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497-19-8

Supplier Related Products Identification Chemical Properties Safety Data Raw materials And Preparation Products Material Safety Data Sheet(MSDS) Questions And Answer Spectrum Detail Well-known Reagent Company Product Information

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Identification

Name
Sodium carbonate
CAS
497-19-8
Synonyms
ANTICHLOR
BENEDICT'S, QUALITATIVE
BENEDICT'S QUALITATIVE POWDER
BENEDICT'S QUAN SOL
BENEDICTS REAGENT
BENEDICT'S REAGENT
BENEDICT'S REAGENT, QUALITATIVE
BENEDICT'S REAGENT, QUANTITATIVE
BENEDICT'S SOLUTION
BENEDICT'S SOLUTION, QUALITATIVE
BENEDICT'S SOLUTION, QUANTITATIVE
BETZ 0235
DECHLORINATING SOLUTION
DETERGENT, FL-70
EXTRAN AP 14
EXTRAN(R) AP 14
EXTRAN(R) AP14 DETERGENT
EXTRAN(R) AP14, MILDLY ALKALINE LIQUID DETERGENT
HYPO
'HYPO'
EINECS(EC#)
231-867-5
Molecular Formula
CNa2O3
MDL Number
MFCD00003499
Molecular Weight
105.99
MOL File
497-19-8.mol

Chemical Properties

Appearance
white odourless powder
mp 
851 °C(lit.)

bp 
1600°C
density 
2.53
refractive index 
1.535
storage temp. 
2-8°C

solubility 
H2O: 1 M at 20 °C, clear, colorless

Stability:
Stable. Incompatible with powdered alkaline earth metals, aluminium, organic nitro compounds, fluorine, alkali metals, nonmetallic oxides, concentrated sulfuric acid, oxides of phosphorus.
Water Solubility 
22 g/100 mL (20 ºC)
Sensitive 
Hygroscopic
Merck 
14,8596
BRN 
4154566
Uses
Sodium carbonate is also known as washing soda or carbonate of soda, sodium carbonate is a white crystal or powder made by converting salt into sodium sulfate, which was followed by roasting with limestone and coal. It is soluble in water and glycerin but not alcohol. Sodium carbonate was used as a pH modifier in toning baths and as the primary alkali in developers used for gelatin emulsions.
Uses
Sodium Carbonate is an alkali that exists as crystals or crystalline powder and is readily soluble in water. it has numerous functions: an antioxidant, a curing and pickling agent, a flavoring agent, a processing aid, a sequestrant, and an agent for ph control. it is used in instant soups to neutralize acidity. it is used in alginate water des- sert gels to sequester the calcium, allowing the alginate to solubilize. it is also used in puddings, sauces, and baked goods.
CAS DataBase Reference
497-19-8(CAS DataBase Reference)
NIST Chemistry Reference
Sodium carbonate(497-19-8)
EPA Substance Registry System
497-19-8(EPA Substance)

Safety Data

Hazard Codes 
Xn,Xi
Risk Statements 
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 Statements 
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 .
RIDADR 
UN 3082 9/PG 3

WGK Germany 
2

RTECS 
XN6476000


3
HS Code 
28362000
Safety Profile
Poison by intraperitoneal route. Moderately toxic by inhalation and subcutaneous routes. Mlldly toxic by ingestion. Experimental reproductive effects. A skin and eye irritant. It migrates to food from packagmg materials. Can react violently with Al, P2O5, H2SO4, F2, Li, 2,4,6-trinitrotoluene. When heated to decomposition it emits toxic fumes of Na2O
Hazardous Substances Data
497-19-8(Hazardous Substances Data)

Raw materials And Preparation Products

Raw materials
Sodium chloride-->Ammonia-->Sodium bicarbonate-->Ammonium chloride -->CARBON DIOXIDE-->Calcium carbonate-->Sodium sulfide-->4-Chlorobenzaldehyde-->Hydroquinone-->CALCIUM CARBONATE-->SODIUM SULPHIDE HYDRATE-->METALLURGICAL COKE-->Boron tribromide--> HEAVY CUT RESIDUE OIL-->SODIUM SULFATE DECAHYDRATE-->Sodium pyruvate-->SODIUM CARBONATE, MONOHYDRATE-->SODA ASH LIGHT 99.2% MIN.-->Carbonization tower-->SODIUM SESQUICARBONATE DIHYDRATE-->SODA ASH DANSE-->Resistance-readucing agent,long-acting
Preparation Products
SODIUM HYPOPHOSPHITE MONOHYDRATE-->REACTIVE BLACK 5-->Reactive Black KN-BN-->BENZAMIDOXIME HYDROCHLORIDE-->N'-HYDROXY-2-THIOPHENECARBOXIMIDAMIDE-->Indirubin-->2,4-DIAMINO-1,3,5-TRIAZINE-->Isopropylparaben-->water-proofing agnet AC-->calcium stearyl lactate-->benzene series organic effluent gas purifying catalyst-->3-HYDROXY-1-PHENYL-6-PYRIDAZONE-->Sulfamethazine-->N'-HYDROXYPYRIDINE-2-CARBOXIMIDAMIDE-->Potassium hexafluoraluminate-->Fast Malachite Blue lake-->POLYANIONIC CELLULOSE-->Cellulose diacetate plastifier-->N-(Ethoxycarbonyl)-4-ethoxycarbonyl-1-methylpyrazole-5-sulfonamide-->GLAUBERITE-->Streptodornase/streptokinase-->2-Chloro-4-methylpyrimidine-->2-ISOPROPOXYETHANOL-->6-Methyl-2-(methylthio)pyrimidin-4-ol-->2-Nitrobenzyl alcohol-->1,3-Dibromo-2-propanol-->tert-Butylisocyanate-->3-PYRIDYLAMIDOXIME-->N'-HYDROXYPYRIDINE-4-CARBOXIMIDAMIDE-->BETA-BUTYROLACTONE-->sodium aluminium phosphate,basic,for food-->Methylthiouracil-->Silver carbonate-->Boric fertilizer-->sodium aluminium acid phosphate for food-->1-Bromo-2-chloroethane-->alpha-Methylcinnamaldehyde-->Sodium tartrate-->Acetic acid octyl ester-->Sodium dihydrogen phosphate dihydrate

Material Safety Data Sheet(MSDS)

Questions And Answer

Description
Sodium carbonate (molecular formula: Na2CO3), is the water soluble sodium salt of carbonate. 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).
Physical Properties
The anhydrous salt is an odorless white powder; alkaline taste; hygroscopic; density 2.54 g/cm3; melts at 851°C; begins to loose CO2 well before melting; soluble in water; insoluble in alcohol; dissolves in acids liberating CO2.
The monohydrate consists of colorless and odorless small crystals or cystalline powder; orthorhombic structure; refractive index 1.420; hardness 1.3 Mohs; density 2.25 g/cm3; loses water at 100°C becoming anhydrous; very soluble in water; insoluble in ethanol.
The decahydrate consists of transparent crystals; effloresces on exposure to air; density 1.46 g/cm3; decomposes at 34°C; very soluble in water; insoluble in ethanol.
Aqueous solutions are strongly alkaline.
sodium carbonate powder
sodium carbonate powder
Uses
Sodium carbonate is a kind of important raw material for chemical industry with wide application. It is the important raw material for making glass, soaps, detergents, textiles, leather, spices, dyes, medicines, etc.
It can be used for analysis reagents and also used for the pharmaceutical industry and photoengraving.
It is widely used in glass, chemicals, paper making, metallurgy, pharmaceutical, and textile as well as food industries.
It is TV dedicated reagent.
It can be used for the food industry as the neutralizing agent, leavening agents such as for the manufacture of amino acids, soy sauce and pasta such as bread, bread and so on. It can also be prepared to dubbed alkaline and add into pasta to increase the flexibility and ductility.
As the detergent, it can be used for wool rinse. It can also be applied to bath salts and pharmaceutical use and also be used as the alkali agent of tanning.
Sodium carbonate is most used in industry with a small part using by the civilian. In the soda ash of industry purpose, it is mainly applied to light industry, building materials and chemical industry, accounting for about 2/3: followed by metallurgy, textiles, petroleum, defense, and pharmaceutical. The glass industry is the largest soda consumer sector with each ton of glass consuming 0.2 ton of soda ash. In the chemical industry, it can be used for manufacturing of sodium silicate, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, and trisodium phosphate. In the metallurgical industry, it is mainly used for fluxing agent, mineral flotation agent, and desulfurization agent for steel and antimony. It can also be used as water softener in printing and dyeing industry. In tanning industry, it can be used for the degreasing of raw hides, neutralizing chrome tanned leather and improving the alkalinity of the chrome liquid. It is also used in the production of synthetic detergent additive sodium tripolyphosphate and other sodium salt.
It can be used as a buffer, neutralizing agent and dough conditioner. It can be used in cakes and pastas. Make appropriate use it according to actual requirement of production.
It is mainly applied to float glass, funnels, optical glass. It can also be used in other sectors of chemical industry and metallurgy industry. It can reduce the flying the alkali dust through application of heavy soda ash, and thus reducing the material consumption, improving the working conditions as well as improving product quality while reducing its erosion on the refractory material to extend the life of the furnace.
It is a kind of basic chemical raw material which is widely used in medicine, paper making, metallurgy, glass, textiles, dyes and other industries and can be used as a leavening agent in food industry.
It can be used as analytical reagents, dehydrating agent, and battery additives.
Toxicity
ADI (acceptable daily intake) make no restrictions (FAO/WHO in 1985). LD50 (median lethal dose) is about 6 g/kg (mice-oral).
Soda ash dust has irritation effects on the skin, respiratory and eyes. Long-term exposure to soda solution may cause eczema and dermatitis. Its concentrated solutions can cause burns, necrosis, and even corneal opacity. The maximal allowable concentration of soda ash dust in the air is 2 mg/m3. The operators should wear overalls, door cover, gloves, boots and other protective clothing to protect the respiratory system and skin.
Production method
Sodium carbonate at present is mostly mined from its natural deposits. It also is manufactured syntheticallly by Solvay (or ammonia-soda) process. The natural production of sodium carbonate currently has supassed its synthetic production.
The Solvay process involves a series of partial reactions. The first step is calcination of calcium carbonate to form lime and CO2. Lime is converted to calcium hydroxide. The most crucial step of the process involves reacting brine solution with carbon dioxide and ammonia to produce sodium bicarbonate and ammonium chloride. Sodium bicarbonate converts to sodium carbonate. The calcium hydroxide and ammonium chloride react to form calcium chloride as the by-product. The partial reactions are shown below:
CaCO3 → CaO + CO2
CaO + H2O → Ca(OH)2
2NaCl + 2CO2 + 2NH3 + 2H2O → 2NaHCO3 + 2NH4Cl
2NaHCO3 → Na2CO3 + H2O + CO2
Ca(OH)2 + 2NH4Cl → CaCl2 + 2NH3 + 2H2O
The overall reaction:
CaCO3 + 2NaCl → Na2CO3 + CaCl2
Sodium carbonate was made historically by the Leblanc process. The first commercial production was carried out by the Leblanc process. In this process, sodium chloride was treated with sulfuric acid to produce sodium sulfate and hydrochloric acid. Heating the sodium sulfate with coal and limestone produced a “black ash” that contained sodium carbonate, calcium sulfide, unreacted coal, and calcium carbonate. Sodium carbonate was separated from the black ash by leaching with water. The overall reaction is as follows:
Na2SO4 + 2C + CaCO3 → Na2CO3 + CaS + 2CO2
References
https://en.wikipedia.org/wiki/Sodium_hydroxide#Uses
http://www.essentialchemicalindustry.org/chemicals/sodium-carbonate.html

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