1.02481

Chromium(III) nitrate nonahydrate

for analysis EMSURE^®

• Synonym(s): Chromium(III) nitrate nonahydrate, Chromic Nitrate
• Linear Formula: Cr(NO₃)₃ · 9H₂O
• CAS Number: 7789-02-8
• Molecular Weight: 400.15
• UNSPSC Code: 12352302
• EC Index Number: 236-921-1
• NACRES: NA.21
• MDL number: MFCD00149659
• Assay: ≥98.0% (iodometric)
• Form: solid
• Solubility: 810 g/L

Properties

• Quality Segment: 300
• product line: EMSURE^®
• assay: ≥98.0% (iodometric)
• form: solid
• potency: 3250 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.05% Substances not precipitated by ammonia (as sulfates)
• pH: 2-3 (20 °C, 50 g/L in H₂O)
• mp: 36-37 °C
• solubility: 810 g/L
• bulk density: 710 kg/m³
• anion traces: chloride (Cl^-): ≤0.002%, sulfate (SO₄^2-): ≤0.005%
• cation traces: Cu: ≤0.001%, Fe: ≤0.01%, NH₄⁺: ≤0.002%
• storage temp.: 15-25°C
• SMILES string: [Cr](O[N+](=O)[O-])(O[N+](=O)[O-])O[N+](=O)[O-]
• InChI: 1S/Cr.3NO3/c;3*2-1(3)4/q+3;3*-1
• InChI key: PHFQLYPOURZARY-UHFFFAOYSA-N

Description

Analysis Note

Assay (iodometric): ≥ 98.0 %
pH-value (5 %; water): 2.0 - 3.0
Chloride (Cl): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.005 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.01 %
NH₄ (Ammonium): ≤ 0.002 %
Substances not precipitated by ammonia (as sulfates): ≤ 0.05 %

Legal Information

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

Safety Information

• pictograms: GHS03,GHS07
• signalword: Warning
• hcodes: H272 - H315 - H317 - H319 - H412
• pcodes: P210 - P220 - P273 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Aquatic Chronic 3 - Eye Irrit. 2 - Ox. Sol. 3 - Skin Irrit. 2 - Skin Sens. 1B
• Storage Class: 5.1B - Oxidizing hazardous materials
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable