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  2. List of reagent testing color charts - Wikipedia

    en.wikipedia.org/wiki/List_of_reagent_testing...

    Reagent test Alcohols: Forms Lucas test in alcohols is a test to differentiate between primary, secondary, and tertiary alcohols. Alkaloids: Forms Froehde Liebermann Mandelin Marquis Mayer's Mecke Simon's: Amines, and amino acids: Forms Folin's: Barbiturates: Class Dille–Koppanyi Zwikker: Benzodiazepines: Class Zimmermann: Phytocannabinoids ...

  3. Phosphate test - Wikipedia

    en.wikipedia.org/wiki/Phosphate_test

    The absorbance of the blue solution can be measured with a colorimeter and the concentration of phosphate in the original solution can be calculated. Alternatively, a direct (but approximate) reading of phosphate concentration can be obtained by using a Lovibond comparator. This method for phosphate determination is known as Denigés' method ...

  4. Colorimetric analysis - Wikipedia

    en.wikipedia.org/wiki/Colorimetric_analysis

    Colorimetric analysis is a method of determining the concentration of a chemical element or chemical compound in a solution with the aid of a color reagent.It is applicable to both organic compounds and inorganic compounds and may be used with or without an enzymatic stage.

  5. The 10 Best Drinking Water Test Kits You Can Order Online - AOL

    www.aol.com/news/7-best-drinking-water-test...

    Quickly and easily test for commonly found pollutants like lead and copper in your home’s drinking water.

  6. Phosphate - Wikipedia

    en.wikipedia.org/wiki/Phosphate

    In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid, a.k.a. phosphoric acid H 3 PO 4. The phosphate or orthophosphate ion [PO 4] 3− is derived from phosphoric acid by the removal of three protons H +.

  7. Molybdenum blue - Wikipedia

    en.wikipedia.org/wiki/Molybdenum_blue

    The amount of the blue coloured ion produced is proportional to the amount of phosphate present and the absorption can be measured using a colorimeter to determine the amount of phosphorus. Examples of procedures are: the analysis of phosphate in sea water. [6] standard methods for determining phosphorus and silicon content of metals and metal ...

  8. Phosphoric acids and phosphates - Wikipedia

    en.wikipedia.org/.../Phosphoric_acids_and_phosphates

    The term phosphate is also used in organic chemistry for the functional groups that result when one or more of the hydrogens are replaced by bonds to other groups. These acids, together with their salts and esters , include some of the best-known compounds of phosphorus, of high importance in biochemistry , mineralogy , agriculture , pharmacy ...

  9. Silver phosphate - Wikipedia

    en.wikipedia.org/wiki/Silver_phosphate

    Silver phosphate or silver orthophosphate is a light sensitive, yellow, water-insoluble chemical compound composed of silver and phosphate ions of formula Ag 3 P O 4. Synthesis, reactions and properties