Sodium phosphate monobasic
SIAL/S0751 - ReagentPlus®, ≥99.0%
Synonym: Monosodium dihydrogen orthophosphate; Monosodium phosphate; Sodium dihydrogen phosphate
CAS Number: 7558-80-7
Empirical Formula (Hill Notation): H2NaO4P
Molecular Weight: 119.98
EC Number: 231-449-2
MDL Number: MFCD00003527
Linear Formula: NaH2PO4
Product Type: Chemical
application(s) | detection |
assay | ≥99.0% |
form | powder |
InChI | 1S/Na.H3O4P/c;1-5(2,3)4/h |
InChI key | AJPJDKMHJJGVTQ-UHFFFAOYSA |
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) |
product line | ReagentPlus® |
Quality Level | 200 ![]() |
SMILES string | [Na+].OP(O)([O-])=O |
solubility | water: 100 mg/mL, clear, colorless |
technique(s) | DNA extraction: suitable |
electrophoresis: suitable | |
immunocytochemistry: suitable |
Application: | Sodium phosphate monobasic has been used: • as a reagent for virus transfection and fiber implantation in mouse • in phosphate buffer for immunocytochemistry and to detect individual catalase activity by PAGE (polyacrylamide gel electrophoresis) • as a buffer for cycling assay • in automated DNA extraction method • as a chemical in artificial cerebro-spinal fluid (aCSF) solution for the preparation of brainstem-spinal cord from rats |
General description: | Sodium phosphate monobasic acts as an acidulant in laxatives and effervescent powders. It is used in beverages, cheese and soft drink formulations. |
Legal Information: | ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC |
Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
Other Notes: | Go to Redi-Dri™ Product Listing RDD007 ![]() |
Packaging: | 1 kg in poly bottle |
Packaging: | 100, 500 g in poly bottle |
Packaging: | 3 kg in poly drum |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.0% |
UNSPSC | 12161700 |