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Merck
CN

71496

Sodium phosphate monobasic

purum p.a., anhydrous, ≥99.0% (T)

Synonym(s):

Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate

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About This Item

Linear Formula:
NaH2PO4
CAS Number:
Molecular Weight:
119.98
PubChem Substance ID:
eCl@ss:
38070208
UNSPSC Code:
12161700
NACRES:
NA.25
EC Number:
231-449-2
MDL number:
Technical Service
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Quality Level

grade

anhydrous, purum p.a.

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

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.


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flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Storage Class

11 - Combustible Solids



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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)
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)



Global Trade Item Number

SKUGTIN
71496-1KG04061835541638
71496-250G04061835541645