Sodium Phosphate Dibasic CAS#7558-79-4

Sodium Phosphate Dibasic CAS#7558-79-4

Basic Information

Excellent Water Solubility & Hygroscopicity:Highly soluble and moisture-absorbing, ensuring rapid dissolution and stable performance in formulations.


Ideal Buffer Component:Commonly used with sodium phosphate monobasic to prepare reliable organic and biochemical buffer systems.


Nutritional & Physiological Support:Provides essential sodium and phosphate for normal nerve and muscle function and can be used as a dietary supplement.


Wide Food & Water Treatment Applications:Applied in food processing and water treatment, often in combination with trisodium phosphate for effective conditioning.


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product description

Product Description of ‌Sodium Phosphate Dibasic CAS#7558-79-4

Sodium phosphate dibasic is a highly hygroscopic, water-soluble salt. Used with sodium phosphate monobasic to make buffers for biochemical/analytical assays, it serves as a sodium/phosphate nutritional supplement and is applied in food processing and water treatment (often with trisodium phosphate).


Product Application of Sodium Phosphate Dibasic CAS#7558-79-4

Sodium phosphate dibasic is a laboratory reagent and buffering agent used in ceramics, detergents, enamels, textile dyeing, fireproofing, silk processing and boiler water treatment. It also serves as a food sequestrant, nutritional supplement, fertilizer component, soldering enamel ingredient and mild laxative.


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Product Information

Parameters


Melting point243-245 °C
density1.064 g/mL at 20 °C
bulk density880kg/m3
vapor density4.9 (vs air)
vapor pressure0Pa at 20℃
FEMA2398 | DISODIUM PHOSPHATE
storage temp.Store at +5°C to +30°C.
solubilityH2O: 0.5 M at 20 °C, clear, colorless
formpowder
colorWhite
Odorodorless
PH8.9-9.2 (25℃, 50g/L in water)
pka(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
biological sourcesynthetic
Water Solubility>=10 g/100 mL at 20 ºC
λmaxλ: 260 nm Amax: 0.019
λ: 280 nm Amax: 0.016
SensitiveHygroscopic
Merck148,659
Stability:Stable. Incompatible with strong acids. Hygroscopic.
InChIKeyBNIILDVGGAEEIG-UHFFFAOYSA-L
LogP-2.15
CAS DataBase Reference7558-79-4(CAS DataBase Reference)
EPA Substance Registry SystemDisodium phosphate (7558-79-4)
Absorption≤0.01 at 260nm
≤0.01 at 280nm


Safety Information


Hazard CodesXi
Risk Statements36/37/38
Safety Statements26-36-24/25
RIDADRUN 3077 9 / PGIII
WGK Germany3
RTECSWC4500000
F3
TSCAYes
HS Code28352200
Hazardous Substances Data7558-79-4(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: > 2000 mg/kg


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FAQ

1. What kind of company is Bohai New Materials?
Bohai New Materials (Tianjin) Co., Ltd. is a foreign trade company specializing in the international trade of chemical products, located in the Binhai New Area of ​​Tianjin. Leveraging the strategic location of Tianjin Port, the company provides one-stop procurement and export services to global clients for a wide range of products, including plastic resins, basic chemical raw materials, fine chemicals, chemical fiber raw materials, and inorganic chemicals.


2. Which markets does the company serve?
Our products are primarily exported to Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia), the Middle East (UAE, Saudi Arabia), Africa (Nigeria, Kenya), as well as Europe and the Americas.


3. Does the company have the qualifications to export hazardous chemicals?
Yes. We hold a valid license for the operation of hazardous chemicals and are well-versed in the export declaration, packaging, documentation, and transportation requirements for various types of hazardous goods. We are capable of handling the export of Class 3, Class 5, Class 8, and Class 9 hazardous chemicals.


4. What are the company's main products?
Our core product portfolio includes:
Plastic resins: PP, PE, PVC, ABS, PC, POM, etc.
Basic chemical raw materials: Soda ash, caustic soda, titanium dioxide, methanol, styrene, ethylene glycol, PTA, etc.
Fine chemicals: Pharmaceutical intermediates, pesticide intermediates, chemical additives, solvents, surfactants.
Chemical fiber raw materials: Polyester filament, polyester staple fiber, polyester chips (PET).
Inorganic chemicals: Calcium carbonate, talc powder, sodium sulfate, calcium chloride, magnesium chloride, etc.
Others: Paraffin wax, white oil, petroleum jelly (Vaseline), rubber, water treatment chemicals, etc.
If you have specific product requirements, please feel free to contact us; we will quickly source high-quality products to meet your needs.


5. How can I obtain a product quote? What information is required?
You can contact us via our official website, by phone, or by email. To ensure a quick and accurate quote, please provide the following details: product name and specifications, target purchase quantity, destination port, and desired delivery time. Please also inform us of any special packaging or testing requirements.

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