237124

Calcium nitrate tetrahydrate

ACS reagent, 99%

• Linear Formula: Ca(NO₃)₂ · 4H₂O
• CAS Number: 13477-34-4
• Molecular Weight: 236.15
• NACRES: NB.24
• PubChem Substance ID: 329752445
• UNSPSC Code: 12352300
• EC Number: 233-332-1
• MDL number: MFCD00149604
• Assay: 99%, 99.0-103.0% (ACS specification)
• Grade: ACS reagent
• Form: flakes, powder, crystals or granules

Properties

• grade: ACS reagent
• Quality Segment: 200
• 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 (SO₄^2-): ≤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

Description

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%).

Safety Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H302,H318
• pcodes: P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1
• Storage Class: 13 - Non Combustible Solids
• flash_point_f: Not applicable
• flash_point_c: Not applicable