重铬酸钠二水合物

产品名称

重铬酸钠二水合物, for analysis EMSURE^® ACS

SMILES string

[Cr](=O)(=O)([O-])[O-].[Cr](=O)(=O)=O.[Na+].[Na+].O.O

InChI

1S/2Cr.2Na.2H2O.7O/h;;;;2*1H2;;;;;;;/q;;2*+1;;;;;;;;2*-1

InChI key

JYDRNIYTFCBIFC-UHFFFAOYSA-N

grade

ACS reagent

product line

EMSURE^®

assay

99.5-100.5% (iodometric)

form

solid

potency

50 mg/kg LD₅₀, oral (Rat)
1000 mg/kg LD₅₀, skin (Rabbit)

impurities

≤0.005% Insoluble matter

pH

3.5 (20 °C, 100 g/L in H₂O)

bp

400 °C/1013 hPa (decomposition)

mp

356.7 °C (anhydrous substance)

density

2.35 g/cm³ at 20 °C

bulk density

1200 kg/m³

anion traces

chloride (Cl^-): ≤0.002%
sulfate (SO₄^2-): ≤0.01%

cation traces

Al: ≤0.002%
Ca: ≤0.002%
Cu: ≤0.001%
Fe: ≤0.002%
K: ≤0.01%
Mg: ≤0.005%
Pb: ≤0.002%

storage temp.

2-30°C

Quality Level

300