HomeProducts

Ammonium stearate

CAS Number
1002-89-7
EC Number
213-695-2
Chemical Formula
C18H36O2.H3N
Molecular Weight
301.5 g/mol

Description

Ammonium stearate ( CAS 1002-89-7 ), the ammonium salt of stearic acid, functions as an emulsifier, rheology modifier, and foam control agent across multiple industrial sectors. It enables stable dispersion of hydrophobic materials in aqueous systems, making it a practical processing aid where pH-sensitive formulations require controlled viscosity and surface activity. In construction, it is used in waterproofing compounds and masonry treatments where controlled emulsion stability is critical to coating performance for long-term durability. Rubber and tire manufacturers incorporate it as a processing aid and dispersing agent during compounding, improving filler distribution and surface finish of the final product. Personal care formulators use it to build viscosity and stabilize emulsions in creams and lotions without relying on synthetic thickeners, ensuring a smooth application profile. In textile and leather processing, it functions as a softening and finishing agent, improving surface feel and aiding uniform dye or coating penetration across the material. Ammonium stearate is supplied as a paste or aqueous solution, with dry powder or flake forms available for specific applications depending on the manufacturing requirements. Standard concentrations in solution form typically range around 33–35% active content. Technical and industrial grades are the most common supply specifications for global distribution. Contact us for supply of Ammonium stearate Request Quote

Other Names (Synonyms)

ammonium octadecanoate | Octadecanoic acid, ammonium salt | 37899330TZ | RefChem:112206 | Stearic acid, ammonium salt | Octadecanoic acid, ammonium salt (1:1) | Stanfax 320

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point22 °C
Boiling Point442.62°C (rough estimate)
Density0.8900
Appearancecream or light yellow powder
Coloryellow-white
Odorwh. to tan wax-like solid, free from ammonia odor
Formyellow-white powder
Water Solubilitysoluble H2O [MER06]
soluble hot toluene [HAW93]
Refractive Index1.5000 (estimate)
Log P8.216 (est)

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H319Causes serious eye irritation

Precautionary Statements

P280Wear protective gloves/protective clothing/eye protection/face protection.
P265Wash … thoroughly after handling.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.