1.02405
Sodium carbonate
volumetric standard, secondary reference material for acidimetry, traceable to NIST SRM Certipur®
Synonym(s):
anhydrous soda, Calcined soda, Carbonic acid disodium salt, Soda ash
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About This Item
Linear Formula:
Na2CO3
CAS Number:
Molecular Weight:
105.99
UNSPSC Code:
41116107
NACRES:
NA.24
EC Index Number:
207-838-8
MDL number:
Beilstein/REAXYS Number:
4154566
Quality Segment
agency
ISO 17025, reag. Ph. Eur., reag. USP
product line
Certipur®
form
solid
potency
4090 mg/kg LD50, oral (Rat)
technique(s)
titration: suitable
pH
11.16 (25 °C, 4 g/L in H2O)
mp
851 °C (lit.)
solubility
212.5 g/L
density
2.53 g/cm3 at 20 °C
bulk density
1100 kg/m3
application(s)
cosmetics
food and beverages
storage temp.
15-25°C
SMILES string
O=C(O[Na])O[Na]
InChI
1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI key
CDBYLPFSWZWCQE-UHFFFAOYSA-L
General description
Sodium carbonate is a volumetric standard manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Application
It is used as a certified reference material (CRM) for the standardization of volumetric solutions in acidimetric titrations, according to USP and Ph. Eur.
Biochem/physiol Actions
Buffer component, may be used for the removal of peripheral membrane proteins.
Features and Benefits
- Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- Certified reference material according to ISO 17034
- High-purity material traceable to NIST SRMs
- Measured in a DIN EN ISO/IEC 17025 accredited laboratory
- In accordance with the chapter reagents of USP and Ph. Eur
- High-quality offering accurate titer determinations
Packaging
SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
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Signal Word
Warning
Hazard Codes
Precautionary Statements
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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