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Handle organic peroxide chemials safely
Editor:tanjie  Post Time:2010-05-20  Click:

It is important to note that organic peroxides differ widely in their relative hazard level depending on their composition.There are shipping and storage regulations which apply to organic peroxides. In the United States, the Department of Transportation (DOT) has specific regulations concerning the size and type of package in which peroxides can be shipped. The DOT has now adopted the United Nations (UN) system and shipment. The resulting requirements stipulate the container size, type and labeling which must be used for shipping organic peroxide products.Failure to follow the DOT requirements could result in accidents or very substantial fines.
* Class V peroxides are formulations that bum with less intensity than ordinary combustibles or do not sustain combustion and that present no reactivity hazard. NFPA 43B contains tables indicating the class of different peroxide formulations. It is important to know the hazard class of the peroxide so you can determine the relative risk.
There are a few fundamental things which must be controlled if organic peroxides are to be stored and handled safely. The primary concerns can be easily summarized:

* Avoid overheating the peroxide;

* Avoid peroxide contact with incompatible materials.
Keep peroxides at a safe temperature
Avoid incompatible materials
Employee exposure/health concerns

Awareness and concern about the effects of employee exposure to chemicals is growing all the time. As with the burning and decomposition hazards, the toxicity of the various peroxide formulations on the market varies widely. In general, we recommend that employees limit their exposure to chemicals as much as possible. Since using some of the peroxide products may result in possible inhalation or skin and eye contact hazards, local controls or special personal protective equipment may be required.

OSHA hazard communication regulations require that all employees be thoroughly trained about the hazards of any materials they are working with. In the case of peroxides, this should include not only employee exposure concerns but also decomposition and fire hazards.

* Always use clean, uncontaminated containers to place the spilled peroxide into.

* Don't put the spilled peroxide back into the original container.

* Avoid using "oil dry" or other absorbents that are acidic since the acidic component can sometimes cause the peroxide to decompose. Clean, dry sand or calcium carbonate are preferred adsorbents for liquid peroxide spills.
Summary

Organic peroxides have been used safely in rubber and plastic compounding operations for many years. Incidents have occurred, however, when peroxides were stored or handled improperly. Following a few fundamental rules of peroxide safety is all that's needed to use these materials safely.

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