Diammonium Hydrogen Phosphate AGR
Diammonium hydrogen phosphate, AGR grade, purity ≥ 99.0%. Formula (NH₄)₂HPO₄, molecular weight 132.05, CAS 7783-28-0. Colourless crystals or white crystalline powder, soluble in water. pH of 5% solution (20°C): 7.8–8.2. Heavy metals (Pb) ≤ 0.0005%, arsenic (As) ≤ 0.0001%, chlorides ≤ 0.0005%, sulphates ≤ 0.005%, nitrates ≤ 0.001%. Iron III ≤ 0.001%, potassium ≤ 0.01%, sodium ≤ 0.01%. Water-insoluble substances ≤ 0.005%. Suitable for analytical applications requiring low ionic impurity levels.
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Diammonium Hydrogen Phosphate AGR (NH₄)₂HPO₄
Diammonium hydrogen phosphate, AGR grade. Purity ≥ 99.0%. Colourless crystals or white powder, soluble in water. CAS 7783-28-0, EC 231-987-8, molecular weight 132.05.
Technical Specifications
- Assay: ≥ 99.0%
- Appearance: Colourless crystals or white crystalline powder
- pH (5% in water, 20°C): 7.8–8.2
- Water-insoluble substances: ≤ 0.005%
- Nitrates (NO₃): ≤ 0.001%
- Chlorides (Cl⁻): ≤ 0.0005%
- Sulphates (SO₄): ≤ 0.005%
- Heavy metals (Pb): ≤ 0.0005%
- Arsenic (As): ≤ 0.0001%
- Iron III (Fe (III)): ≤ 0.001%
- Potassium (K): ≤ 0.01%
- Sodium (Na): ≤ 0.01%
Typical Applications
Preparation of phosphate buffers in the basic range. Reference reagent in volumetric and gravimetric analysis. Nitrogen and phosphorus source in microbiological culture media — also used as a standard in chromatographic methods.
Low interfering ion content makes it suitable for sensitive analytical techniques where chlorides, sulphates, or heavy metals could compromise results.
Product Identification
- Formula: (NH₄)₂HPO₄
- Molecular weight: 132.05
- CAS: 7783-28-0
- EC: 231-987-8
- TARIC: 31053000
- Grade: AGR
| Brand | LABKEM |
|---|---|
| Grade | Analytical Grade |
| Assay | ≥ 99.0% |
| M | 132.05 |
| CAS | 7783-28-0 |
| EINECS | 231-987-8 |
| formula | (NH4)2HPO4 |
| Tarix Code (CODCN) | 31053000 |
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