Sodium carbonate CAS#497-19-8

CAS Number: 497-19-8
Chemical Formula: CH2O3.2Na
Synonyms:

ASH
Sodium carbonate solution
Sodium carbonate-12C, 13C-depleted

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Sodium carbonate CAS#497-19-8

Sodium carbonate( 497-19-8), Na2CO3, is a sodium salt of carbonic acid. The pure product appears as a while, odorless powder with a strong alkaline taste. It has high hygroscopicity. It can be easily dissolved in water to form an aqueous solution with moderate alkalinity.
Sodium carbonate has wide applications in various kinds of fields around the world. One of most important application of sodium carbonate is for the manufacturing of glass. Based on statistics information, about half of the total production of sodium carbonate is used for the manufacturing of glass. During the production of glass, sodium carbonate acts as a flux in the melting of silica. In addition, as a strong chemical base, it is used in the manufacturing of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner. In addition, it can also be used for tissue digestion, dissolving amphoteric metals and compounds, food preparation as well as acting as a cleaning agent.
There are generally two ways for the production of sodium carbonate. One is through the reactions between sodium chloride and calcium carbonate (via the ammonia soda (Solvay) process). The other is from sodium carbonate and hydrogencarbonate ores (trona and nahcolite).

Sodium carbonate Chemical Properties

Melting point	851 °C (lit.)
Boiling point	1600°C
bulk density	1100kg/m3
density	2.53
refractive index	1.535
storage temp.	15-25°C
solubility	H2O: 1 M at 20 °C, clear, colorless
form	Solid
color	White
Specific Gravity	2.532
Flame Color	Yellow
Odor	at 100.00?%. odorless
PH	10.52(1 mM solution);10.97(10 mM solution);11.26(100 mM solution);
pka	(1) 6.37, (2) 10.25 (carbonic (at 25℃)
Water Solubility	22 g/100 mL (20 ºC)
λmax	λ: 260 nm Amax: 0.01 λ: 280 nm Amax: 0.01
Sensitive	Hygroscopic
Merck	14,8596
BRN	4154566
Dielectric constant	5.3（Ambient）
Stability:	Stable. Incompatible with powdered alkaline earth metals, aluminium, organic nitro compounds, fluorine, alkali metals, nonmetallic oxides, concentrated sulfuric acid, oxides of phosphorus.
Cosmetics Ingredients Functions	BUFFERING BULKING
InChI	1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChIKey	CDBYLPFSWZWCQE-UHFFFAOYSA-L
SMILES	O=C(O[Na])O[Na]
CAS DataBase Reference	497-19-8(CAS DataBase Reference)
NIST Chemistry Reference	Sodium carbonate(497-19-8)
EPA Substance Registry System	Sodium carbonate (497-19-8)

Safety Information

Hazard Codes	Xn,Xi
Risk Statements	32-36-51/53-36/37/38-41-37/38
Safety Statements	36/37-26-22-36-39
WGK Germany	2
RTECS	XN6476000
F	3
TSCA	TSCA listed
HS Code	28362000
Storage Class	11 - Combustible Solids
Hazard Classifications	Eye Irrit. 2
Hazardous Substances Data	497-19-8(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 4090 mg/kg

Product Application Of Sodium carbonate CAS#497-19-8

Soda ash is used in glass making, in production of sodium chemicals (such as sodium chromates, phosphates, and silicates), in the wood pulp industry, in production of soaps and detergents, in oil refining, in water softening, and in refining of nonferrous metals. In its hydrous crystallized form (Na2C03.10H2O), it is known as sal soda,washing soda,or soda crystals, not to be confused with baking soda,which is sodium hydrogen carbonate or sodium bicarbonate (NaHC03). Its monohydrate form(Na2C03·H20) is the standard compound for scouring solutions.
When in solution, sodium carbonate creates less alkalinity than the hydroxides. A 0.1% solution creates a pH of 11;a fully saturated solution is 35%, which has a pH of 12.5.
The safety requirements for sodium carbonate, because of its lower alkalinity, can be considered less demanding than those for the related bicarbonates.

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