grade

eluent additive for LC-MS

Quality Level

100

description

anionic

Assay

≥99.0% (calc. on dry substance, NT)
≥99.0%

form

crystals

quality

LiChropur^™

technique(s)

LC/MS: suitable

impurities

insoluble matter, passes filter test
<2% water

ign. residue (900 °C)

<0.1% (as SO₄)

pH

5.5-7.5 (25 °C, 1 M in H₂O)

mp

119-121 °C (lit.)

solubility

H₂O: 1 M at 20 °C, clear, colorless

density

1.26 g/mL at 25 °C (lit.)

anion traces

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

cation traces

Al: ≤1 mg/kg
As: ≤0.1 mg/kg
Ba: ≤1 mg/kg
Bi: ≤1 mg/kg
Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤5 mg/kg
Li: ≤1 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Mo: ≤1 mg/kg
Na: ≤5 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤1 mg/kg
Zn: ≤1 mg/kg

λ

1 M in H₂O

UV absorption

λ: 260 nm A_max: ≤0.01
λ: 280 nm A_max: ≤0.01

SMILES string

N.OC=O

InChI

1S/CH2O2.H3N/c2-1-3;/h1H,(H,2,3);1H3

InChI key

VZTDIZULWFCMLS-UHFFFAOYSA-N