Material Safety Data Sheet
Product Identification	Pumice
Supplier	Soap Basics 23 Southbrook Road Melksham Wiltshire SN12 8DS UK Tel: 01225 899286
Product Description	Complex natural silicate, consisting mainly of amorphous silica (SiO2) but also containing minor quantities of various metallic oxides.
Chemical Analysis	Constituent	Name	% Occurrence
	SiO2	Silicon Dioxide	71.75
	Al2O3	Aluminium Oxide	12.33
	TiO2	Titanium Oxide	0.11
	Fe2O3	Ferric Oxide	1.98
	FeO	Ferrous Oxide	0.02
	MnO	Manganese Oxide	0.07
	CaO	Calcium Oxide	0.7
	MgO	Magnesium Oxide	0.12
	Na2O	Sodium Oxide	3.59
	K2O	Potassium Oxide	4.47
	P2O5	Phosphorous Pentoxide	0.008
	CO2	Carbon Dioxide	0.01
	SO2	Sulphur Trioxide	0.18
	H2O+	Combined Water	3.71
	Small variations in analysis will occur depending on the grade of pumice
Handling Precautions	No hazard has been brought to our attention as a result of the normal industrial use of this product. As with any finely divided inert material, steps should be taken to avoid inhalation of dust. Pumice consists of amorphous silica and does not contain quartz in allotropic crystalline forms such as Cristobalite, Tridymide etc. It is, however, recommended that users adhere to the T L V specified by the latest A C G I H and as listed for ‘Nuisance Particulates’ in H S E guidance note EH40.
First Aid Measures	Eye Contact: Wash out thoroughly with water to remove all dust particles.
Fire-Fighting Measures	Not applicable
Accidental Release Measures	Spillage: Sweep into container and dispose of as inert solid waste.
Handling and Storage	Storage: Store the product in dry conditions. Handling: Handle carefully to avoid raising high concentration of dust in the work area.
Exposure Control/Personal Protection	Provide eye wash bottle and clean water. Wear suitable dust mask. Consider local extraction/ventilation system to keep concentration in air below 10mg/cubic metre – the threshold limit value listed for ‘nuisance particulates’ in the Health & Safety Executive’s Guidance Note EH40 (but not specifically listing pumice powder).
Physical and Chemical Properties	Appearance: Powder Colour: Grey Odour: Odourless Melting point: 1500 deg C True density: 2.313 – 2.356 gms/cc Apparent density: 0.400 – 0.900 gms/cc Viscosity: Not applicable Solubility in water: Insoluble pH value: 7.5 – 8.0 Flash point: Not applicable Ignition point: Not applicable Explosive limit: Not applicable Refractive index: 1.5 Hardness: 6 (Mohs)
Stability/Reactivity	Pumice is an inert material, insoluble in water, alkalis and acids (other than hydrofluoric acids).
Toxicological Information	Non-toxic. Does not cause allergic or narcotic reaction. Lead and asbestos totally absent.
Environmental Protection	Natural, inert material. Material is not a pollutant.
Waste Disposal	As inert solid waste.
Transport Information	Not classed as hazardous for transportation.
Legislation	CAS No: 13320908 EH40 – Occupational Exposure Limits EH44 – Dust: General Principles of Protection No relevant EINECS number due to EU legislation 79/831, 6^th amendment 67/548/EEC including in heading ‘substances recurrent in nature’.
Other Information	The information in this safety sheet is, to the best of our knowledge, true and accurate, but any recommendations or suggestions that made be made are without guarantee, since the condition of use are beyond the control of Soap Basics. Observance of existing laws and requirements rests with the user of this product.