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1.06370

Supelco

Sodium dihydrogen phosphate

anhydrous 99.99 Suprapur®

Synonym(s):
Sodium dihydrogen phosphate, Sodium biphosphate
Empirical Formula (Hill Notation):
H2NaO4P
CAS Number:
Molecular Weight:
119.98
MDL number:
EC Index Number:
231-449-2

grade

for inorganic trace analysis

Quality Level

assay

99.99%

form

crystals

potency

8290 mg/kg LD50, oral (Rat)
>7940 mg/kg LD50, skin (Rabbit)

pH

4.5 (20 °C, 10 g/L in H2O)

solubility

850 g/L

bulk density

940 kg/m3

storage temp.

2-30°C

Related Categories

Analysis Note

Purity (metallic): ≥ 99.99 %
Assay (acidimetric): ≥ 99.0 %
Spec. Absorbance A at 260 nm (2 cm; 10 %): ≤ 0.020
Chloride (Cl): ≤ 5 ppm
Sulfate (SO₄): ≤ 30 ppm
Total nitrogen (N): ≤ 10 ppm
As (Arsenic): ≤ 0.05 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
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): ≤ 5.0 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 1.0 ppm
Mg (Magnesium): ≤ 0.50 ppm
Mn (Manganese): ≤ 0.010 ppm
Ni (Nickel): ≤ 0.010 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): ≤ 0.010 ppm

Legal Information

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificate of Quality

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