RDD007

Sodium phosphate monobasic

anhydrous, free-flowing, Redi-Dri^™, ≥99.0%

• Synonym(s): Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate
• Linear Formula: NaH₂PO₄
• CAS Number: 7558-80-7
• Molecular Weight: 119.98
• EC Number: 231-449-2
• MDL number: MFCD00003527
• UNSPSC Code: 12161700
• PubChem Substance ID: 329824218
• NACRES: NA.25

Properties

• grade: anhydrous
• product line: Redi-Dri^™
• Assay: ≥99.0%
• form: powder
• quality: free-flowing
• pH: 4.0-4.5 (25 °C, 50 g/L in water)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• SMILES string: [Na+].OP(O)([O-])=O
• InChI: 1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• InChI key: AJPJDKMHJJGVTQ-UHFFFAOYSA-M

Description

General description

Sodium phosphate is a salt of sodium hydroxide and phosphoric acid. It is commonly used in buffers for molecular biology applications. It can also be used as a catalyst in some organic reactions.

Application

Sodium phosphate monobasic can be used:

• As a catalyst in the synthesis of non-ionic surfactants used for adhesive and detergent applications.
• As a component of phosphate buffer saline (PBS buffer) used in the study of glucose biosensor.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable