Quality Level

200

grade

puriss.

assay

99.0-100.5%
99.0-101.0% (calc. on dry substance)

form

solid

quality

meets analytical specification of Ph. Eur., BP, USP

impurities

alkalic reac. substances, complies
≤0.001% heavy metals (as Pb)
≤0.04% insoluble in ethanol
≤0.05% ammonium (NH₄)
≤0.1% biuret(carbamylurea)

ign. residue

≤0.1% (as SO₄)

loss

≤1.0% loss on drying, 105 °C, 1 h

mp

132-135 °C (lit.)
132-135 °C

solubility

H₂O: soluble 480 g/L at 20 °C

density

1.335 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤10 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

cation traces

Fe: ≤0.5 mg/kg

suitability

in accordance for appearance of solution
in accordance for identity

SMILES string

NC(N)=O

InChI

1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N