Sodium Bicarbonate

EP, USP + LEC + Microbiological requirements

CAS #:


Molecular Formula:



Sodium Hydrogen Carbonate, Baking Soda.

Molecular Weight:

84.01 g/mol


Sodium bicarbonate reduces stomach acid. It is used as an antacid to treat heartburn, indigestion, and upset stomach. Sodium bicarbonate is a very quick-acting antacid. It is a white solid that often appears as a fine powder. It is an amphoteric compound and is used in a wide host of manners. Commonly used in household cooking as a leavening agent it can also be found in fire extinguishers. In the laboratory it is used to react with both acids and bases due to its amphoteric properties.

Characters Unit Specification
Identity A (EP, BP) Acc to requirements
Identity B (EP, BP) Acc to requirements
Identity C (EP, BP) Acc to requirements
Identity A (USP) Acc to requirements
Identity B (USP) Acc to requirements
Residual Solvents (EP, BP) Correlates to test
residual Solvents (USP) Correlates to test
Appearance of solution (EP, BP) Correlates to test
Normal Carbonates (USP) Correlates to test
Carbonates (Ph Eur) <=8,60
Insoluble substances (USP) Correlates to test
Assay (EP,BP) % 99,0 - 101,0
Assay (USP) % 99,0 - 100,5
Loss on drying % <=0,25
Heavy metals (as Pb) (EP,BP) mg/kg <=10,0
heavy metals (USP) mg/kg <=5,0
Ammonium (USP) mg/kg <=20,0
Ammonium (EP, BP) mg/kg <=20,0
Sulphur Compounds (USP) mg/kg <=150,0
Calcium (EP, BP) mg/kg <=100,0
Arsenic (USP) mg/kg <=2,0
Arsenic (EP, BP) mg/kg <=2,0
Chlorides (USP) mg/kg <=150,0
Chlorides (EP, BP) mg/kg <=150,0
Iron (EP, BP) mg/kg <=20,0
Sulfates (EP< BP) mg/kg <=150,0
Bacterial endotoxins IU/g <=5,000
TAMC 30oC (Total aerobic microbial count) cfu/g <=100
TYMC cfu/g <=10
Escherichia Coli cfu/g
Staphylococcus aureus cfu/g
Pseudomonas aeruginosa cfu/g
Salmonella cfu/25g

Shelf Life/Retest Date: Sodium Bicarbonate can be kept for at least 2 years if stored in a cool and dry place.

Storage/Shipping Conditions:

  • Keep container tightly closed in a cool, well-ventilated place.
  • Storage temperature recommended: < 25°C

Pack Sizes: 0.5 Kg and 5 Kg.

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