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Chemical Hazards and Reactions PREVIEW

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Information about Chemical Hazards and Reactions PREVIEW
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Published on January 20, 2008

Author: Manuele

Source: authorstream.com

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The following 10 slides represent a Sample Preview from this Training Presentation:  The following 10 slides represent a Sample Preview from this Training Presentation The complete “OSHA 600” based PowerPoint Presentation is available for subscribers to EH&S Manager Online. Chemical Hazards and Reactions :  Chemical Hazards and Reactions Chemical hazards and reactions Introduction:  Introduction Chemical hazards and reactions: Chemicals are the most common and significant health hazards Chemicals can be hazardous for numerous reasons and can combine with other chemicals to make new hazards All hazards must be taken into account when using and storing chemicals. Objectives :  Objectives At the end of this module, you will be able to: Recognize chemical hazards commonly encountered in the field Provide examples of physical and chemical characteristics of contaminants Explain warning properties of various chemical hazards Describe how to evaluate and control these hazards. Slide5:  The degree of hazard associated with a particular chemical will depend on: Its physical properties Its toxicity The way it is used The environment in which it is encountered. Physical Classification:  Physical Classification Solids Aerosols Liquids Vapors Chemicals may be found in solid, liquid, aerosol, or gas and vapor form. The degree of danger varies according to the form of the chemical and the factors previously discussed. Solids :  Solids Not all forms of a chemical pose a health hazard. For example, a lead pipe is not a significant health hazard. However, the lead can become a human health hazard if the pipe is sanded or welded, producing lead dust or fumes. The dust or fumes can become airborne and be inhaled, or it can leach into water and be ingested. Solids :  Solids A chemical may be hazardous even in solid form. For example, individuals who are sensitized to nickel may develop dermatitis from skin contact with the metal. Fuming solids emit toxic vapors that may be inhaled. Some materials, such as pesticides, can evaporate directly from solid form. Some solids are not a hazard alone but become hazardous when they come into contact with other chemicals (e.g., acid in contact with iron can release hydrogen gas). Aerosols:  Aerosols Aerosol is a term used to describe fine particles (solid or liquid) suspended in air. Examples of aerosols include dust, fumes, mist, fog, smoke, and smog. Knowing how various aerosols are generated will help you anticipate where aerosol hazards may exist in the field Aerosols may be a hazard to the eyes, skin, and the respiratory system. Liquids:  Liquids Many liquids are hazardous in contact with the skin. They either damage the skin or they are easily absorbed through the skin. It is important to remember that chemicals that can damage or be absorbed through the skin will have this effect on all skin, not just the hands. The degree of hazard associated with a liquid depends on its characteristics and how it is handled. Liquids:  Liquids For example, inhalation is the primary route for a chemical to enter the body. Its vapor pressure is important in determining the liquid degree of hazard. Liquids with a low vapor pressure may create a low airborne concentration. Liquids with a high vapor pressure may produce high airborne concentrations. The hazard level of an airborne concentration depends in part on the chemical's toxicity. Thank you for previewing our PowerPoint Training Presentation! :  Thank you for previewing our PowerPoint Training Presentation! As a subscriber to EH&S Manager Online, you'll get full access to all of our ready-to-use, customizable PowerPoint Presentations. 30-Day Risk-FREE Guarantee!:  30-Day Risk-FREE Guarantee! We're confident that you won't find a better one-source compliance solution at this low price. If you're not satisfied with your purchase, simply call us within 30 days for a full refund or credit. INTRODUCTORY OFFER! SAVE $100! :  INTRODUCTORY OFFER! SAVE $100! Just enter coupon code T272 in the coupon box when you pay online and you'll save $100! Join Now! Click Banner >

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