grade

ACS reagent

Quality Level

300

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE^®

Assay

≥99.0% (acidimetric)
≥99.0% dry basis (acidimetric)

form

solid

potency

>2000 mg/kg LD₅₀, oral (Rat)

impurities

≤0.005% Insoluble matter
≤0.01% Substances precipitated by ammonia

loss

≤1% loss on drying, 300 °C

pH

11.5-12.5 (20 °C, 50 g/L in H₂O)

mp

891 °C

density

2.43 g/cm³ at 20 °C

bulk density

750 kg/m³

anion traces

chloride (Cl^-): ≤0.003%
phosphate (PO₄^3-): ≤0.001%
silicate (as SiO₂): ≤0.005%
sulfur compounds (as SO₄^2-): ≤0.003%

cation traces

Ca: ≤0.002%
Cu: ≤0.0005%
Fe: ≤0.0005%
Mg: ≤0.001%
N: ≤0.001%
Na: ≤0.02%
Pb: ≤0.0005%
heavy metals: ≤0.0005%

storage temp.

2-30°C

InChI

1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

BWHMMNNQKKPAPP-UHFFFAOYSA-L