UltiMate 3000 Series:
SD, RS, and BM Pumps
Page
212
Operating
Instructions
12.4 Safety Information about Flammable Solvents
The following table provides an overview of safety information for flammable solvents in
HPLC
Aceto
nitrile
Diethyl ether
Ethanol
Ethyl acetate
Heptane
Hexane
Isopropanol
Methanol
T
etrahydofuran
e
Boiling
point
(°C)
82 35 78 77 98 69 82 65 66
Vapor
pressure
(hPa)
118 735 93 121 55 202 60 169 216
Flash point (°C)
6
-45
12
-4
-4
-22
12
11
-14
Auto-ignition
temperature
(°C) 520 190 490 490 230 260 540 510 320
Explosion
Limits
(%)
3-16 2-36 3-19 2-36 1-7 1-8 2-12 7-36 2-12
The table is based on the following definitions and references.
Definitions
The flash point is the lowest temperature at an atmospheric pressure of 1013 mbar at
which a liquid gives off enough vapors to ignite with an external ignition source when
mixing with the air above the liquid.[1]
Substances whose flash point is below 38 °C are classified as flammable.[2]
The auto-ignition temperature is the lowest temperature at which substances can self-
ignite at atmospheric pressure without an external ignition source, that is, without external
ignition by sparks or flames. The thermal energy required to reach the auto-ignition
temperature is created by a spontaneous chemical reaction or physical processes in or on
the surface of the combustible substances. The determination of the auto-ignition
temperature is imprecise and depends on the equipment and apparatus in use.
Nevertheless, it indicates the maximum permissible surface temperature of equipment and
apparatus when they are exposed to an air-vapor mixture of these substances. [1, 2]
The explosion limit are the upper and lower concentration limits of a mixture of a
flammable gas or vapor with air in which this mixture can explode when being heated or
by means of sparks.[1]
Tip:
Volatile solvents are not necessarily flammable as well. For example,
chloroform is volatile but non-flammable.
Summary of Contents for UltiMate 3000 Series
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