Ammonium Dodecyl Sulfate
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Properties
Appearance    (1), white to light yellow gelatinous colloid; (2), white to light yellow liquid; (3), solid.
Odor    faint characteristic odor.
Solubility    soluble in water.
Hygroscopicity    Solid ammonium dodecyl sulfate: hygroscopic.
Physical - chemical properties
Surface tension, mN/m, 25°C
38 (100mg/L)[1]
Flash point, °C
> 93
Stability    pH: 4~7, stable. pH < 4: hydrolyzed, reduced to alcohol. pH > 7: release ammonia. Break down when heated to high temperature for a long time. Stable in hard water.
Risk    Colloid or liquid form: irritation, moderate irritation to skin, eye. Compared with sodium lauryl sulfate, ammonium lauryl sulfate has lower toxicity and irritation.
GHS (Rev.6) label:
Animal toxicity
Table 1 Animal toxicity values
Rat oral LD50
4700mg/kg[2]
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent foaming, cleansing, emulsifying, wetting, permeating, dispersing, solubilizing abilities. Resistant to hard water. Particularly suitable for preparation of a low pH value (neutral to weakly acidic) products.
Ammonium lauryl sulfate (ALSA) and ammonium laureth sulfate (AESA) complexes can produce excellent synergies, such as: rich foam, very mild, excellent thickening properties.
Note    (1), Avoid using in children products that can be direct prolonged contact with the skin, such as: skin care products.
(2), Use in products that can be long-term direct contact with the skin, such as: skin care products, usage should not exceed 1%[2].
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