CALCIUM CARBIDE tech

Hazard statements (CLP)

H260, H315, H318, H335

Code

Statements

H260

In contact with water releases flammable gases which may ignite spontaneously

CLP CLASSIFICATION

Contact with water > flam gas, category 1 H260: In contact with water releases flammable gases which may ignite spontaneously. Skin corrosion/irritation, category 2 H315: Causes skin irritation. Serious eye damage/irritation, category 1 H318: Causes serious eye damage. Spec target organ tox - single, category 3 H335: May cause respiratory irritation.

2.2 Label elements

Labelling according to regulation 1272/2008/EC

Signal word

Danger

Hazard pictograms

of 6 6.1 Personal precautions, protective equipment and emergency procedures Personal Protection Use approved personal protective equipment. Ensure no contact with water, acids or other aqueous solutions is possible. Evacuate area immediately. Do not allow other people to enter area. 6.2 Environmental precautions Enviromental Keep material out of sewers, storm drains, surface waters and soil. Notify the Environmental Agency and local Environmental Health Officer if major spillage occurs. 6.3 Methods and material for containment and cleaning up Major Spillage Shovel/sweep up into container for removal Minor Spillage Shovel/sweep up into container for removal 6.4 Reference to other sections See section 8.2 for information on protective equipment and section 13 for information on disposal.

Storage

Handling 7.1 Precautions for safe handling Avoid contact with water, acids or other aqueous solutions. 7.2 Conditions for safe storage, including any incompatibilities Store in a dry place protected against moisture and water. Keep well protected from ingress of water and well separated from acids 7.3 Specific end use(s) See section 1.2. Section 8. Workplace Exposure & Personal Protection 8.1 Control parameters Component CAS No Concentration Workplace Exposure Limits Long Term (8hr TWA) Short Term 15min period) Calcium carbide 75-20-7 >80% - Calcium oxide 1305-78-8 13% - 2.0 ppm - Silicon dioxide 68855-54-9 2% - Exposure data source(s) IOELV: Indicative Occupational Exposure Limit Value. 8.2 Exposure controls Respiratory Protection Presents no significant inhalation health hazard. Hand Protection Wear gloves. Eye Protection Use tightly fitting chemical splash proof glasses or goggles. Skin Protection Avoid contact with skin. Special Hazards No special precautions required. Section 9. Physical & Chemical Properties 9.1 Information on basic physical and chemical properties

Appearance/Odor

Sharp irregular, light grey to near black, rock-like solid. Characteristic-garlic type odour. pH 12.48 @20°C (1% Solution) Boiling Point Not available Melting Point 2300 °C Flash Point Not applicable Upper Flammable Limit Not applicable Lower Flammable Limit Not applicable Auto Ignition Not applicable Explosive Properties No. Oxidising Properties No. Vapour Pressure Not applicable Relative Density 2.2200 Water Solubility Reacts violently with water evolving a flammable gas which may explode or catch fire.

Further information

No data available. Section 10. Stability & Reactivity 10.1 Reactivity No data available. 10.2 Chemical Stability Stable under normal conditions but decomposes violently in contact with water. 10.3 Possibility of hazardous No data available. reactions 10.4 Conditions to Avoid Avoid contact with water or water vapour. 10.5 Incompatable Materials Contact with water or aqueous solutions evolves highly flammable acetylene gas. 10.6 Hazardous Decomposition Decomposes to form flammable acetylene and very toxic and highly flammable phosphine gas. Products