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Home > Products > Inorganic Chemicals > Sodium Carbonate

Sodium Carbonate

Name: Sodium Carbonate
SKU: 0

CAS No.: 497-19-8
Molecular Formula: CH2O3.2Na
Molecular Weight: 105.99

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product description

Sodium Carbonate, also called soda ash, is a white crystalline powder, soluble in water and strongly alkaline. It is widely used in glass manufacturing, detergents, chemical production, metallurgy, papermaking, water treatment, and building materials.

Chemical Properties

Property	Value
Melting Point	851 °C (lit.)
Boiling Point	1600°C
Bulk Density	1100 kg/m³
Density	2.53
Refractive Index	1.535
Storage Condition	15-25°C
Solubility	H₂O: 1 M at 20 °C, clear, colorless
Form	Solid
Color	White
Specific Gravity	2.532
Flame Color	Yellow
Odor	Odorless
pH Value	10.52 (1 mM solution); 10.97 (10 mM solution); 11.26 (100 mM solution)
Acidity Coefficient (pKa)	(1) 6.37, (2) 10.25 (carbonic at 25°C)
Water Solubility	22 g/100 mL (20 °C)
Maximum Wavelength (λ_max)	λ: 260 nm Amax: 0.01 λ: 280 nm Amax: 0.01
Sensitivity	Hygroscopic
Merck	14,8596
BRN	4154566
Dielectric Constant	5.3 (Ambient)
Stability	Stable. Incompatible with powdered or earth metals, aluminum, organosilicon compounds, fluorine, alkali metals, non-metal oxides, concentrated sulfuric acid, phosphorus oxides.
Cosmetic Ingredient Function	Buffering, Bulking
InChI	1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChIKey	CDBYLPFSWZWQCE-UHFFFAOYSA-L
SMILES	O=C(O[Na])O[Na]
CAS Database	497-19-8 (CAS DataBase Reference)
NIST Chemical Substances Information	Sodium carbonate (497-19-8)
EPA Chemical Substances Information	Sodium carbonate (497-19-8)

Safety Information

Property	Value
Hazard symbols	Xn, Xi
Hazard class codes	32-36-51/53-36/37/38-41-37/38
Safety descriptions	36/37-26-22-36-39
WGK Germany	2
RTECS number	XN6476000
F	3
TSCA	TSCA listed
HS code	28362000
Storage class	11 - Combustible solids
Hazard class (category)	Eye irritation, Category 2
Hazardous substances data	497-19-8 (Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 4090 mg/kg

Product Usage

Sodium Carbonate, commonly known as Soda Ash, is a vital basic chemical raw material. In glass manufacturing, it is the most essential ingredient, used to reduce the melting point of silica sand to save energy, with about half of global production dedicated to this sector. In the detergent industry, soda ash acts as a builder to effectively soften hard water and enhance cleaning performance, widely used in the production of laundry powders and soaps. Additionally, it is utilized in metallurgy for the desulfurization and dephosphorization of ores, and in the paper and textile industries for degreasing and bleaching fibers. In environmental protection, it is frequently employed to neutralize acidic wastewater and regulate the pH levels of water systems.

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FAQ

Q1：Does it support customized products?

A1：Yes, it does. Formulations can be adjusted and customized production can be carried out according to customer's industry needs and performance parameters.

Q2：Can samples be provided?

A2：We support free sample delivery and testing services to meet customers' early testing needs.

Q3：Is the product quality stable?

A3：With full-process quality inspection and control, there are minimal batch differences, and the purity and stability strictly meet the standards.

Q4：What is the shipping cycle?

A4：For regular inventory, we offer quick delivery. For customized orders, we arrange production according to demand and ensure timely delivery.

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