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71283

Sigma-Aldrich

Ammonium sodium phosphate dibasic tetrahydrate

puriss. p.a., ≥99.0% (NT)

Synonym(s):

sec-Sodium ammonium phosphate, Ammonium sodium hydrogen phosphate, Sodium ammonium hydrogen phosphate

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About This Item

Linear Formula:
NaNH4HPO4 · 4H2O
CAS Number:
7783-13-3
Molecular Weight:
209.07
MDL number:
MFCD00066970
UNSPSC Code:
12352300
PubChem Substance ID:
329763154

grade

puriss. p.a.

Assay

≥99.0% (NT)

form

crystals

solubility

water: soluble(lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ag: ≤5 mg/kg
Al: ≤5 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤10 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Tl: ≤10 mg/kg
Zn: ≤5 mg/kg

SMILES string

[NH4+].[Na+].OP([O-])([O-])=O

InChI

1S/H3N.Na.H3O4P.4H2O/c;;1-5(2,3)4;;;;/h1H3;;(H3,1,2,3,4);4*1H2/q;+1;;;;;/p-1

InChI key

IQTQISLCLWJRPM-UHFFFAOYSA-M

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General description

Ammonium sodium phosphate dibasic tetrahydrate (Ammonium sodium hydrogen phosphate) is a colorless ammonium salt. On heating, it undergoes decomposition to afford sodium polyphosphate.[1]

Application

Ammonium sodium phosphate dibasic tetrahydrate (Sodium ammonium phosphate tetrahydrate) may be used in the following studies:
  • To compose the growth medium during the biocatalytic synthesis of 4-fluorocatechol.[2]
  • Preparation of microcosmic salt beads, which are used in qualitative analysis.[1]

Other Notes

Reagent for the decomposition of barium sulfate in phosphate salt beads[3][4]

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

71283-VAR:
71283-1KG:
71283-BULK:
71283-250G:
71283-VAR-D:

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Z. Sulcek et al.
Methods of Decomposition in Inorganic Analysis (1989)
R. Bock
Aufschlussmethoden der anorg. & org. Chemie (1972)
12.7 The Biocatalytic Synthesis of 4-Fluorocatechol from Fluorobenzene.
Whittall J and Sutton P.
Practical Methods for Biocatalysis and Biotransformations, 379-379 (2009)
Eagleson M.
Concise Encyclopedia Chemistry, 67-67 (1994)
Caryn Wadler et al.
Analytical biochemistry, 368(1), 17-23 (2007-07-03)
A new approach to determine in vivo pools of coenzyme A (CoA) and short chain acyl-CoA thioesters is reported. The metabolites released by extraction with trichloroacetic acid are recovered and quantitatively dephosphorylated by treatment with shrimp alkaline phosphatase. Following phosphatase

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