Sodium carbonate (also known as washing soda or soda ash), Na2CO3 is a sodium salt of carbonic acid. It most commonly occurs as a crystalline heptahydrate, which readily effloresces to form a greyish-white powder, the monohydrate. Sodium carbonate is domestically well known for its everyday use as a water softener. It can be extracted from the ashes of many plants. It is synthetically produced in large quantities from table salt and limestone in a process known as the Solvay process.
Applications :
Glass manufacture, chemicals, pulp and paper manufacture, sodium compounds, soaps and detergents, water treatment, aluminium production, textile processing, cleaning preparations, petroleum refining, sealing ponds from leakage (sodium ions bind to clay particles, which swell to seal leaks), catalyst in coal liquefaction.
Soda Ash is available in two forms :
1. Soda ash light
2. Soda ash dense
Soda ash dense is used in municipal applications because of Superior handling
characteristics. It has a little dust, good flow, and will not arch in the bin or flood the
feeder. It is relatively hard to dissolve and ample dissolver capacity must be provided.
Normal dosage used for 0.5 lb of soda ash dense per gallon water or a 6% solution
retained for 20 min in the dissolver. The dust and solution are irritating to the eyes, nose,
lungs, and skin, and therefore general precautios should be observed and affected areas
should be washed promptly with water.
Source : Wikipedia
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PT. SARANA MITRA INTI GLOBAL
michael@sanminglobe.com
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