1、Chemical Name: Ammonium Citrate Dibasic
2、Molecular Formula: C₆H₁₄N₂O₇
3、Molecular Weight: 226.192
4、CAS: 3012-65-5
5、Character: It is colorless fine crystals or white particles. Slightly soluble in ethanol. The solution is weakly acidic, and the pH of 0.1mol/L water is about 4.3.
6、Usage: Analytical reagent, synergetic solvent extraction reagent, masking reagent, buffering reagent.
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 & Transportation: 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 |
FCC VII | HG/T3497-2000
分析纯 |
HG/T3497-2000
化学纯 |
|
Content (On dry basis), w/%≥ |
98.0 |
99.0 | 98.0 |
|
Chloride (Cl), w/%≤ |
0.001 | 合格 |
合格 |
|
Clarity test |
— |
合格 |
合格 |
|
pH (50g/L Solution,25℃) |
4.5-5.5 |
— |
— |
|
Water Insoluble, w/%≤ |
— |
0.005 |
0.01 |
|
Ignition Residue (as SO₄), w/%≤ |
— |
0.005 |
0.06 |
|
Sulphate (SO₄), w/%≤ |
0.005 |
0.002 |
0.01 |
|
Phosphorus Compound (as PO₄), w/%≤ |
— |
0.0005 |
0.001 |
|
Heavy metal (as Pb), w/%≤ |
— |
合格 |
— |
|
Oxalate (C₂O₄), w/%≤ |
— |
0.005 |
0.02 |
|
Calcium (Ca), w/%≤ |
— |
0.001 |
0.0005 |
|
Iron (Fe), w/%≤ |
— |
0.001 |
0.0002 |
| Lead (Pb), mg/kg≤ | 2.0 |
— |
— |
