Safety- Coshh


Coshh Ca(OH)2 / CaO


Identification of substance
Product names:

  • Vivus No 1 Building Mix
  • Vivus No 2 Plaster & Render Base Coat
  • Vivus No 3 Plaster Skim
  • Vivus No 4 Binder
  • Vivus No 5 Fine Render top Coat
  • Vivus No 6 Casting Mix
  • Vivus No 7 Rough Cast

Description Air lime: An odorless white powder soluble in water.

2. Supplier/manufacturer

  • Vivus Solutions Ltd, PO Box 9158, Dorchester, DORSET DT1 9HJ
  • Technical Help - tel: 07986185894
  • Email:

3Composition/information on ingredients

  • Chemical description
    The principle constituent of Vivus products is calcium hydroxide Ca(OH)2. Additional constituents may also be present e.g.  dried sands, natural limestone dusts.
  • Hazardous ingredients
    Hazardous ingredient – calcium hydroxide.

4. Hazards identification

  • Irritating to eyes and skin. Can cause burns in the presence of moisture. It is advisable to ensure that eye wash is available  when hydrated lime, wet lime putty is handled.

5. First aid measures/emergency first aid procedures

  • Eye contact - Irrigate with water for at least 20 minutes. SEEK MEDICAL ATTENTION. SPEED IS ESSENTIAL.
  • Skin contact
  • Wash affected area immediately with plenty of water. Remove contaminated clothing.
  • Ingestion
  • Do not induce vomiting. Wash mouth with water and drink copious quantities of water. Seek medical advice if necessary.
  • Inhalation
  • Irrigate nose and throat with water for at least 20 minutes. It is advisable to seek medical attention. Remove patient from  prolonged and repeated inhalation of high exposure.
  • Further medical treatment
  • No known delayed effects. Prolonged or repeated contact with skin may result in severe irritation or dermatitis. Prolonged  or repeated inhalation of high dust concentrations may cause ulceration and perforation of the nasal septum and  pneumonitis.

6. Fire-fighting measures

  • Pure Air Lime is not combustible. No special fire-fighting equipment is required. No extinguishing media or explosion hazard  is identified.

7. Accidental release measures

  • Personal precautions See 9.3
  • Spillage
  • Contain the spillage. Keep the material dry or allow to dry if lime putty or fine lime plaster. Act to minimise dust. Avoid  contamination of drains or water courses. Keep children away from clean-up operation.

8. Storage and handling

  • General
    Keep dust levels to a minimum. Avoid contact with eyes and skin. Use barrier cream if necessary.
  • Ventilation requirements
    Ventilation equipment should be used in buildings to ensure dust levels are kept below the WEL (see 9.1). All ventilation  systems should be filtered before discharge to atmosphere.
  • Storage
    Minimise contact with air and moisture. Keep separate from flammable materials and chemicals with which it might react.  Packed products should not be in contact with flammable materials and storage should be indoors. Bags and tubs should be  stacked in a safe and stable manner.
  • Handling
    When handling packed products, due regard should be paid to the risks outlined in the Manual Handling Operations  Regulations. Some bags may have a small amount of lime on the outer surface. Appropriate personal protective clothing  (see 9.3) should therefore be used whilst handling.

9. Exposure controls/personal protection

  • Workplace Exposure Limit (WEL)
  • Recommended limit 4mg/m3 (8 hour Time Weighted Average).
  • Engineering measures
  • Handling systems should preferably be enclosed or suitable ventilation installed to maintain atmospheric dust below WEL.
  • Personal protective equipment
  • Long-sleeved overalls, boots and fabric/ composite gloves should be worn, along with wide vision goggles with anti-mist for eye protection. If atmospheric dust exceeds WEL, approved dust respirators or air-streamed helmets should be worn.

10. Physical/chemical properties

  • Form Pure Air lime– fine dry powder.

11.Stability and reactivity

  • Stable.
  • Avoid exposure to moisture.
  • Reacts to acids with the evolution of heat.

12. Toxicological information

  • Short term effects
    Eye contact – can be very painful. May cause partial or total loss of sight if untreated.
    Skin contact – irritating to skin. May cause burns in the presence of moisture.
    Ingestion – cause corrosion of and damage to gastrointestinal tract.
    Inhalation – irritant to respiratory tract.
  • Long Term effects
    May cause irritation to skin and dermatitis. Prolonged and repeated inhalation of high concentrations may damage the respiratory tract.

13.Ecological information

  • Mobility
    Soluble in water as hydroxide to form alkaline solution. Low mobility in most ground conditions.
  • Persistence and degradability
    Non biodegradable – reacts with atmospheric carbon dioxide to form calcium carbonate (limestone).
  • Bio accumulative potential
    Aquatic toxicity
    Colour Odour pH
    Melting point Vapour Pressure Bulk density
    Solubility in water non toxic LC50 aquatic toxicity values are > 100mg/litre white to off-white or grey possible earthy odour
    11.5 – 13 (as aqueous solution approximately 2g/litre) 5800C 0mmHg at 200C 480kg/m3 (loose), 590kg/m3 (compacted)
    1.76g/liter saturated solution at 100°C
    Concentrations of pure air lime have a sterilisation effect in treatment works. Product used in treatment of acid wastes and    sewage sludges.

14. Disposal considerations

  • Empty Pure air lime packaging can normally be disposed of only at licensed waste facilities. Disposal should be in        accordance with local and national legislation. Keep out of reach of children.

15. Transport information

  • Not classified as hazardous for transport by road and rail.

16. Regulatory information

  • The Chemicals (Hazard Information & Packaging) Regulations
  • Classification for supply: Irritant 
  • Classification for conveyance: None

16 Risk/safety phrases

  • Risk phrases
    Risk of serious damage to eyes.
    Contact with wetted Pure air Lime, may cause irritation, dermatitis or burns.
    Contact between Hydrated Lime, Lime Mortar powder and body fluids (e.g. sweat and eye fluid) may cause skin and    respiratory irritation, dermatitis or burns.
  • Safety phrases
    Avoid eye and skin contact by wearing suitable eye protection, waterproof clothing, waterproof footwear and waterproof    gloves.
    Clothing contaminated by wetted Hydrated Lime, wetted Lime Mortar, Lime Putty or Fine Lime Plaster should be removed  immediately and washed before re-use.
    Avoid breathing dust.
    Keep out of reach of children.
    On contact with eyes or skin, rinse immediately with plenty of clean water. Seek medical advice after eye contact.

17. Legislation and other information

  • Health and Safety at Work etc. Act 1974
  • Control of Substances Hazardous to Health (Regulations)
  • HSE Occupational Exposure Criteria Document Summaries 1993 Edition (ISBN 01 18821202)
  • HSE Guidance Note EH26 (Occupational Skin Diseases – Health and Safety Precautions)
  • HSE Guidance Note EH40 (Workplace Exposure Limits)
  • Any authorised manual on First Aid by St. John’s/St. Andrew’s/Red Cross
  • Manual Handling Operations Regulations
  • Environmental Protection Act
  • Data sheet prepared in accordance with Directive 91/155/ECC