If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
1.06329
Wodorowęglan sodu
for analysis EMSURE® ACS,Reag.Ph Eur
Synonim(y):
Sodium bicarbonate
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Informacje o tej pozycji
grade
ACS reagent
Quality Segment
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
Analysis Note
Tożsamość: pozytywny wynik testu
Oznaczenie (kwasymetryczne; w przeliczeniu na wysuszoną substancję): 99,7 - 100,3 %
Oznaczenie (kwasymetryczne): 99,0 - 101,0 %
Substancje nierozpuszczalne: ≤ 0,015 %
Wartość pH (5 %; woda): ≤ 8,6
Chlorek (Cl): ≤ 0,002 %
Fosforan (PO₄): ≤ 0,001 %
Siarczan (SO₄): ≤ 0.015 %
Fosforan i krzemian (jako SiO₂): ≤ 0,005 %
Związki siarki (jako SO₄): ≤ 0,003 %
Azot całkowity (N): ≤ 0,0005 %
Amon (NH₄): ≤ 0.0005 %
Metale ciężkie (jak Pb): ≤ 0,0005 %
As (Arsen): ≤ 0,0002 %
Ca (Wapń): ≤ 0,01 %
Cu (Miedź): ≤ 0,0002 %
Fe (Żelazo): ≤ 0,0005 %
K (Potas): ≤ 0.005 %
Mg (Magnez): ≤ 0,005 %
Pb (Ołów): ≤ 0,0005 %
Substancja redukująca jod (jako I): ≤ 0,0065 %
Strata podczas suszenia (żel krzemionkowy): ≤ 0,20 %
Odpowiada ACS, Reag. Ph Eur
Legal Information
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Ta pozycja | |||
|---|---|---|---|
| form powder | form powder | form solid | form powder or crystals |
| assay 99.0-101.0% (acidimetric), 99.7-100.3% dry basis (acidimetric) | assay - | assay 99.0-101.0% | assay ≥95% |
| solubility 96 g/L | solubility 96 g/L | solubility water: soluble 50 g/L | solubility - |
| Quality Level 300 | Quality Level 300 | Quality Level 200 | Quality Level - |
| grade ACS reagent | grade - | grade - | grade - |
| impurities ≤0.0065% Iodine reducing matter (as I), ≤0.015% Insoluble matter | impurities - | impurities - | impurities 2-5% Na2CO3 |
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Klasa składowania
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
Certyfikaty analizy (CoA)
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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