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1.06566

Sodium phosphate dibasic

Name: Sodium phosphate dibasic
Brand: MM

anhydrous 99.99 Suprapur^®

Synonym(s):

Sodium phosphate dibasic, di-Sodium hydrogen phosphate, sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate

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About This Item

Linear Formula:

Na₂HPO₄

CAS Number:

7558-79-4

Molecular Weight:

141.96

NACRES:

NB.21

EC Index Number:

231-448-7

UNSPSC Code:

12352302

MDL number:

MFCD00003496

Assay:

99.99%

Form:

solid

Solubility:

77 g/L

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Properties

Quality Level

100

description

for inorganic trace analysis

assay

99.99%

form

solid

potency

>2000 mg/kg LD₅₀, oral (Rat)

pH

8.7-9.3 (20 °C, 10 g/L in H₂O)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

mp

250 °C (decomposition)

solubility

77 g/L

bulk density

880 kg/m³

storage temp.

2-30°C

InChI

1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

InChI key

BNIILDVGGAEEIG-UHFFFAOYSA-L

Description

Analysis Note

Purity (metallic): ≥ 99.99 %

Assay (acidimetric): ≥ 99.0 %

Chloride (Cl): ≤ 5 ppm

Sulfate (SO₄): ≤ 30 ppm

Total nitrogen (N): ≤ 10 ppm

As (Arsenic): ≤ 0.1 ppm

Ba (Barium): ≤ 10.0 ppm

Ca (Calcium): ≤ 0.50 ppm

Cd (Cadmium): ≤ 0.010 ppm

Ce (Cerium): ≤ 0.010 ppm

Co (Cobalt): ≤ 0.010 ppm

Cr (Chromium): ≤ 0.050 ppm

Cs (Cesium): ≤ 5 ppm

Cu (Copper): ≤ 0.010 ppm

Eu (Europium): ≤ 0.010 ppm

Fe (Iron): ≤ 0.05 ppm

Hg (Mercury): ≤ 0.05 ppm

K (Potassium): ≤ 2.0 ppm

La (Lanthanum): ≤ 0.010 ppm

Li (Lithium): ≤ 1.0 ppm

Mg (Magnesium): ≤ 0.10 ppm

Mn (Manganese): ≤ 0.010 ppm

Ni (Nickel): ≤ 0.050 ppm

Pb (Lead): ≤ 0.010 ppm

Rb (Rubidium): ≤ 5.0 ppm

Sm (Samarium): ≤ 0.010 ppm

Sr (Strontium): ≤ 0.50 ppm

Tl (Thallium): ≤ 0.01 ppm

Y (Yttrium): ≤ 0.010 ppm

Yb (Ytterbium): ≤ 0.010 ppm

Zn (Zinc): ≤ 0.050 ppm

Legal Information

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

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c