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31218

Sigma-Aldrich

Calcium nitrate tetrahydrate

puriss. p.a., ACS reagent, 99-103%

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About This Item

Linear Formula:
Ca(NO3)2 · 4H2O
CAS Number:
13477-34-4
Molecular Weight:
236.15
EC Number:
233-332-1
MDL number:
MFCD00149604
UNSPSC Code:
12352302
PubChem Substance ID:
329753683
assay:
99-103%
form:
solid

grade

ACS reagent
puriss. p.a.

assay

99-103%

form

solid

impurities

≤0.0005% heavy metals (as Pb)
≤0.005% ammonium (NH4)
≤0.005% water-insoluble matter

pH

5.0-7.0 (20 °C, 5%)

mp

44 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤20 mg/kg
nitrite (NO2-): ≤10 mg/kg
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤20 mg/kg

cation traces

Ba: ≤50 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤100 mg/kg
Na: ≤100 mg/kg
Sr: ≤100 mg/kg

SMILES string

O.O.O.O.[Ca++].[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/Ca.2NO3.4H2O/c;2*2-1(3)4;;;;/h;;;4*1H2/q+2;2*-1;;;;

InChI key

ICSSIKVYVJQJND-UHFFFAOYSA-N

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Application

Calcium nitrate tetrahydrate may be used to prepare a molten solvent mixture of acetamide (80mol%) and calcium nitrate tetrahydrate (20mol%). The absorption spectra of Co(II) chloride complexes was studied in these molten mixtures.[1] It may be employed in the hydrothermal synthesis of rod-like hydroxyapatite.[2]

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Preparation and characterization of thermally stable nanohydroxyapatite.
Zhang S and Gonsalves KE.
Journal of Materials Science. Materials in Medicine, 8(1), 25-28 (1997)
The temperature dependence of transport properties of ionic liquids. The conductance and viscosity of calcium nitrate tetrahydrate and sodium thiosulfate pentahydrate.
Moynihan CT.
The Journal of Physical Chemistry, 70(11), 3399-3403 (1966)
Eagleson M.
Concise Encyclopedia Chemistry, 164-164 (1994)
Cobalt (II) chloride complex formation in acetamide-calcium nitrate tetrahydrate melts.
Savovic J, et al.
Journal of Solution Chemistry, 33(3), 287-300 (2004)
Mehdi Razavi et al.
Materials science & engineering. C, Materials for biological applications, 48, 21-27 (2015-01-13)
Although magnesium (Mg) is a unique biodegradable metal which possesses mechanical property similar to that of the natural bone and can be an attractive material to be used as orthopedic implants, its quick corrosion rate restricts its actual clinical applications.
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