Sodium carbonate(CAS#497-19-8)

Chemical Property:

Molecular Formula	CH2O3.2Na
Molar Mass	105.99
Density	2.53
Melting Point	851 °C (lit.)
Boling Point	1600°C
Water Solubility	22 g/100 mL (20 ºC)
Solubility	H2O: 1M at20°C, clear, colorless
Appearance	White powder or granule
Specific Gravity	2.532
Color	White
Maximum wavelength(λmax)	['λ: 260 nm Amax: 0.01', , 'λ: 280 nm Amax: 0.01']
Merck	14,8596
BRN	4154566
pKa	(1) 6.37, (2) 10.25 (carbonic (at 25℃)
PH	10.52(1 mM solution);10.97(10 mM solution);11.26(100 mM solution);
Storage Condition	15-25°C
Stability	Stable. Incompatible with powdered alkaline earth metals, aluminium, organic nitro compounds, fluorine, alkali metals, nonmetallic oxides, concentrated sulfuric acid, oxides of phosphorus.
Sensitive	Hygroscopic
Refractive Index	1.535
MDL	MFCD00003494
Physical and Chemical Properties	properties a pure product of anhydrous sodium carbonate is a white powder or fine particles. melting point 851 ℃ relative density 2.532 soluble in water, the aqueous solution is strongly alkaline. At 35.4 deg C the solubility of the maximum, per 7.0g water can dissolve 49.7g sodium carbonate (0 deg C for 100g, 45.5 deg C for g). Slightly soluble in anhydrous ethanol, insoluble in propanol.
Use	Basic chemical raw materials, widely used in medicine, paper, metallurgy, glass, textile, dye and other industries, used as food industry fermentation agent

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Product Detail

Product Tags

Risk Codes	R32 - Contact with acids liberates very toxic gas R36 - Irritating to the eyes R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/37/38 - Irritating to eyes, respiratory system and skin. R41 - Risk of serious damage to eyes R37/38 - Irritating to respiratory system and skin.
Safety Description	S36/37 - Wear suitable protective clothing and gloves. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S22 - Do not breathe dust. S36 - Wear suitable protective clothing. S39 - Wear eye / face protection.
WGK Germany	2
RTECS	XN6476000
FLUKA BRAND F CODES	3
TSCA	Yes
HS Code	28362000
Toxicity	LD50 orally in Rabbit: 4090 mg/kg

Introduction

No smell. It has an alkali taste. It's hygroscopic. The exposed air gradually absorbs 1mol/L water (about 15%). Carbon dioxide is lost at 400 ℃. Decompose and effervescent in case of acid. Soluble in water (3.5 parts at room temperature and 2.2 parts at 35 ℃) and glycerol, insoluble in alcohol. The aqueous solution is strongly alkaline, pH11.6. Median lethal dose (30 days) (mice, abdominal cavity) 116.6 mg/kg. It's irritating.

Application
Sodium carbonate (CAS 497-19-8), commonly known as soda ash, is an inorganic salt widely used as a pH regulator, water softener, and fluxing agent. In industrial applications, it is essential for glass manufacturing, detergents, and water treatment. As a food additive (E500i), it serves as an acidity regulator and anti-caking agent in baked goods and noodles. In the chemical industry, it is a precursor for sodium silicates, phosphates, and bicarbonates. It is also used in metallurgy as a flux for smelting and in textile processing for pH control. Xinchem offers custom synthesis, custom chemical synthesis, and contract manufacturing of high-purity sodium carbonate with flexible scaling from R&D to commercial tons. Contact us today for a competitive quote and reliable global supply.

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