Certificate of Analysis
Product Name
ARSENAZO III AR (reagent for thorium)
CAS Number
1668-00-4
Molecular Formula
C22H16As2N4Na2O14S2·4H2O
Catalogue No.
AL0185C
Molecular Weight
892.40 g/mol
Batch Number
AL-2026-AL0185C
Manufacturing Date
September-2026
Expire Date
September-2031
| Type of Test | Standard | Observed |
|---|---|---|
| Description | Black crystalline powder | Black crystalline powder |
| Absorption max(buffer pH 10.0) | 571-576 nm | 574 nm |
| Sp. absorbtivity A1%/1cm (absorp. max 0.0025%; buffer pH 10.0) | 300-450 | 350.00% |
| Loss on drying (110°C) | max 10.0% | 8.50% |
| Suitability as indicator | passes test | passes test |
Tested By
Hitesh Kunjathur
Analysed By
Preeti Rane
