Aluminum hydroxide is a flame retardant addtive.
Used in plastics and rubber compounds, Compounds used in electrical application, Compounds used in eletronic application, Compounds used in building and construction,Compounds used in Wire&Cable,Abrasive for glass industry,ceramics and stones,Textile coating, etc.
Aluminum Hydroxide is the most consumable and applicable inorganic additive flame retardant.
Molecular Formula: AL(OH)3 or AL2O3·3H2 O
CAS No. 21645-51-2
Physical Properties
Product Name |
Aluminum Hydroxide |
Synonym |
Alumina Trihydrate / ATH |
Subject |
A-1 |
AH-3 |
AH-5 |
AH-8 |
A-8 |
A-8L |
AH-10H |
A-10 |
A-15 |
AH-25 |
AL(OH)3 % |
≥99.5 |
≥99.5 |
≥99.5 |
≥99.5 |
≥99.5 |
≥99.5 |
≥99.5 |
≥99.5 |
≥99.5 |
≥99.5 |
SiO2 % |
≤0.03 |
≤0.03 |
≤0.02 |
≤0.02 |
≤0.03 |
≤0.03 |
≤0.03 |
≤0.03 |
≤0.05 |
≤0.05 |
Fe2O3 % |
≤0.02 |
≤0.03 |
≤0.02 |
≤0.02 |
≤0.02 |
≤0.02 |
≤0.03 |
≤0.03 |
≤0.03 |
≤0.03 |
Na2O % |
≤0.35 |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.35 |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
L.O.I % |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
34.5±0.5 |
Moisture % |
≤0.30 |
≤0.35 |
≤0.35 |
≤0.35 |
≤0.30 |
≤0.30 |
≤0.30 |
≤0.35 |
≤0.35 |
≤0.35 |
Particle Size D50 (μm) |
1 ~ 2 |
3 ~ 4 |
4.5 ~ 6.5 |
7 ~ 9 |
8 ~ 10 |
6 ~ 9 |
9~ 12 |
10 ~ 13 |
13 ~ 16 |
22~ 28 |
Whiteness % |
≥96 |
≥96 |
≥96 |
≥95 |
92-94 |
91-93 |
≥95 |
90~92 |
≥89 |
≥92 |
Oil Absorption (Castor Oil) ml/100g |
≤45 |
≤45 |
≤40 |
≤38 |
≤35 |
≤30 |
≤35 |
≤32 |
≤30 |
≤30 |
Product Type |
Precipitated Fine ATH (Precipitated Source) |
Fine Ground ATH (Mined Source) |
Application
Production of AL chemicals,such as aluminum sulfate, PAC,sodium aluminate, zeolites, aluminum fluoride.
A raw material in the manufacture of glass, glazes and frits. A raw material in catalyst production .
A flame retardant and smoke suppressant filler in plastics, such as cables, rubber products and carpet backing.
A raw material for fertilizers, and fibre cement board products.
An extender and bodying agent in paper, solvent &water-borne paints, UV curable coatings, inks,adhesives.
A polishing and cleansing agent, mould wash and separating agent
A filler of cast polymer products such as onyx and solid surfaces.
Package : 25 kg/bag on pallets