无水碳酸钠

产品名称

无水碳酸钠, anhydrous, for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

InChI

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

SMILES string

O=C(O[Na])O[Na]

InChI key

CDBYLPFSWZWCQE-UHFFFAOYSA-L

grade

ACS reagent

agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE^®

assay

≥99.9% dry basis (acidimetric)

form

powder

potency

4090 mg/kg LD₅₀, oral (Rat)

impurities

≤0.01% Insoluble matter

loss

≤1% loss on drying, 300 °C

pH

11.16 (25 °C, 4 g/L in H₂O)

mp

851 °C (lit.)

density

2.53 g/cm³ at 20 °C

bulk density

1100 kg/m³

anion traces

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

cation traces

Al: ≤0.001%
As: ≤0.0001%
Ca: ≤0.005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
N: ≤0.001%
heavy metals: ≤0.0005%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

Quality Level

300