Sodium carbonate

SIGALD/791768 - anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99.5%

Synonym: Calcined soda; Carbonic acid disodium salt; Soda ash

CAS Number: 497-19-8
Empirical Formula (Hill Notation): CNa₂O₃
Molecular Weight: 105.99
EC Number: 207-838-8
MDL Number: MFCD00003494
Linear Formula: Na₂CO₃
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-791768-500G	500 g	$102.00 1/EA	Add To Favorites
45-791768-1KG	1 kg	$145.00 1/EA	Add To Favorites
45-791768-6X1KG	1 kg	$716.00 1/EA	Add To Favorites
45-791768-2.5KG	2.5 kg	$253.00 1/EA	Add To Favorites
45-791768-12KG	12 kg	$565.00 1/EA	Add To Favorites

Redi-Dri free-flowing salts

Free-flowing salts

Loss on Drying Graph

The Redi-Dri™ packaging system eliminates the common issue of clumping that is noted with many hygroscopic salts and buffers and provides free-flowing, ready-to- use material at all times.

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 791768-500G

Properties
Descriptions
Safety Info.
Basic Data

agency	suitable for EPA 300
anion traces	chloride (Cl^-): ≤0.001%
	phosphate (PO₄^3-): ≤0.001%
	sulfur compounds (as SO₄^2-): ≤0.003%
application(s)	PFAS testing
assay	≥99.5%
cation traces	Ca: ≤0.03%
	Fe: ≤5 ppm
	heavy metals: ≤5 ppm (by ICP-OES)
	K: ≤0.005%
	Mg: ≤0.005%
form	powder
grade	ACS reagent
	anhydrous
impurities	≤0.005% silica
	≤0.01% insolubles
InChI	1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI key	CDBYLPFSWZWCQE-UHFFFAOYSA-L
loss	≤1.0% loss on heating
mp	851 °C (lit.)
pH	12 (25 °C, 106 g/L)
product line	Redi-Dri^™
quality	free-flowing
Quality Level	100
SMILES string	O=C(O[Na])O[Na]

Application:	Denitrification mechanism of NaOH in the presence of carbon.: Explores the interaction between sodium carbonate and other chemicals in environmental applications, particularly focusing on denitrification processes important for water treatment (Li et al., 2005 ). Evaluation of capillary electrophoresis for determining the concentration of dissolved silica in geothermal brines.: Discusses the role of sodium carbonate in modifying sample pH for capillary electrophoresis, essential for accurate measurement of silica in complex geothermal fluids (Santoyo et al., 2005 ).
Biochem/physiol Actions:	Buffer component, may be used for the removal of peripheral membrane proteins.
Legal Information:	Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Packaging:	1 kg in poly bottle
Packaging:	2.5, 12 kg in poly drum
Packaging:	500 g in poly bottle

Symbol	GHS07
Signal word	Warning
Hazard statements	H319
Precautionary statements	P264 - P280 - P305 + P351 + P338 - P337 + P313
Hazard Codes	Xi
Risk Statements	36
Safety Statements	22-26
RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥99.5%
mp	851 °C (lit.)
UNSPSC	12352302

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