Molecular formula: AL(OH)3 or AL2O3·3H2 O Molecular Weight : 78 1. Aluminum Hydroxide Alumina Trihydrate or ATH is the leading flame retardant used worldwide for plastics and rubber materials, functioning as a filler and offering non-toxic, smoke suppressant properties. Low resin demand, consistent quality and relative cost-performance benefits make CHENXU an ideal choice for uses such as SMC, BMC, thermoplastic profiles, paints & coatings and adhesives. Several grades of CHENXU are available, differentiated by particle size, to meet specific performance requirements. Alumina Trihydrate is used as a filler for epoxy, urethane, or polyester resins, where fire retardant properties are required. 2. Technical Specification
Spec. Index | AH-1 | AH-3 | AH-5 | AH-8 | AH-10 | AH- 325A | AH- 325B | AH- AM25 | AH- 1CEI | AH- DP100 |
Appearance | White Powder |
AL(OH)3 % ≥ | 99.6 |
SiO2 % ≤ | 0.01 | 0.01 | 0.01 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
Fe2O3 % ≤ | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.05 |
Na2O % ≤ | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 |
L.O.I ≤ | 35 |
Moisture % ≤ | 0.30 |
D50(μm) | 0.8-1.8 | 1.8-4.8 | 5-7.5 | 8-10.5 | 9.5-12 | 13-18 | 10-12 | 22-27 | 1.4-2.5 | 75-120 |
Whiteness% ≥ | 97.5 | 97.5 | 97.5 | 97.5 | 97.5 | 92 | 93-95 | 96 | 97-98 | 90-95 |
DOP ml/100g ≤ | 40 | 35 | 35 | 35 | 35 | 27 | 27 | 25 | 40 | 30 |
Remarks | Cotaed By Custumer' Requirments |
CAS No | 21645-51-2 | Formula | AL(OH)3 or AL2O3·3H2O |
3. Applications A raw material in the production of Aluminium chemicals A raw material in the manufacture of glass and glazes A raw material in catalyst production A flame retardant and smoke suppressant filler in plastics (for example: Cables, rubber products and carpet backing) A raw material for fertilizers, and fiber cement board products 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 filler of cast polymer products such as onyx and solid surfaces 4. Packaging / Transportation Internal plastic with knitted exterior covered with film, with the net weight of 20kg, 25kg or 40kg. The product is of non-dangerous one, which should be protected from damp, rainfall and package damage in transportation.