Triethanolamine Lauryl Sulfate
time:2012-09-07 15:53:43,count:0
Appearance    (1), colorless to slightly yellow liquid; (2), paste.
Odor    faint characteristic odor.
Solubility    soluble in water.
Physical - chemical properties
Surface tension, mN/m
49 (25°C, 100mg/L)[1]
CMC, mmol/L
5.91 (20°C)[1]
5.50 (25°C)[1]
Krafft point, °C
< –5[1]
Flash point, °C
> 93
Melting point, °C
72 – 122.5[1]
Density, g/cm3, 20°C, approx.
1 – 1.1[1]
Stability    stable in alkali, weak acid and hard water; unstable in strong acid, hydrolyzed, reduced to alcohol.
Risk    Liquid form: irritation, irritation to skin, eye.
GHS (Rev.6) label:
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, foaming, emulsifying, wetting, permeating, dispersing, solubilizing abilities. Mild. Resistant to hard water. Transparent at low temperature. Foam is rich and exquisite. Good compatibility.
Note    (1), Do not use in children products that can be direct prolonged contact with the skin, such as: skin care products.
(2), Avoid using in children cleaning products, such as: shampoos.
(3), Compare with triethanolamine, diethanolamine and monoethanolamine have higher toxicity, and therefore diethanolamine lauryl sulfate and monoethanolamine lauryl sulfate are not suitable for personal care products, also run low in other applications.
(4), Do not use in nitrosating environment. Reaction of triethanolamine and nitrous acid can not produce nitrosamines, however, reaction of contained secondary amine of triethanolamine and nitrous acid can produce nitrosamines. Nitrosamine is a carcinogen.
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