Handling and Storage of Hydrated Lime

Hydrated lime is generally supplied to small users in paper sacks or intermediate bulk containers (IBCs or big bags ) of 0.5 or 11 capacity. Where larger amounts are used, the product is delivered in air pressure discharge vehicles (APDVs). 

The flow characteristics of hydrated lime can vary widely, with the angle of repose ranging from almost 0 ° when it is aerated, to 90 ° when it is compacted and/or damp. Its handling properties, however, do not generally cause problems, providing its moisture content is less than 2 % and normal powder handling techniques are used. 

Hydrated lime absorbs carbon dioxide from the atmosphere, forming calcium carbonate and water. It should, therefore, be stored in dry, draught-free conditions. 

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