Note that the word is 'reagent' and not 'reactant', because these two words are different and they mean different things, OK? The word reagent is taken to mean a substance that can be taken from a shelf or from a store cupboard geddit? If students are requested to specify the name of a reagent they must give the full name of the compound, eg sodium hydroxide rather than 'hydroxide ions '
Strips or tablets that people use to test the level of glucose (sugar) in their blood and urine or the level of acetone in their urine These reagents are treated with chemicals that change color during the test Each type of reagent has its own color code to show how much glucose or acetone there is at the time of the test
Chemicals which are added to water samples to react with a specific chemical in the sample to produce a measurable effect (such as the formation of colour) which enable the determination of the concentration of a particular chemical(s) in the water- see also colourimeter
Reaction solutions and enzymes, used to carry out chemical or enzymatic reaction sequences
Substances used to recover the tiny particles of phosphate rock during the flotation process Phosphate reagents include fuel oil, soap skimmings and fatty acids When coated with these substances, the phosphate particles repel water and are attached to air bubbles which float them to the surface of the vessel, while the sand sinks
Reagents come in a variety of different qualities For the work that is done in environmental testing, the use of chemicals meeting American Chemical Society (A C S ) requirements is recommended
The chemical agents, dyes, indicators or titrants used in testing various aspects of water quality
A usually available or readily made compound or known mixture of compounds used to treat materials, samples, other compounds or reactants in a laboratory or sometimes an industrial setting
A reagent is a substance that is used to cause a chemical reaction. Reagents are often used in order to indicate the presence of another substance. a substance that shows that another substance in a compound exists, by causing a chemical reaction (present participle of reagere , from agere )