HNa2O4P
141.959 g/mol
Food AdditiveWarning
Sodium phosphate dibasic
CAS7558-79-4EC231-448-7
Category
Food Additive
Compound Class
Inorganic Salt
Primary Use
buffering agent and food additive
Disodium phosphate, also known as sodium phosphate dibasic, is an inorganic compound that exists in anhydrous and various hydrated forms. It is commonly used as a buffering agent and food additive to regulate acidity and maintain stability in food products.
buffering agentfood additive
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Dicalcium phosphate
CAS7757-93-9
mineral supplement and leavening agent
StrongSame Parent
Dibasic potassium phosphate
CAS7758-11-4
buffering agent and emulsifier
StrongSame Parent
Dibasic trihydratemagnesium phosphate
CAS7782-75-4
mineral compound
StrongSame Parent
Heptahydratedibasicsodium phosphate
CAS7782-85-6
food sequestrant emulsifier and buffer
ReferenceSame Category
Betadex
CAS7585-39-9
thickening and encapsulation agent
ReferenceSame Category
Sodium hydrogen sulfite
CAS7631-90-5
Food preservative and disinfectant
ReferenceSame Category
Ammonium citrate
CAS7632-50-0
food acidity regulator
ReferenceSame Category
Sodium chloride
CAS7647-14-5
Food condiment and preservative
Safety Reference
Warning
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for Sodium phosphate dibasic (CAS 7558-79-4) is 2835.22.
HS code (international, 6-digit)
2835.22
EU CN code (8-digit)
2835 22 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
disodium;hydrogen phosphate
InChIKey
BNIILDVGGAEEIG-UHFFFAOYSA-L
SMILES
OP(=O)([O-])[O-].[Na+].[Na+]
Synonyms (72)
- DSP
- DIBASIC SODIUM PHOSPHATE (USP MONOGRAPH)
- DISODIUM PHOSPHATE (EP MONOGRAPH)
- SODIUM PHOSPHATE, DIBASIC (USP IMPURITY)
- Acetest
- Caswell No. 778
- DISODIUM PHOSPHATE
- DISODIUM PHOSPHATE (NA2HPO4)
- Diabasic Sodium Phosphate
- Dibasic sodium phosphate
- Disodium acid orthophosphate
- Disodium acid phosphate
- Disodium hydrogen phosphate
- Disodium hydrophosphate
- Disodium orthophosphate
- Disodium phospahte
- Disodium phosphate, anhydrous
- Disodium phosphoric acid
- E-339(II)
- EXCICCATED SODIUM PHOSPHATE
- Exsiccated sodium phosphate
- FEMA No. 2398
- FEMA Number 2398
- Fleet enema
- Hydrogen disodium phosphate
- INS NO.339(II)
- NAT. PHOS.
- Natriumphosphat
- Natriumphosphat [German]
- Phosphate of soda
- SODIUM ORTHOPHOSPHATE DIBASIC
- SODIUM PHOSPHATE (NA2HPO4)
- SODIUM PHOSPHATE,
- Soda phosphate
- Sodium hydrogen phosphate
- Sodium monohydrogen phosphate
- Sodium phophate, dibasic
- Sodium phosphate (NaHPO4)
- Sodium phosphate dibasic
- Sodium phosphate, exsiccated
- Sorensen's sodium phosphate
- secondary Sodium phosphate
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