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preface to fifteenth edition

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PRACTICAL LABORATORY INFORMATION 11.15<br />

TABLE 11.10<br />

Substances Which Can Be Used for Heating Baths<br />

Medium<br />

Melting<br />

point,<br />

C<br />

Boiling<br />

point,<br />

C<br />

Useful<br />

range,<br />

C<br />

Flash<br />

point,<br />

C<br />

Comments<br />

Water 0 100 0–100 None Ideal<br />

Silicone oil 50 — 30–250 315 Somewhat viscous at low<br />

temperature<br />

Triethylene glycol 7 285 0–250 165 Noncorrosive<br />

Glycerol 18 290 20 <strong>to</strong> 260 160 Water-soluble, non<strong>to</strong>xic<br />

Paraffin 50 — 60–300 199 Flammable<br />

Dibutyl o-phthalate 35 340 150–320 171 Generally used

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