Certificate of Analysis
Product Name
SILICOTUNGSTIC ACID 99.5% AR
CAS Number
12027-43-9
Molecular Formula
[H4(SiW3O10)4]·xH2O
Catalogue No.
AL01325
Molecular Weight
2878.29 g/mol
Batch Number
AL-2026-AL01325
Manufacturing Date
September-2026
Expire Date
September-2031
| Type of Test | Standard | Observed |
|---|---|---|
| Description | Slightly yellow colored powder | Slightly yellow colored powder |
| Assay | (Min.) 99.5% | 99.79% |
| Chloride (Cl ) | <0.005% | <0.005% |
| Sulphate (SO4) | <0.005% | 0.004% |
| Nitrogen compound (N) | <0.002% | 0.001% |
| Heavy metals (as Pb) | <0.002% | <0.002% |
| Iron (Fe) | <0.001% | <0.001% |
| Potassium (K) | <0.02% | 0.0082% |
| Sodium (Na) | <0.02% | <0.02% |
| Loss on ignition at 750°C | <16.00% | 11.36% |
Tested By
Hitesh Kunjathur
Analysed By
Preeti Rane
