Aluminium Hydroxide

We offer Percipatated Aluminium Hydroxide, Al(OH)3, which is a non-abrasive powder with a Mohs' hardness index of 2.5 - 3.5 and a specific gravity of 2.42. Aluminium Hydroxide is considered as one of the largest volume flame retardant as it can be heated to 200°C and hydrated alumina can be decomposed into 66% alumina and 34% water. Aluminium hydroxide is also used as an adsorbent, emulsifier, ion exchanger, mordant, antacid, and filtering medium. Further, Aluminium Hydroxide can also be used in manufacturing of paper, ceramics, printing inks, detergents, for waterproofing fabrics and in dentrifrices and antiperspirants.

Physical and Chemical Properties:
Specification of Aluminium Hydroxide :
Physical State Odorless White Powder
Melting Point 300 C
Specific Gravity 2.42
Solubility In Water Insoluble
Ph Weak Basic
Vapor Density Autoignition
NFPA Ratings Health: 1; Flammability: 0; Reactivity: 0
Refractive Index Flash Point Not Considered To Be A Fire Hazard
Al(Oh)3 99.5% Min
Al2o3 64.0% Min
Sio2 0.015% Max
Fe2o3 0.02% Max
Moisture 0.3% Max
Loss On Ignition 34.0 - 35.0%
Whiteness 96% Min
Particle Shape Platelet, Pseudo-hexagonal
Average Particle Size 1 - 2 Microns

Synonyms of Aluminium Hydroxide
Hydrated Alumina Aluminium (III) Hydroxide
Aluminium Trihydrate Trihydroxy Aluminium
Trihydrated Alumina -
  • A flame retardant and smoke suppressant filler in plastics like cables, rubber products and carpet backing
  • A filler of cast polymer products such as onyx, solid surfaces and artificial marble
  • A raw material for fertilizers, and fibre cement board products
  • A raw material in catalyst production
  • An extender and bodying agent in paper, solvent- and water-borne paints, UV curable coatings, inks, and adhesives
  • A polishing and cleansing agent, mould wash and separating agent
  • A raw material in the manufacture of glass, glazes and frits