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Sodium Carbonate

Sodium Carbonate
CAS No.: 497-19-8
Molecular Formula: CH2O3.2Na
Molecular Weight: 105.99
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Product Introduction

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

PropertyValue
Melting Point851 °C (lit.)
Boiling Point1600°C
Bulk Density1100 kg/m³
Density2.53
Refractive Index1.535
Storage Condition15-25°C
SolubilityH₂O: 1 M at 20 °C, clear, colorless
FormSolid
ColorWhite
Specific Gravity2.532
Flame ColorYellow
OdorOdorless
pH Value10.52 (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 Solubility22 g/100 mL (20 °C)
Maximum Wavelength (λ_max)λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01
SensitivityHygroscopic
Merck14,8596
BRN4154566
Dielectric Constant5.3 (Ambient)
StabilityStable. Incompatible with powdered or earth metals, aluminum, organosilicon compounds, fluorine, alkali metals, non-metal oxides, concentrated sulfuric acid, phosphorus oxides.
Cosmetic Ingredient FunctionBuffering, Bulking
InChI1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChIKeyCDBYLPFSWZWQCE-UHFFFAOYSA-L
SMILESO=C(O[Na])O[Na]
CAS Database497-19-8 (CAS DataBase Reference)
NIST Chemical Substances InformationSodium carbonate (497-19-8)
EPA Chemical Substances InformationSodium carbonate (497-19-8)


SAFETY INFORMATION

PropertyValue
Hazard symbolsXn, Xi
Hazard class codes32-36-51/53-36/37/38-41-37/38
Safety descriptions36/37-26-22-36-39
WGK Germany2
RTECS numberXN6476000
F3
TSCATSCA listed
HS code28362000
Storage class11 - Combustible solids
Hazard class (category)Eye irritation, Category 2
Hazardous substances data497-19-8 (Hazardous Substances Data)
ToxicityLD50 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

Q: Are you a factory or a trading company?

A: We are a company integrating manufacturing and trading.

Q: Can you provide samples for testing before mass production?

A: Of course. We can send you samples free of charge, and we also include a COA. However, you will be responsible for the shipping fee.

Q: How can I get an accurate quote?

A: Please provide the exact product specifications, particle size, color, and intended use, and we will provide you with an accurate quote.

Q: Can you provide a COA?

A: Of course, but only for standard products. If you require an accurate COA, we will produce and test samples before providing you with an accurate COA.

Q: Do you accept ODM or OEM services?

A: Yes, we offer customized services for ingredients, packaging, and labeling. We have strong design capabilities. Please contact us to design your own brand.

Q: Can I visit your factory before placing a large order?

A: Of course. We welcome you at any time.

Q: What is the loading port?

A: Usually Qingdao or Tianjin.

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