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Key Documents

1.06682

Supelco

Sodium ammonium hydrogen phosphate tetrahydrate

for analysis EMSURE®

Synonym(s):

Sodium ammonium hydrogen phosphate tetrahydrate, Ammonium sodium hydrogen phosphate, Microcosmic salt

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1 KG
$348.00

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1 KG
$348.00

About This Item

Empirical Formula (Hill Notation):
H5NNaO4P · 4H2O
CAS Number:
Molecular Weight:
209.07
MDL number:
UNSPSC Code:
12352302
EC Index Number:
235-860-8
NACRES:
NA.21
assay:
≥99.0% (acidimetric)
form:
solid
solubility:
167 g/L

$348.00


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Packaging: HDPE bottle

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Quality Level

product line

EMSURE®

assay

≥99.0% (acidimetric)

form

solid

pH

8.3 (20 °C, 50 g/L in H2O)

mp

79 °C

solubility

167 g/L

density

0.85 g/cm3 at 20 °C

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

cation traces

As: ≤0.00005%
Fe: ≤0.0005%
K: ≤0.001%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

SMILES string

[Na+].[P](=O)([O-])(O)O.N.O.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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1 of 4

This Item
1.932091.06559S4172
form

solid

form

-

form

solid

form

-

assay

≥99.0% (acidimetric)

assay

-

assay

≥99.0% (acidimetric)

assay

≥99%

solubility

167 g/L

solubility

-

solubility

77 g/L

solubility

H2O: 1 M, clear, colorless

Quality Level

300

Quality Level

-

Quality Level

300

Quality Level

200

anion traces

chloride (Cl-): ≤0.001%, sulfate (SO42-): ≤0.005%

anion traces

-

anion traces

chloride (Cl-): ≤0.002%, sulfate (SO42-): ≤0.005%

anion traces

chloride (Cl-): ≤0.05%, sulfate (SO42-): ≤0.05%

pH

8.3 (20 °C, 50 g/L in H2O)

pH

-

pH

8.7-9.3 (20 °C, 10 g/L in H2O)

pH

-

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Chloride (Cl): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.00005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.001 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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