1.
Identification of the Substance and Company Product Name:
Lime Putty/Lime Mortar/Lime Plaster/Limewash CAS No: 1305-62-0
2. Composition/Information on Ingredients
Lime putty is a gel of Calcium Hydroxide Ca(OH)2 Trace quantities of calcium
carbonate. Lime Mortar and Lime Plaster are mixtures of sand and lime
putty. Limewash is a 50% solution of lime putty in water, with natural
earth pigments added for colour. Hazardous Ingredient - calcium hydroxide.
3. Hazard Identification
Irritating to eyes and skin. Risk of serious damage to eyes. May cause
burns.
4. First Aid Measures
Skin Contact - Remove contaminated clothing. Wash immediately with plenty
of water.
Eye Contact - SPEED IS ESSENTIAL. Remove particles with cotton
wool bud, irrigate with eyewash or clean water until medical help is obtained,
as soon as possible.
Inhalation - irritating to the respiratory tract if limewash inhaled as
spray. Remove from exposure and keep warm. Irrigate nose and throat with
water for at least 20 minutes Further medical treatment - symptomatic,
if necessary. No known delayed effects. Prolonged or repeated contact
with skin may cause severe irritation or dermatitis.
5. Fire Fighting Measures
Non-combustible. No special fire-fighting procedure, extinguisher media
for explosion hazard is identified.
6. Accidental Release
Measures
Spillages: contain and absorb using earth or sand. Avoid contamination
of drains and watercourses. Spillages into watercourses must be alerted
to the National Rivers Authority.
7. Handling and Storage Handling
avoid contact with skin and eyes Storage: store in a frost-free environment.
Keep away from strong acids.
8. Exposure Control/Personal Protection
Wear suitable gloves, overalls and eye/face protection.
Occupational exposure standard: 5 mg/m3 (8 hr TWA) as calcium hydroxide.
Rubber gloves provide suitable hand protection. Hands and exposed skin
can also be protected with barrier cream. Long-sleeved overalls, close
fitting at openings. Wide vision full goggles with anti-mist for eye
protection.
9. Physical and Chemical Properties of Calcium Hydroxide as Lime
Putty
Form gel Solubility n/a Colour White Vapour pressure 17.5mm HG at 20oC
Odour faint "earthy" odour Specific gravity 1.3 pH 12.4 Boiling point
100oC
10. Stability and Reactivity
Stable Reacts vigorously with strong acids. Attacks aluminium,
lead and brass Hazardous decomposition products; at 580oC decomposes
to form Calcium Oxide (quicklime)
11. Toxicological Information
Skin contact: Irritant
Eye contact: Painful irritant, with risk of severe and permanent damage
to eyes.
As limewash: Inhalation: high concentration of mist may be irritant
to respiratory tract.
Ingestion: may cause irritation of gastrointestinal tract.
Long-term exposure: prolonged and repeated skin contact may cause dermatitis.
12. Ecological Information
Mobility: low mobility in most ground conditions.
Persistence & degradation: non-biological - reacts with atmospheric
and dissolved carbon dioxide to form calcium carbonate (limestone).
Toxicity: the product is considered to be non-toxic. Effects on effluent
treatment; high concentrations may have a sterilising effect in sewage
works.
13. Disposal considerations
Disposal should be in accordance with current local and national legislation,
typically to licensed waste facilities.
14. Transport information
Not classified as hazardous for transport.
15. Regulatory information
The Chemicals (Hazard Information and Packaging) Regulations 1994 Statutory
Instrument 1994 No 3247
Classification for conveyance: none
Classification for supply: irritant
Risk phrases: irritating to skin risk of serious damage to eye
Safety phrases: wear suitable gloves and eye/face protection in case
of contact with eyes rinse immediately with water and seek medical advice
- keep out of the reach of children
Occupational Exposure Limits 1996 - HSE guidance note EH40/96 OES 5
mg/m3 (8 hr TWA) as calcium hydroxide
Data prepared in accordance with Directive 91/155/EEC.
16. Other Information: this revision issued January 2002.
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