Sodium Hydroxide Safety
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Sodium Hydroxide safety is an extremely important consideration when handling or working with this material, either in liquid form or as a 'solid' in flake or pellet form.
Sodium Hydroxide, Lye, Caustic Soda and NaOH are all names for the same material which is classified as 'Corrosive'. It has the potential to seriously burn eyes, skin and internal organs so due care must be taken when handling or working with the substance. Personal Protective Equipment (PPE) must always be worn and this should include eye and skin protection.
One important consideration of Sodium Hydroxide safety is that if it comes into contact with skin, the initial sensation is often one of 'itching' rather than the pain normally associated with a burn. However, the damage caused by a Sodium Hydroxide burn is often deeper because it is possible to be initially unaware of a Sodium Hydroxide burn having taken place. By the time it hurts, the damage is done.
Sodium Hydroxide safety should include plastic or rubber gloves and if handling large amounts, these would have to be full length gloves. If there are any signs of damage then gloves should be replaced. In its liquid form, Sodium Hydroxide safety must take into consideration that it will eventually permeate through the glove, so therefore it is best advice to replace gloves frequently.
Suitable protective clothing should be worn to avoid skin contact - this would include suitable chemical resistant overalls, safety boots which are resistant to chemicals, and eye protection. For eye protection, approved safety goggles should be worn. Always check that safety goggles are in good condition before commencing work with Sodium Hydroxide. Goggles should be discarded if they are damaged in any way and new ones worn. If there is any chance of a splash risk, Sodium Hydroxide safety should include a face visor for added protection.
If vapours or dusts are generated, work under fume extraction. if ventilation or extraction is insufficient, use suitable respiratory protection. As with all protective equipment, consult your supplier for compatibility with Sodium Hydroxide.
In the event of a spillage, Sodium Hydroxide safety would include absorbing the liquid spillage with sand, earth or other inert absorbant, while solids can be collected directly if it is safe to do so, with a scoop or shovel, otherwise, they should be mixed with inert materials and transferred to collecting containers. Always wear protective equipment as described above when dealing with spills.
Never discharge Sodium Hydroxide to the environment as it will contaminate the environment and can damage water systems by changing the pH of water. Always dispose of Sodium Hydroxide according to local regulations.
http://www.sodium-hydroxide.co.uk/sodium-hydroxide-safety | Saved Thursday, January 28th, 2010 - 6:07 AM