Sodium dodecyl sulfate (K12) SLS CAS 751-21-3 basic information

Sodium dodecyl sulfate (K12) SLS CAS 751-21-3?

Sodium dodecyl sulfate (K12)

Product nature

White or light yellow powder, with a slight special smell, non-toxic. Bulk ratio is 0.25g/ml, melting point 180-185癈(decomposition). Soluble in water to form a translucent solution, stable to alkalis, weak acids and hard water. It is hydrolyzed in a strong acidic solution, easily biodegradable, unstable to heat, stable below 80癈. Foaming force is strong, foam is fine and dense, white and full.

Molecular weight

288.38

Molecular formula

CH3(CH2)11OSO3Na Sodium dodecyl Sulfate (K12)

Quality index (GB/T15963-1995)

Project index

Appearance white or light yellow powder (needle), not clumping.

Active substance content % ≥90

Petroleum ether soluble content % ≤2.0

Inorganic salt content %(Nacl Na2SO4) ≤5.5

Moisture % ≤3.0

PH (1% solution) 7.5-9.5

Whiteness (We) ≥65

Product use

It is an anionic surfactant with good wetting, floating and decontamination foaming properties. It is less irritating to the skin and is widely used in daily chemical industry, toothpaste, medicine, chemical industry, textile, electroplating, mineral processing and other industries.

Product packaging and storage

Must be moisture-proof, heat-proof, fireproof and not stored with acid. 20kg composite plastic woven bag, lined with polyethylene bag.

Project index

Powder products Needle products Liquid products

Good quality product Good quality product good quality product

Active substance content, %, ≥ 94 90 92 88 30 27

Petroleum ether soluble matter, %, ≤ 1.0 1.5 1.0 1.5 1.0 1.5 1.0 1.5

Inorganic salt content (measured by sodium sulfate and sodium chloride), %, ≤ 2.0 5.5 2.0 5.5 1.0 2.0

PH value (25℃,1% aqueous solution of active substance) 7.5-9.5 7.5

Whiteness (WG), ≥ 80 75 --

Moisture, % 3.0 5.0 --

Heavy metals (lead), ppm 20.0

Arsenic, ppm 3.0