inorganic chemistry to abstract halides
  Sodium chlorite                      in organic synthesis, used for the oxidation of aldehydes to carboxylic
  Sodium hydride                       a strong base used in organic synthesis
  Sodium hydroxide                     strong base with many industrial uses; in the laboratory, used with
                                       acids to produce the corresponding salt, also used as anelectrolyte
  Sodium nitrite                       used to convert amines into diazo compounds
  Sulfuric acid                        strong mineral acid; major industrial use is the production of
                                       phosphoric acid
  Tollens" reagent                     a chemical test most commonly used to determine whether a known
                                       carbonyl-containing compound is an aldehyde or a ketone
                             HUMAN MADE MATERIALS
Any material that is manufactured by human effort or human made through industrial process. e.g.
Soaps, detergents, fertilizers, Glass, medicine, cement, plastics, fibers, etc.
Soap                                                           Fertilizers are commonly used for growing
                                                                all crops, with application rates depending
   Soap is water-soluble sodium or potassium                   on the soil fertility, usually as measured by
    salts of fatty acids. Soaps are made from                   a soil test and according to the particular
    fats and oils, or their fatty acids, by                     crop.
    treating them chemically with a strong                     Organic fertilizers use decaying plants,
    alkali.                                                     fish, bone or other animal waste.
   Used as surfactants for washing, bathing,                  Commercial and homemade fertilizers
    and cleaning, but they are also used in                     contain      nitrogen,      phosphorus      and
    textile spinning and are important                          potassium (N-P-K) mixed in proportion to
    components of lubricants.                                   function.
Detergent                                                   Glass
   It is a surfactant or a mixture of surfactants             It is a mixture having no definite boiling
    with cleaning properties in dilute                          of freezing points.
                                                               It is also called a super cooled liquid.
   Higher end detergents contain enzymes
                                                               Most glasses are silicates.
    and optical brighteners. Some liquid
                                                               It is transparent and not affected by
    detergents contain nonionic surfactants.
    Sodium tripolyphosphate was an excellent
                                                               It can be moulded into any shape.
    builder used in laundry detergent powders.
                                                               The ingredients for making glass are
                                                                Limestone (CaCO3), Soda ash (Na2CO3)
                                                                and Sand (SiO2).
   It is any material of natural or synthetic
    origin (other than liming materials) that is
    applied to soils or to plant tissues (usually
    leaves) to supply one or more plant
    nutrients essential to the growth of plants.