1、Chemical Name: Ammonium Oxalate
2、Molecular Formula : （NH4）2C2O4·H2O
3、Molecular Weight: 142.11
4、CAS：6009-70-7
5、Character: It occurs as colorless crystal. Relative density is 1.501. Refractive index is 1.439. It’s soluble in water, but insoluble in ethanol.
6、Usage: It’s used as analytical reagent, organic synthetic intermediate.
7、Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
| Specification | HG/T 3453-2012 |
| Assay [（NH4）2C2O4·H2O] w/% ≥ | 99.5 |
| pH （50g/L,25℃） | 6.0-7.0 |
| Clarity Test/No ≤ | 6 |
| Insoluble Substances，w/% ≤ | 0.015 |
| Chlorides (Cl) ，w/% ≤ | 0.002 |
| Sulfates (SO4) ，w/% ≤ | 0.02 |
| Sodium (Na) ，w/% ≤ | 0.005 |
| Magnesium (Mg) ，w/% ≤ | 0.005 |
| Potassium (K) ，w/% ≤ | 0.005 |
| Calcium (Ca) ，w/% ≤ | 0.005 |
| Iron (Fe) ，w/% ≤ | 0.001 |
| Heavy Metal (As Pb) ，w/% ≤ | 0.0015 |
