ChemicalBook >> CAS DataBase List >>Dibasic Sodium Phosphate
Dibasic Sodium Phosphate
- CAS No.
- 7558-79-4
- Chemical Name:
- Dibasic Sodium Phosphate
- Synonyms
- DISODIUM PHOSPHATE;DSP;DISODIUM HYDROGEN PHOSPHATE;DIBASIC SODIUM PHOSPHATE;DSPA;DISODIUM PHOSPHATE DIHYDRATE;BUFFER SOLUTION;Sodium phosphate dibasic anhydrous;SODIUM HYDROGENPHOSPHATE;SODIUM MONOHYDROGEN PHOSPHATE
- CBNumber:
- CB00123434
- Molecular Formula:
- Na2HPO4
- Molecular Weight:
- 141.96
- MDL Number:
- MFCD00003496
- MOL File:
- 7558-79-4.mol
- MSDS File:
- SDS
Last updated:2025-03-07 08:52:18
| Melting point | 243-245 °C |
|---|---|
| Density | 1.064 g/mL at 20 °C |
| bulk density | 880kg/m3 |
| vapor density | 4.9 (vs air) |
| vapor pressure | 0Pa at 20℃ |
| FEMA | 2398 | DISODIUM PHOSPHATE |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 0.5 M at 20 °C, clear, colorless |
| form | powder |
| color | White |
| PH | 8.9-9.2 (25℃, 50g/L in water) |
| pka | (1) 2.15, (2) 6.82, (3) 12.38 (at 25℃) |
| Odor | odorless |
| biological source | synthetic |
| Water Solubility | >=10 g/100 mL at 20 ºC |
| Sensitive | Hygroscopic |
| λmax |
λ: 260 nm Amax: 0.019 λ: 280 nm Amax: 0.016 |
| Merck | 14,8659 |
| Stability | Stable. Incompatible with strong acids. Hygroscopic. |
| InChIKey | BNIILDVGGAEEIG-UHFFFAOYSA-L |
| LogP | -2.15 |
| CAS DataBase Reference | 7558-79-4(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | SODIUM PHOSPHATE, DIBASIC |
| FDA UNII | 22ADO53M6F |
| EPA Substance Registry System | Disodium phosphate (7558-79-4) |
| Absorption |
≤0.01 at 260nm ≤0.01 at 280nm |
| UNSPSC Code | 41116107 |
| NACRES | NB.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-24/25 | |||||||||
| RIDADR | UN 3077 9 / PGIII | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | WC4500000 | |||||||||
| F | 3 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 28352200 | |||||||||
| Hazardous Substances Data | 7558-79-4(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg | |||||||||
| NFPA 704 |
|
Dibasic Sodium Phosphate price More Price(116)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 94046 | Sodium phosphate dibasic solution BioUltra, 0.5?M in H2O | 7558-79-4 | 100mL | $64.9 | 2024-03-01 | Buy |
| Sigma-Aldrich | NIST2186II | Disodium hydrogen phosphate NISTSRM2186II | 7558-79-4 | 30g | $947 | 2024-03-01 | Buy |
| Sigma-Aldrich | 94046 | Sodium phosphate dibasic solution BioUltra, 0.5?M in H2O | 7558-79-4 | 500mL | $196 | 2024-03-01 | Buy |
| Sigma-Aldrich | 567550 | Sodium Phosphate, Dibasic - CAS 7558-79-4 - Calbiochem ACS Reagent Grade. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers. | 7558-79-4 | 500g | $97 | 2024-03-01 | Buy |
| Sigma-Aldrich | 567547 | Sodium Phosphate, Dibasic, Molecular Biology Grade - CAS 7558-79-4 - Calbiochem Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers. | 7558-79-4 | 250g | $63.3 | 2024-03-01 | Buy |
Dibasic Sodium Phosphate Chemical Properties,Uses,Production
Description
Dibasic Sodium Phosphate (Sodium phosphate, dibasic) is an odorless, colorless, sandlike solid or white powder. It is used to make starch, as an emulsifier in foods and produce enamels, ceramics, and detergents.
Uses
Dibasic Sodium Phosphate is used as a sequestrant, emulsifier, and buffer in foods; as a mordant in dyeing for weighting silk, in tanning, in manufacturing of enamels, ceramics, detergents, boiler compounds; as fireproofing agent in soldering and brazing instead of borax; as reagent and buffer in analytical chemistry, cathartic., laxative. It is a very high buffering capacity reagent and is widely used in molecular biology, biochemistry, and chromatography. Useful in conjunction with Sodium Phosphate and monobasic in preparing biological buffers. Used in many applications, including the purification of antibodies.
Preparation
Dibasic sodium phosphate is prepared by reacting dibasic calcium phosphate with sodium carbonate. The product calcium carbonate precipitates leaving dibasic sodium salt in the solution. The solution on cooling yields crystals of hydrated product.
CaHPO4 + Na2CO3 → CaCO3 + Na2HPO4
Health Hazard
Dibasic Sodium Phosphate can affect humans when breathed in and by passing through your skin. Contact can irritate the skin and eyes. Breathing this compound can irritate the nose and throat, causing coughing and wheezing. High and repeated exposure can cause a skin rash (dermatitis).
Dibasic Sodium Phosphate Preparation Products And Raw materials
Global( 684)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
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View Lastest Price from Dibasic Sodium Phosphate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-04-25 | Sodium Phosphate, Dibasic
7558-79-4
|
US $6.00 / kg | 1kg | 99% | 2000KG/Month | HebeiShuoshengImportandExportco.,Ltd | |
 |
2024-11-07 | Sodium Phosphate, Dibasic
7558-79-4
|
US $0.00 / kg | 1kg | 98% | 1000000 | Hebei Jingbo New Material Technology Co., Ltd | |
 |
2021-08-31 | Dibasic Sodium Phosphate
7558-79-4
|
US $10.00 / KG | 1KG | 99.99% | 20 tons/month | Wuhan Monad Medicine Tech Co.,LTD |
-
- Sodium Phosphate, Dibasic
7558-79-4
- US $6.00 / kg
- 99%
- HebeiShuoshengImportandExportco.,Ltd
-
- Sodium Phosphate, Dibasic
7558-79-4
- US $0.00 / kg
- 98%
- Hebei Jingbo New Material Technology Co., Ltd
-
- Dibasic Sodium Phosphate
7558-79-4
- US $10.00 / KG
- 99.99%
- Wuhan Monad Medicine Tech Co.,LTD
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DINATRII PHOSPHAS DIHYDRICUS
DINATRII PHOSPHAS ANHYDRICUS
DISODIUM PHOSHATE
DI-SODIUM HYDROGEN ORTHOPHOSPHATE 2H2O
acetest
disodiumacidorthophosphate
disodiumacidphosphate