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71496

Sigma-Aldrich

Sodium phosphate monobasic

purum p.a., anhydrous, ≥99.0% (T)

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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
eCl@ss:
38070208
PubChem Substance ID:
329763329
NACRES:
NA.25

grade

anhydrous
purum p.a.

Quality Level

200

Assay

≥99.0% (T)

form

crystals

pH

4.0-4.5 (25 °C, 50 mg/mL in H2O)

solubility

water: 0.5 g/10 mL, clear, colorless

anion traces

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤500 mg/kg

cation traces

Ca: ≤200 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤300 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

application(s)

sample preparation

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

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General description

Sodium phosphate monobasic is an effective oral osmotic laxative at minimal concentration. It is used for colonic cleansing before endoscopic examination of colon.

Application

Sodium phosphate monobasic has been used:
  • as an inorganic phosphate source in cell culture media.
  • in preparation of phosphate buffered saline.
  • in preparation of phosphate buffer in glucose assay.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Microcalcifications in breast cancer: novel insights into the molecular mechanism and functional consequence of mammary mineralisation
Cox RF, et al.
British Journal of Cancer, 106(3), 525-525 (2012)
The safety profile of oral sodium phosphate for colonic cleansing before colonoscopy in adults
Hookey LC, et al.
Gastrointestinal Endoscopy, 56(6), 895-902 (2002)
Semiautomated correlative 3D electron microscopy of in vivo-imaged axons and dendrites
Maco B, et al.
Nature Protocols, 9(6), 1354-1354 (2014)
A simple microplate-based method for the determination of alpha-amylase activity using the glucose assay kit (GOD method)
Visvanathan R, et al.
Food Chemistry, 211, 853-859 (2016)
Bowel preparation for colonoscopy with sodium phosphate solution versus polyethylene glycol-based lavage: a multicenter trial
Schanz S, et al.
Diagnostic and therapeutic endoscopy., 2008 (2008)
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