Home Categories Inorganic chemistry Sodium phosphate dibasic
A7320612

Sodium phosphate dibasic , 99.99%metalsbasis , 7558-79-4

Synonym(s):
Disodium phosphate;Sodium phosphate dibasic;Disodium hydrogen phosphate;Na?HPO?;Sodium hydrogenphosphate

CAS NO.:7558-79-4

Empirical Formula: HNa2O4P

Molecular Weight: 141.96

MDL number: MFCD00003496

EINECS: 231-448-7

Pack Size Price Stock Quantity
25G RMB38.40 In Stock
100G RMB80.00 In Stock
500G RMB227.20 In Stock
2.5kg RMB972.00 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 243-245 °C
Density  1.064 g/mL at 20 °C
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
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

Description and Uses

Sodium phosphate dibasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers. It is commonly used in biological assay buffers. Sodium is required for nerve and muscle functioning. Sodium Phosphate Dibasic can be used as a dietary supplement and as a nutrient. Sodium hydrogen phosphate is used in food and water treatment in conjunction with trisodium phosphate.In foods, it is used to adjust pH. In water treatment, It retards calcium scale formation. It is also found in some detergents and cleaning agents. This product is known to be Used in many applications including the purification of antibodies. It is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.

Sodium Phosphate Dibasic is used as an in conjunction with trisodium phosphate in foods and water treatment. In foods, it is used to adjust pH. In water treatment, It retards calcium scale formation. It is also found in some detergents and cleaning agents. Sodium Phosphate Dibasic is used as a saline laxative to treat constipation or to clean the bowel before a colonoscopy.

Safety

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
3
TSCA  Yes
HS Code  28352200
Toxicity LD50 orally in Rabbit: > 2000 mg/kg

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