Sodium Phosphate Dibasic Heptahydrate
SKU
S-2857
- CAS:7782-85-6
- Formula:Na2HPO4 • 7H2O
- MW: 268.07 Da
- Appearance:Fine white crystalline powder
- Purity:>98%

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Description
Sodium Phosphate Dibasic Heptahydrate is useful as a biological buffer.
Specifications
• Arsenic: ≤16 ppm
• Chloride: ≤0.06%
• Heavy Metals : ≤20 ppm
• Sulfate: ≤0.2%
• Insoluble Matter: ≤0.4%
• Loss on Drying: 43.0-50.0%
• pH (5%, water @25 oC): 8.7 - 9.3
Not for human therapeutic use or for medicinal purposes. For research applications only.
More Information
Alternate Name/Synonyms
Disodium phosphate heptahydrate; Disodium hydrogen phosphate heptahydrate; Sodium hydrogen phosphate heptahydrate
SKU
S-2857
CAS #
7782-85-6
Chemical Name
disodium;hydrogen phosphate;heptahydrate
Chemical Formula
Na2HPO4 • 7H2O
Molecular Weight
268.07 Da
Appearance
Fine white crystalline powder
Purity
>98%
Solubility
Water
Storage Temp
Room temperature
USE
Biological buffer
Handling
Use in a chemical fume hood, with air supplied by an independent system. Avoid inhalation, contact with eyes, skin and clothing. Avoid the formation of dust and aerosols. Use in a well-ventilated area. Keep away from sources of ignition. Avoid prolonged or repeated exposure.
Hazard Image
Yes
GHS PICTOGRAMS | ![]() |
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Handling | Use in a chemical fume hood, with air supplied by an independent system. Avoid inhalation, contact with eyes, skin and clothing. Avoid the formation of dust and aerosols. Use in a well-ventilated area. Keep away from sources of ignition. Avoid prolonged or repeated exposure. |