Merck
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1.02123

Supelco

Calcium nitrate tetrahydrate

99.95 Suprapur®

Synonym(s):
Calcium nitrate tetrahydrate
Linear Formula:
Ca(NO3)2 · 4 H2O
CAS Number:
Molecular Weight:
236.15
MDL number:
EC Index Number:
233-332-1

Quality Level

grade

for inorganic trace analysis

assay

99.95%

form

solid

potency

3900 mg/kg LD50, oral (Rat)

pH

5.0-7.0 (25 °C, 50 g/L in H2O)

mp

45 °C

solubility

2710 g/L

density

1.82 g/cm3 at 20 °C

bulk density

1000 kg/m3

storage temp.

2-30°C

InChI

1S/Ca.2HNO3.4H2O/c;2*2-1(3)4;;;;/h;2*(H,2,3,4);4*1H2/q+2;;;;;;

InChI key

DKCJOKYHYIAZQH-UHFFFAOYSA-N

Related Categories

Analysis Note

Purity (metallic): ≥ 99.95 %
Assay (complexometric): ≥ 99.0 %
Chloride (Cl): ≤ 20 ppm
Phosphate (PO₄): ≤ 10 ppm
Sulfate (SO₄): ≤ 20 ppm
Al (Aluminium): ≤ 0.05 ppm
Ba (Barium): ≤ 5 ppm
Cd (Cadmium): ≤ 0.005 ppm
Ce (Cerium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.005 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.005 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.05 ppm
Hg (Mercury): ≤ 0.010 ppm
K (Potassium): ≤ 1.0 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 2.0 ppm
Mg (Magnesium): ≤ 2.0 ppm
Mn (Manganese): ≤ 0.010 ppm
Na (Sodium): ≤ 5 ppm
Ni (Nickel): ≤ 0.010 ppm
Pb (Lead): ≤ 0.010 ppm
Rb (Rubidium): ≤ 10 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 50 ppm
Tl (Thallium): ≤ 0.005 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

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

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