were used instead of silicone oils in vacuum pumps (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

Computed Properties

Molecular Weight:292.0
XLogP3:6.1
Rotatable Bond Count:1
Exact Mass:291.919411
Monoisotopic Mass:289.922361
Heavy Atom Count:16
Complexity:189
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes