Encyclopedia of Environmental Science and Engineering, Volume I and II

920 PCBs AND ASSOCIATED AROMATICS

TABLE 42

PCB replacement fluids and their thermal

decomposition products

PCB replacement fluid Thermal decomposition products

RTEmp benzene, toluene, cyclopentadiene,

phenol, acetic acid

Polydimethylsiloxane cyclic siloxanes, short-chain

hydrocarbons, amorphous silica

Chlorinated benzenes chlorophenols, PCBs, PCDDs, PCDFs,

PCNs, PCDPEs, PCBPs

Tetrachloroethylene HCl, phosgene

Phthalates phthalic anhydride, alkenes, alcohols,

aldehydes

Phenylxylylethane styrene, phenylxylylmethane, phenol,

methylanthracene

n-Propyl-biphenyl dihydrophenanthrene

Iso-propyl-biphenyl biphenyl, biphenylcarboxaldehyde

TABLE 43

Hydrocarbon class analysis of new naphthenic transformer oils

Hydrocarbon class

Gulf

transcrest

Esso univolt

60 Esso univolt

Esso

EEMAC

paraffinic

Sun elect

AH

Shell diala

A

Gulf Canada

hydrotreated

Paraffins iso-/normal 7.9 11.8 20.1 22.7 5.7 7.2 20.2

Monocyclo-paraffins 15.5 17.9 26.7 23.7 11.7 22.5 28.6

Condensed cycloparaffins 39.9 42.1 32.8 32.6 46.3 62.5 50.6

Total Saturated compounds 63.3 71.8 79.6 78.6 63.7 92.2 89.4

Monoalkyl benzenes 7.2 6.9 5.7 5.7 6.8 1.5 0.0

Indans/benzocyclo paraffins 8.9 6.9 5.2 5.2 8.4 2.0 0.2

Benzocyclo paraffins 7.8 6.3 4.0 4.2 8.3 2.4 0.4

Total Monoaromatics 23.9 20.1 14.9 15.1 23.5 5.9 0.6

Naphthalenes 6.0 4.4 2.8 3.2 6.5 1.4 —

Biphenyls/Naphthocyclo-paraffins 2.5 1.6 1.3 1.5 2.6 0.3 —

Fluorenes/Naphthobicyclo-paraffins 2.4 1.2 1.1 1.1 1.4 0.1 —

Total Diaromatics 10.9 7.2 5.2 5.8 11.0 1.8 —

Phenanthrenes/Anthracenes 0.7 0.3 0.1 0.2 0.5 — —

Total Triaromatics 8.0 0.4 0.1 0.2 0.5 — —

Total thiophenes 0.0 0.0 0.0 0.2 0.3 — —

Furans/Benzofurans 0.8 0.5 0.0 0.0 0.7 — —

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