This document summarizes information about various categories of hazardous materials: Flammable materials include combustible and flammable liquids like ethers, esters, alcohols and ketones. They must be stored in air-tight containers in a cool, dry place. Organic solvents such as freons, ethers and alcohols can damage skin and respiratory tissues with repeated contact. Corrosives like acids and bases can cause serious burns and should only be handled with proper protective gear. Explosives such as nitro compounds, azides and organic nitrates require warning signs and minimal quantities, while peroxide-formers containing potassium metals and ethers must be stored at low but above freezing temperatures

1. Flammable materials by Jasmine Rivera & Amanda Warren Module 4

2. Flammable Materials Flammable materials Organic solvents Corrosives Explosives Peroxide- Formers Toxics

3. Flammable Materials Can include combustible and flammable liquids, such as: Ethers Esters Ketones Alcohol Materials need to be stored in air-tight containers in a cool, dry and dark place. White/yellow phosphorus should be cut and stored under water. Flammable solids can include organic and inorganic solids.

4. Organic solvents These can include freons, ethers, alcohols, aliphatic hydrocarbons, ketones, and aromatic hydrocarbons. If repeatedly in contact with skin, pain, itching, reddening, and blistering can happen. Mucous membranes and the respiratory tract can be damaged. A less toxic solvent should be substituted when at all possible.

5. Corrosives Acids & Bases Both have solids & liquids All are hazardous & should be handled appropriately Non-flammable but can react with each other to cause a fire or explosion. Safety Use proper gear when handling corrosives Always read labels before using Can cause serious burns to the body

6. Explosives These can include: Nitro compounds Azides Organic nitrates Peroxides Warning signs should be posted around these items. The smallest quantities should be used when they are used. Special protection should be worn such as clothing, gloves and/or goggles.

7. Peroxide-formers These can include: Potassium metals Tetralin Alkenes Ethers Store at low temperatures but above freezing Wear a face shield when handling these chemicals If there are crystals around the cap, do not open or use

8. Toxins All chemicals, to an extent, are toxic. They should all be handled with caution. All chemicals should be used with protective equipment. General safe work practices should be used at all times when chemicals are handled. Lists are available electronically for how the materials are classified.