di-Sodium hydrogen phosphate dihydrate
SIGALD/30435 - puriss. p.a., reag. Ph. Eur., 98.5-101.0% (calc. to the dried substance)
Synonym: sec-Sodium phosphate; Disodium hydrogen phosphate dihydrate; Disodium phosphate; Sodium phosphate dibasic dihydrate
CAS Number: 10028-24-7
Empirical Formula (Hill Notation): HNa2O4P · 2H2O
Molecular Weight: 177.99
EC Number: 231-448-7
MDL Number: MFCD00149182
Linear Formula: Na2HPO4 · 2H2O
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 30435-500G
This image depicts SKU: 30435-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 30435-1KG
This image depicts SKU: 30435-1KG
| agency | reag. Ph. Eur. |
| USP/NF | |
| anion traces | chloride (Cl-): ≤10 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| assay | 98.5-101.0% (calc. to the dried substance) |
| cation traces | As: ≤0.5 mg/kg |
| Fe: ≤5 mg/kg | |
| K: ≤50 mg/kg | |
| form | crystals |
| grade | puriss. p.a. |
| impurities | reducing impurities, complies |
| ≤0.0005% heavy metals (as Pb) | |
| ≤0.001% total nitrogen (N) | |
| ≤0.5% NaH2PO4 (calc. to dried subst.) | |
| InChI | 1S/2Na.H3O4P.2H2O/c;;1-5( |
| InChI key | KDQPSPMLNJTZAL-UHFFFAOYSA |
| loss | 19.5-21.0% loss on drying, 130 °C |
| pH | 9.0-9.2 (20 °C, 5%) |
| Quality Level | 200  |
| SMILES string | O.O.[Na+].[Na+].OP([O-])( |
| suitability | in accordance for appearance of solution |
| Application: | Sodium phosphate dibasic dihydrate is used: • In the synthesis of BiOCl/BiPO4 composites from bismuth nitrate pentahydrate and potassium chloride by the microwave-assisted hydrothermal method. • To prepare sodium phosphate buffer solution. • As a phosphorus source in the synthesis of Mg-doped hydroxyapatite nanoplates. |
| General description: | Sodium phosphate dibasic dihydrate is a highly hygroscopic and water-soluble compound. It is used in water softeners, cleaners also as buffers in particular formulations. |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 98.5-101.0% (calc. to the dried substance) |
| UNSPSC | 12352300 |