Description:
Magnesium Aluminum Silicate NF, Type IAA (Grade: ATPN K) is suitable for low acidity, exhibiting good compatibility with high acidity and high electrolyte content. Often used to provide a stable suspension system at low viscosity.
Applications:
Magnesium Aluminum Silicate NF (Type IAA) is employed in acidic pharmaceutical oral suspensions and hair care products containing conditioning active ingredients. Typical addition rates range from 0.5% to 3%.
Specifications:
Items |
Specification |
Test Method |
Appearance |
Off-white granules or powder |
|
Acid Demand |
4.0 maximum |
Current Volume USP/NF |
Al/Mg Ratio |
1.4-2.8 |
Current Volume USP/NF |
Arsenic Content |
3 ppm maximum |
Current Volume USP/NF |
Lead Content |
15 ppm maximum |
Current Volume USP/NF |
Microbiology |
No more than 100 cfu/g bacteria |
Current Volume USP/NF |
No more than 100 cfu/g fungi & yeast |
Current Volume USP/NF |
|
No Escherichia coli |
Current Volume USP/NF |
|
No Salmonella sp. |
Current Volume USP/NF |
|
No Staphylococcus aureus |
Current Volume USP/NF |
|
No Pseudomonas aeruginosa |
Current Volume USP/NF |
|
No Gram-negative organisms |
T-968 |
|
Moisture Content |
8.0% maximum |
Current Volume USP/NF |
pH, 5% Dispersion |
9.0-10.0 |
Current Volume USP/NF |
Viscosity, Brookfield, 5% Dispersion |
100-300 cps |
Current Volume USP/NF |
X-ray Diffraction |
Peaks between 1.492-1.504, 1.510- 1.540, and 15.0-17.2 Angstroms |
Current Volume USP/NF |
Storage: ATPN K is hygroscopic and should be stored under dry condition.