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Key Documents

237124

Sigma-Aldrich

Calcium nitrate tetrahydrate

ACS reagent, 99%

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About This Item

Linear Formula:
Ca(NO3)2 · 4H2O
CAS Number:
Molecular Weight:
236.15
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NB.24

grade

ACS reagent

Assay

99%
99.0-103.0% (ACS specification)

form

flakes
powder, crystals or granules

impurities

≤0.005% insolubles

pH

5.0-7.0 (25 °C, 5%)

mp

44 °C (dec.) (lit.)

density

1.86 g/mL at 25 °C

anion traces

chloride (Cl-): ≤0.005%
nitrite (NO2-): ≤0.001%
sulfate (SO42-): ≤0.002%

cation traces

Ba: ≤0.005%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.05%
Na: ≤0.01%
Sr: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)

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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General description

Calcium nitrate tetrahydrate is an inorganic compound and can be used in cooling baths and wastewater management.

Application

Calcium nitrate tetrahydrate is used:
As a calcium precursor in the synthesis of nano-hydroxyapatite (HA) particles by sol-gel precipitation method along with potassium precursor potassium dihydrogen phosphate.
As a precursor along with diammonium hydrogen phosphate in the synthesis of nano-hydroxyapatite (n-HAP) by a wet chemical technique.
In the fabrication of 58S bioactive glass with the composition consisting of ternary system SiO2 (58 wt%) - CaO (33 wt%) - P2O5 (9wt%).

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Joana Moreira et al.
Molecules (Basel, Switzerland), 25(4) (2020-02-23)
Freestanding films based on catechol functionalized chitosan (CHI), hyaluronic acid (HA), and bioglass nanoparticles (BGNPs) were developed by spin-coating layer-by-layer assembly (SA-LbL). The catechol groups of 3,4-dihydroxy-l-phenylalanine (DOPA) present in the marine mussels adhesive proteins (MAPs) are the main factors
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)
Breno R Barrioni et al.
Journal of colloid and interface science, 547, 382-392 (2019-04-12)
Bioactive glass nanoparticles (BGNPs) are of great interest in tissue engineering as they possess high dissolution rate and capability of being internalized by cells, releasing their dissolution products with therapeutic benefits intracellularly. A modified Stöber process can be applied to

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