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MPP Fourmulation: AL(OH)3
CAS No.21645-51-2 EINECS No.244-492-7
General Introduce
ATH is one halogen free flame retardant, and have high thermal stability. is one white powder without smell; it is neutral substance that can react with acid and alkali both. ATH-1 grade is widely used as fire retardant in plastic and rubber industry.
Some applications need low Sodium content in ATH,we can add the wash time to reduce Sodium index.Normally, Sodium index can be controlled under to 0.2%.By special process, Sodium index can reduce down to 0.01% that depend on specific order.
Chemical Data |
ATH-1 |
Grade No. |
ATH-1B |
Particle size, D50 um |
1.2-1.5 |
Whiteness ,> |
98 |
Surface water,% ≤ |
0.4 |
Al(OH)3, %≥ |
99.6 |
SiO2 , % ≤ |
0.02 |
Fe2O3,% ≤ |
0.01 |
Na2O,% ≤ |
0.35 |
Na2O Soluble,%≤ |
0.05 |
LOI,% ≥ |
34.5 |
E conductivity,μS/cm≤ |
100 |
Oil Absorption, ml/100g |
30-40 |
Refractive Index |
1.58 |
Fire Retardant
ATH-1 is one inorganic fire retardant whit low cost. It has not only property as fire retardant, but good performance to reduce smoke and toxic gas, anti drop etc, so ATH become the most widely used fire retardant in plastic and rubber, such as polyesters, acrylics, ethylene vinyl acetate, epoxies, PVC and rubber.
Normally, ATH-1 additive amount is very high that is up to 30-60phr;
it is easy to influence the mechanical properties of the material, so its quantity should be controlled. When AL (OH) 3 is composited with other types of fire retardants, such as Zinc Borate, Phosphorus, PBDEs, synergism is very good that can improve the performance considerably.
ATH-1 grade can be surface treated by non-polar polymer of Stearic acid or Silicon Oil, the compatibility and combination with plastic material will be improved so that it is easy to evenly distribute into material, then the performance of fire retardant and mechanical properties is better than normal grade AL (OH) 3.
Physical Data |
ATH-1 Grade |
Appearance |
White powder |
Molecular weight |
78 |
Decomposition Temp℃ |
200 |
Specific gravity |
2.4 |
Viscosity |
2000-3000 |
Package,Transportation,Storage
Standard package is 25kg/bag,500kg/bag,1000kg/bag.
And we can design package according to order.
Stored in cool, dry and well ventilated environment.
Packed and transported as normal chemical goods.
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