Hydrated lime

Move source of dust or move person to fresh air. Obtain medical attention immediately.

Carefully and gently brush the contaminated body surfaces in order to remove all traces of product. Wash affected area immediately with plenty of water. Remove contaminated clothing. If skin irritation persists, call a physician.

Rinse immediately with plenty of water and seek medical advice.

Clean mouth with water and drink afterwards plenty of water. Do NOT induce vomiting. Obtain medical attention.

The product is not combustible. Use a dry powder, foam or CO2 fire extinguisher to extinguish the surrounding fire. Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.

DO NOT use water.

When heated above 580°C, calcium dihydroxide decomposes to produce calcium oxide (CaO) and water (H2O): Ca(OH)2 => CaO + H2O.

Avoid dust formation. Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.

Keep unprotected persons away. Ensure adequate ventilation.

Any large spillage into watercourses must be alerted to the Environment Agency or other regulatory body.

Contain the spillage. Keep the material dry if possible. Cover area if possible to avoid unnecessary dust hazard.

Pick up the product mechanically in a dry way. Use vacuum suction unit, or shovel into bags.

Avoid contact with skin and eyes. For personal protection see section 8. Keep dust levels to a minimum. Minimise dust generation. When handling bags usual precautions should be paid to the risks outlined in the Council Directive 90/269/EEC.

Store in a dry place. Minimise exposure to air and moisture to avoid degradation. Bulk storage should be in purpose designed silos. Keep out of the reach of children.

Avoid inhalation, ingestion and contact with skin and eyes. General occupational hygiene measures are required to ensure safe handling of the substance. These measures involve good personal and housekeeping practices (i.e. regular cleaning with suitable cleaning devices), no drinking, eating and smoking at the workplace. Shower and change clothes at end of work shift. Do not wear contaminated clothing at home.

Handling systems should preferably be enclosed or suitable ventilation installed to maintain atmospheric dust below the OES, if not wear suitable protective equipment.

Use approved nitrile impregnated gloves having CE marks.

Do not wear contact lenses. For powders, tight fitting goggles with side shields, or wide vision full goggles. It is also advisable to have individual pocket eyewash. Eye protection equipment (e.g. goggles or visors) must be worn, unless potential contact with the eye can be excluded by the nature and type of application (i.e. closed process).

Local ventilation to keep levels below established threshold values is recommended. A suitable particle filter mask is recommended, depending on the expected exposure levels - please check the relevant exposure scenario, given in the Appendix/available via your supplier.

Use clothing fully covering skin, full length pants, long sleeved overalls, with close fittings at openings. Footwear resistant to caustics and avoiding dust penetration. Additionally, face protection, protective clothing and safety shoes are required to be worn as appropriate.

All ventilation systems should be filtered before discharge to atmosphere. Contain the spillage. Keep the material dry if possible. Cover area if possible to avoid unnecessary dust hazard. Avoid uncontrolled spills to watercourses and drains (pH rising). Any large spillage into watercourses must be alerted to the Environment Agency or other regulatory body. For more information please see the relevant exposure scenario, available via your supplier/given in the Appendix, and check section 2.1: Control of worker exposure.

Under normal conditions of use and storage (dry conditions), the product is stable.

In aqueous media Ca(OH)2 dissociates resulting in the formation of calcium cations and hydroxyl anions (when below the limit of water solubility).

The product reacts exothermally with acids. When heated above 580°C, calcium dihydroxide decomposes to produce calcium oxide (CaO) and water (H2O): Ca(OH)2 => CaO + H2O. Calcium oxide reacts with water and generates heat. This may cause risk to flammable material.

Minimize exposure to air and moisture to avoid degradation.

The product reacts exothermally with acids to form salts. Reacts with aluminium and brass in the presence of moisture leading to the production of hydrogen. Ca(OH)2 + 2 Al + 6 H2O → Ca(Al (OH)4)2 + 3 H2

Disposal of the product should be in accordance with local and national legislation. Processing, use or contamination of this product may change the waste management options.

Dispose of container and unused contents in accordance with applicable member state and local requirements.