1.06329
Sodium hydrogen carbonate
for analysis EMSURE® ACS,Reag.Ph Eur
Recommended Products
grade
ACS reagent
Quality Level
Agency
reag. Ph. Eur.
product line
EMSURE®
Assay
99.0-101.0% (acidimetric)
99.7-100.3% dry basis (acidimetric)
form
powder
potency
4220 mg/kg LD50, oral (Rat)
impurities
≤0.0065% Iodine reducing matter (as I)
≤0.015% Insoluble matter
loss
≤0.2% loss on drying, Silica gel
pH
8.6 (20 °C, 50 g/L in H2O)
pKa (25 °C)
(1) 6.37, (2) 10.25 (carbonic acid)
mp
270 °C (decomposition)
solubility
96 g/L
density
2.22 g/cm3 at 20 °C
2.16 g/mL at 25 °C (lit.)
bulk density
1000 kg/m3
anion traces
chloride (Cl-): ≤0.002%
phosphate (PO43-): ≤0.001%
phosphate, silicate (as SiO2): ≤0.005%
sulfate (SO42-): ≤0.015%
sulfur compounds (as SO42-): ≤0.003%
cation traces
As: ≤0.0002%
Ca: ≤0.01%
Cu: ≤0.0002%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.005%
N: ≤0.0005%
NH4+: ≤0.0005%
Pb: ≤0.0005%
heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
[Na+].OC([O-])=O
InChI
1S/CH2O3.Na/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
InChI key
UIIMBOGNXHQVGW-UHFFFAOYSA-M
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Analysis Note
Identity: passes test
Assay (acidimetric; calculated on dried substance): 99.7 - 100.3 %
Assay (acidimetric): 99.0 - 101.0 %
Insoluble matter: ≤ 0.015 %
pH-value (5 %; water): ≤ 8.6
Chloride (Cl): ≤ 0.002 %
Phosphate (PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.015 %
Phosphate and Silicate (as SiO₂): ≤ 0.005 %
Sulfur compounds (as SO₄): ≤ 0.003 %
Total nitrogen (N): ≤ 0.0005 %
Ammonium (NH₄): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.0002 %
Ca (Calcium): ≤ 0.01 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.005 %
Mg (Magnesium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Iodine reducing matter (as I): ≤ 0.0065 %
Loss on drying (Silica gel): ≤ 0.20 %
Corresponds to ACS, Reag. Ph Eur
Legal Information
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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