Step 1 – Eliminate the Hazard The first choice in any safety program is to eliminate the hazard. – Find safer materials – As long as a hazardous material is present there is a risk. Only eliminating the hazard will eliminate the risk – Wait long enough and the risk will be realized.
Excessive Risk Chemicals - Risk Exceeds Educational Utility Chemical Hazards Acetic Anhydride Explosive potential, corrosive Acetyl Chloride Corrosive, dangerous fire risk, reacts violently with water and alcohol Acrylamide Toxic by absorption, suspected carcinogen Acrylonitrile Flammable, poison Adipoyl Chloride Corrosive; absorbs through skin, lachrymator Aluminum Chloride, anhydrous Water reactive, corrosive
HIGH RISK CHEMICAL PERMIT General Information –Chemical, date, teacher List of hazards associated with chemical and what controls will you have for them Disposal method for waste and leftover materials Signatures
Step 2- Reduce the Hazard Reduce the amount of hazardous materials as much as is reasonably practicable. There is still a hazard, but because the amount of hazardous materials present is small, the risk will be reduced. Select the least hazardous materials that will demonstrate the principle and keep amounts to a minimum.
High Risk Chemicals - Only Allow Very Limited Amounts in Storage ChemicalHazards Acetamide Carcinogen. P-Listed Extremely Hazardous Ammonium Nitrate Powerful oxidizer, reactive Barium Peroxide Fire and explosion risk with organic materials, oxidizer, toxic, Butyric Acid Corrosive; intense stench Cadmium sulfide Highly toxic, carcinogen