SODIUM CARBONATE (SODA ASH)

SODA ASH
PRODUCT IDENTIFICATION
CAS NO.	497-19-8
EINECS NO.	207-838-8
FORMULA	Na₂CO₃
MOL WT.	105.99
H.S. CODE	2836.20.0000
TOXICITY	Oral rat LD50: 4090 mg/kg
SYNONYMS	Carbonic acid, disodium salt; disodium carbonate;
Sodium carbonate; Carbonic acid disodium salt; Crystol carbonate; Bisodium carbonate; Carbonic acid sodium salt; Disodium carbonate; Na-X; Soda; Soda ash; Sodium carbonate (2:1); Soda Ash; Washing soda; Trona; Other RN: 1332-57-6
SMILES	C(=O)([O-])[O-].[Na+].[Na+]
CLASSIFICATION
EXTRA NOTES	EPA Pesticide Chemical Code 073506
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	White powder or granules
MELTING POINT	851 C (Decomposes)
BOILING POINT
SPECIFIC GRAVITY	2.53
SOLUBILITY IN WATER	106 g/l at 20 C
pH	11.6 (Aqueous solution)
VAPOR DENSITY
AUTOIGNITION
NFPA RATINGS	Health:2 Flammability: 0 Reactivity:0
REFRACTIVE INDEX
FLASH POINT	Not considered to be a fire hazard
STABILITY	Stable under ordinary conditions. Hygroscopic
EXTERNAL LINKS & GENERAL DESCRIPTION
Wikipedia Linking Material Safety Data Sheet Google Scholar Search Drug Information Portal (U.S. National Library of Medicine) - SODIUM CARBONATE PubChem Compound Summary - SODIUM CARBONATE Methods of Manufacturing -Solvay-Ammonia Process (dominant synthetic production process): Uses the raw materials sodium chloride and calcium carbonate (limestone) to produce sodium carbonate and calcium chloride. The process is based on the manipulation of saline phase chemistry. Ammonia is used in the process and recovered. -Natural Processes: Mining natural deposits, especially the Green River trona beds. Trona purification Processes: Two processes, named the monohydrate and sesquicarbonate according to the crystalline intermediates, are used to produce refined soda ash from trona. Both processes involve the same unit operations only in different sequences Local: Sodium Carbonate is a white, crystalline compound soluble in water (absorbing moisture from the air) but insoluble in alcohol. It forms a strongly alkaline water solution. Soda ash is the industrial name of anhydrous sodium carbonate. Sodium carbonate decahydrate, a colorless, transparent crystalline compound, is commercially called sal soda or washing soda. Soda Ash is produced synthetically using the Ammonia Soda process (Solvay process) treating sodium chloride with ammonia and carbon dioxide. Trona, a naturally occurring mineral, is used also as a source of sodium carbonate. It is is an essential ingredient in many industrial and manufacturing processes. It has a wide range of industrial uses, being crucial in the manufacture of flat and container glass and a key ingredient in the production of detergents. It is also used in water purification, polymer production, tanning, aerospace alloys, paper manufacturing process, effluent neutralisation, metal refining, sugar extraction and cement manufacture. APPLICATIONS: glass, effluent neutralisation, metal refining, detergents, chemical manufacture, water purification, polymer production, tanning, sugar, extraction, cement manufacturing
SALES SPECIFICATION
DENSE
APPEARANCE	white odorless, granular
TOTAL BASE CONTENT	99.2% min (as Na₂CO₃ on Dry Base)
SODIUM OXIDE	58.1% min (as Na₂O on Dry Base)
SODIUM CHLORIDE	0.05% max (as NaCl on Dry Base)
SODIUM SULFATE	0.15% max (as Na₂SO₄ on Dry Base)
INSOLUBLES IN WATER	0.1% max
BULK DENSITY	800 - 1100kg/m³
SIEVE ANALYSIS	< 0.065mm :2.0% max < 0.125 mm: 5.0% max < 0.25 mm: 60.0% max < 0.5 mm: 60.0% min < 1.0 mm: 95.0% min
LIGHT
APPEARANCE	white odorless, granular
TOTAL BASE CONTENT	99.2% min (as Na₂CO₃ on Dry Base)
SODIUM OXIDE	58.1% min (as Na₂O on Dry Base)
SODIUM CHLORIDE	0.05% max (as NaCl on Dry Base)
SODIUM SULFATE	0.15% max (as Na₂SO₄ on Dry Base)
INSOLUBLES IN WATER	0.1% max
BULK DENSITY	400-700 kg/m³
SIEVE ANALYSIS	0.125 - 0.250 mm : 20 - 35% 0.065 - 0.125 mm : 20 - 30% < 0.065 mm : 20 - 35%
TRANSPORTATION
PACKING	Light : 25kgs, 500kgs, Dense : 50kgs, 1mt in Bag
HAZARD CLASS	Not regulated
UN NO.
SAFETY INFORMATION
HAZARD OVERVIEW	OSHA Hazards: Irritant
GHS
SIGNAL WORD	Warning
PICTOGRAMS
HAZARD STATEMENTS	H303 May be harmful if swallowed. H316 Causes mild skin irritation. H319 Causes serious eye irritation.
PRECAUTIONARY STATEMENTS	P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
EC DIRECTIVES
HAZARD CODES	Xi Irritant
RISK PHRASES	36
SAFETY PHRASES	22 Harmful if swallowed 26 Very Toxic by inhalation
PRICE INFORMATION