How to use Chemical-agents in a sentence
The effect of chemical agents in producing coagulation are in consonance with what is known of other instances of polymeric or condensation changes, whilst the fact that the collection of globules separated by creaming after thorough washing, and therefore removal of all proteid, is susceptible of solidification into caoutchouc by a merely mechanical act such as churning, strongly supports the view that the character of the change is distinct from that of any alteration which may occur in the proteid constituents of the latex.
When this volatile liquid hydrocarbon (isoprene) is allowed ro stand for some time in a closed bottle, it gradually passes into a substance having the principal properties of natural caoutchouc. The same change of isoprene into caoutchouc may also be effected by the action of certain chemical agents.
For this reason chemical agents are added to glass mixtures to remove or neutralize accidental colour.
The group has told recent visitors to its enclave that it holds stocks of the deadly chemical agents ricin, cyanide gas and aflatoxin.
Pesticides and similarly constructed chemical agents can cause cancer and can damage human endocrine and nervous systems, and they can be found in the soil, food, water, and in the air.Advertisement
At one time or another, a number of chemical agents used in conventional farming have been linked to cancer in humans, like dicofol, cyanide and propargite.
There are four chemical agents that may be used for this purpose, either alone or in combination.