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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
223484
Sodium carbonate
ACS reagent (primary standard), anhydrous, 99.95-100.05% dry basis
Synonym(s):
Calcined soda, Carbonic acid disodium salt, Soda ash
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PLN 360.00
About This Item
anhydrous
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Product Name
Sodium carbonate, ACS reagent (primary standard), anhydrous, 99.95-100.05% dry basis
InChI key
CDBYLPFSWZWCQE-UHFFFAOYSA-L
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]
grade
ACS reagent (primary standard)
anhydrous
assay
99.95-100.05% dry basis
form
powder
impurities
≤0.005% silica
≤0.01% insolubles
loss
≤1.0% loss on heating
pH
12 (25 °C, 106 g/L)
mp
851 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfur compounds (as SO42-): ≤0.003%
cation traces
Ca: ≤0.02%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.004%
heavy metals: ≤5 ppm (by ICP-OES)
Quality Level
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Related Categories
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This Item | 71345 | S2127 | 1.02405 |
|---|---|---|---|
| form powder | form powder or crystals | form powder (granular) | form solid |
| assay 99.95-100.05% dry basis | assay ≥99.5% (calc. on dry substance, T) | assay ≥99.5% | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 300 |
| grade ACS reagent (primary standard), anhydrous | grade anhydrous | grade - | grade - |
| anion traces chloride (Cl-): ≤0.001%, sulfur compounds (as SO42-): ≤0.003%, phosphate (PO43-): ≤0.001% | anion traces chloride (Cl-): ≤50 mg/kg, phosphate, silicate (as SiO2): ≤50 mg/kg | anion traces - | anion traces - |
| pH 12 (25 °C, 106 g/L) | pH ~12.0 (25 °C, 1 M in H2O) | pH 12 (25 °C, 106 g/L) | pH 11.16 (25 °C, 4 g/L in H2O) |
Application
It may also be used in procedures for the synthesis of the following:
Biochem/physiol Actions
General description
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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