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Description

Kovacs ReagentKovacs reagent is a biochemical reagent consisting of isoamyl alcohol, para dimethylaminobenzaldehyde, and concentrated hydrochloric acid. It is used for the diagnostical indole test, to determine the ability of the organism to split indole from the amino acid tryptophan.

In this way Isaac Newton demonstrated that white light is a combination of the seven different colours found in a rainbow

It consists of a spring fixed at one end with a hook to attach an object at the other

Calcium hypochlorite is an inorganic compound with formula Ca(ClO)₂

Dipotassium phosphate is a highly water-soluble salt

Iron filings are very small pieces of iron that look like a light powder

It is easy to sterilize and reuse because nichrome wire resists deterioration with repeated heat/cooling cycles

and is a dark red crystalline powder

and solvents

tapered plug used to seal the openings of test tubes

A Sonometer is a device for demonstrating the relationship between the frequency of the sound produced by a plucked string

sodium tetraborate

allowing the vapors to condense and flow along the neck to a collection vessel placed underneath