Sodium Phosphate, Dibasic CAS#7558-79-4
Buffer Solution Preparation: Sodium phosphate dibasic is commonly used in combination with sodium phosphate monobasic to create organic buffer solutions, essential for various biochemical assays.
Nutrient Source: It serves as a vital dietary supplement, providing sodium, which is crucial for nerve and muscle function.
Water Treatment and Food Processing: It plays a significant role in water treatment and food processing, often paired with trisodium phosphate for enhanced effectiveness.
High Solubility and Stability: Sodium phosphate dibasic is highly soluble in water and stable under normal storage conditions, making it reliable for various applications.
Sodium phosphate dibasic is highly hygroscopic and readily soluble in water. It is commonly used together with sodium phosphate monobasic to prepare organic buffer solutions, making it essential in many biochemical assays.
Sodium plays a crucial role in nerve and muscle function, and sodium phosphate dibasic serves as both a dietary supplement and nutrient source. Additionally, sodium hydrogen phosphate is applied in food processing and water treatment, often combined with trisodium phosphate for enhanced effectiveness.
Parameters
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 | |
color | White |
Odor | odorless |
PH | 8.9-9.2 (25℃, 50g/L in water) |
pka | (1) 2.15, (2) 6.82, (3) 12.38 (at 25℃) |
biological source | synthetic |
Water Solubility | >=10 g/100 mL at 20 ºC |
λmax | λ: 260 nm Amax: 0.019 |
Sensitive | Hygroscopic |
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) |
EPA Substance Registry System | Disodium phosphate (7558-79-4) |
Absorption | ≤0.01 at 260nm |
Safety Information
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 |
