Specification Sheet
Product Name
Ethylenediaminetetraacetic acid tetrasodium salt hydrate practical grade, ≥95%
Product Number
ed4s
Product Brand
sigma
CAS Number
194491-31-1
Molecular Weight
380.17 (anhydrous basis)
Test | Specification |
|---|---|
| APPEARANCE (COLOR) | White |
| APPEARANCE (FORM) | Powder |
| TITRATION (KT) EDTA 0.1M | ≥ 95 % (dry basis) |
| SOLUBILITY (COLOR) | Colorless |
| SOLUBILITY (TURBIDITY) | Clear |
| SOLUBILITY (METHOD) | 32g plus 200ml of water |
| LOSS ON DRYING | ≤ 16.8 % |
| ASSAY (ICP) | Sodium 22 - 25 % (dry basis) |
| RECOMMENDED RETEST PERIOD | 36 MONTHS |