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| Chisel, cold
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A metal cutting chisel which incorporates a striking surface and handle with the shank of the chisel. The length of the chisel is wedge shaped for about a third of the way, tapering down to a hardened cutting edge. Hammers are used to strike a cold chisel. |
| Chisel, masonry
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| Chisel, wood
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Wood cutting chisel, which can be used by hand for shaving or hit with a mallet for heavier cutting. |
| Chlorinated polyethylene1 (cpe)
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A flexible material with high tear strength, good chemical resistance and patency towards UV radiation. As a result of the high chlorine content (typically 30%) it is inherently difficult to ignite, but releases hydrogen chloride during combustion. It suffers from an extremely high permeability to gas. Resistance to most inorganic chemicals is generally good, while resistance to hydrocarbons increases with increasing chorine content. The material is used mainly as an impact modifier for PVC and, to a lesser extent, LDPE and HDPE film. |
| Chlorinated polyvinyl chloride (cpvc)
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Rigid plastic pipe used in water supply systems, where code permits. Withstands high temperatures. Available in straight or in rolls. |
| Chlorine
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A gas, C2, widely used in the disinfection of water and an oxidizing agent for organic matter, iron, etc. |
| Chlorofluorocarbon (cfc)
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A family of chemicals composed primarily of carbon, hydrogen, chlorine, and fluorine whose principal applications are as refrigerants and industrial cleansers and whose principal drawback is the tendency to destroy the Earth's protective ozone layer. |
| Chlorophyll
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The green pigment in leaves. It will be dominant in the plant when present or healthy. |
| Chlorosis
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An abnormal yellowing or blanching of the leaves due to lack of chlorophyll. |
| Chlorosulfonated polyethylene
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A synthetic, rubber-like thermoset material, based on high molecular weight polyethylene with suphonyl chloride, usually formulated to produce a self-vulcanizing membrane. Chlorosulfonated Polyethylene or CSPE. Best know as Hypalonª, it was developed in 1951 by DuPont. |
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