Monosodium Phosphate

Other Trading Names:

  • Sodium Dihydrogen Phosphate
  • Sodium Phosphate Monobasic
  • Sodium Acid Phosphate
  • Acid Sodium Phosphate
  • Monosodium Dihydrogen Orthophosphate
  • NaH2PO4
  • Sodium Phosphate

CAS Number: 7558-80-7

HS Code: 28352200

Types of Packaging:

  • 25 Kg Net Bags
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Availability: In stock
Monosodium Phosphate

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Chemical Name

Monosodium Phosphate/ Sodium Dihydrogen Phosphate

Cas Number



White Crystalline Powder



Molecular Formula


Molecular Weight

119.97 g/mol

Melting Point


Boiling Point




Water Solubility

Soluble in Water


99% min

Chemical Description

  • Monosodium phosphate is a colorless crystal or white crystalline powder, and it is odorless.
  • It is soluble in water; its aqueous solution is acidic and almost insoluble in ethanol.
  • The heating loss of crystalline water can be decomposed into acid sodium pyrophosphate (Na3H2P2O7).
  • It is often used in the fermentation industry to adjust pH, and food processing with disodium hydrogen phosphate is used to improve food quality.
  • It is also used to improve the thermal stability of dairy products, fish products, acidity regulators, and knot agents.
  • It is added to different food items, such as bakery products, soft drinks (dry-mix) formulations, carbonated beverages, processed cheese, seafood, and many other products, due to its capacity to regulate acidity, act as a buffer, and adjust the pH.
  • It is used as a fireproofing agent in fertilizers and wood, paper, and fabrics (e.g., as an ember extinguisher in match sticks and candle wicks).
  • Due to its pH-regulating capacity, it is widely used in food additive starter cultures and as a nutrient fortifier.
  • Monosodium phosphate is also used in the feed industry as a feed additive for ruminants.
  • This white crystalline chemical is used in pharmaceutical formulations as a pH buffer, in intravenous medications, and in some oral tablets.
  • Mostly used in molecular biology and biochemical experiments as a buffer.
  • It is used as a pH regulator and buffering agent in some of the cosmetics formulations.
  • MSP is used in water treatment plants, boilers, and water distribution systems to inhibit scale formation and corrosion.
  • It is an essential part of household or industrial cleaning products, helping to remove deposited scales and rust in various places.
  • It is a food, agriculture, and industrial-grade chemical available in 25 Kg net bags with dimensions 10X10X5 cm.
  • Monosodium Phosphate is a nonhazardous chemical, stable under normal conditions, and recommended for direct consumption.
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Monosodium Phosphate