Chemistry Reference
In-Depth Information
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Figure 8.26
Total ion chromatogram of a pure lighter fluid standard sampled
by SPME. Peak identification: (a) 3-methylhexane; (b) 2-methyheptane; (c) octane.
8.4.2.4 Paint Thinner
This is a term used to describe liquids that are used to thin down thick, oil-
based paints as well as to remove paint from brushes and rollers used in the
painting process. These thinners may include turpentine (derived from pine
trees with an approximate chemical formula of C
10
H
16
), turpentine substitute
(derived from crude oil typically of C
9
to C
16
range) or white spirit (derived
from crude oil typically of C
7
to C
12
range). These liquids are generally classed
as medium petroleum distillates (Figure 8.27).
8.4.3
Different Types of Fire
•
Accidental:
These fires usually have a certain degree of contributory
negligence attached to them. This is typically important and of inter-
est to insurance companies. Fires due to accidental cause can be split
into three main categories:
• Human error (e.g., lit candles or accumulation of grease).
• Electrical ires (e.g., old or faulty electrical wiring).
• Natural ires (e.g., lightning strikes or spontaneous combustion).
•
Deliberate:
Generally, such incidents are caused by some form of
flammable material used to accelerate the fire. An ignitable liquid
may be used; however, this is not always the case. Motivations for
deliberate fire-raising are varied and complex and may include an
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