Cobalt(II) chloride in vapor-phase co-reductions with other metal halides by hydrogen results in finely divided intermetallics with applications as structural materials or compounds with useful thermoelectric, magnetic, and oxidation-resistance properties.
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Tetraethylenepentamine – TEPA is an organic chemical. It belongs to the group of ethylene-amines. It is a very useful chemical substance that is industrially made by the reaction of aqueous ammonia with 1,2-dichloroethane and then neutralisation and fractional distillation. Its chemical formula is C8H23N5. It is a polyazaalkane. Chemical Appearance Tetraethylenepentamine – TEPA, similar in appearance to most amines, is not colourless but has the appearance of a yellow coloured liquid. It is a somewhat viscous liquid. It is soluble in many polar solvents. It is slightly less dense than water. Its vapours are heavier than air. Chemical Applications and Strengths
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The chemical is highly stable in neutral media and average room temperature. However, it is highly reactive with alkaline media where it decomposes and warms the alkaline material instead. The main use if the compound is a fungicidal spray on grapes, tea, coffee, cotton and cardamom. In rubber, it is sprayed from the above to control attack on the leaves.
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