NaOH

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Sodium \So"di*um\, n. [NL., fr.E. soda.] (Chem.)
     A common metallic element of the alkali group, in nature
     always occuring combined, as in common salt, in albite, etc.
     It is isolated as a soft, waxy, white, unstable metal, so
     highly reactive that it combines violently with water, and to
     be preserved must be kept under petroleum or some similar


     liquid. Sodium is used combined in many salts, in the free
     state as a reducer, and as a means of obtaining other metals
     (as magnesium and aluminium) is an important commercial
     product. Symbol Na ({Natrium}). Atomic weight 22.990.
     Specific gravity 0.97.
     [1913 Webster]
  
     {Sodium amalgam}, an alloy of sodium and mercury, usually
        produced as a gray metallic crystalline substance, which
        is used as a reducing agent, and otherwise.
  
     {Sodium carbonate}, a white crystalline substance,
        {Na2CO3.10H2O}, having a cooling alkaline taste, found in
        the ashes of many plants, and produced artifically in
        large quantities from common salt. It is used in making
        soap, glass, paper, etc., and as alkaline agent in many
        chemical industries. Called also {sal soda}, {washing
        soda}, or {soda}. Cf. {Sodium bicarbonate}, and {Trona}.
        
  
     {Sodium chloride}, common, or table, salt, {NaCl}.
  
     {Sodium hydroxide}, a white opaque brittle solid, {NaOH},
        having a fibrous structure, produced by the action of
        quicklime, or of calcium hydrate (milk of lime), on sodium
        carbonate. It is a strong alkali, and is used in the
        manufacture of soap, in making wood pulp for paper, etc.
        Called also {sodium hydrate}, and {caustic soda}. By
        extension, a solution of sodium hydroxide.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ternary \Ter"na*ry\, a. [L. ternarius, fr. terni. See {Tern},
     a.]
     1. Proceeding by threes; consisting of three; as, the ternary
        number was anciently esteemed a symbol of perfection, and
        held in great veneration.
        [1913 Webster]
  
     2. (Chem.) Containing, or consisting of, three different
        parts, as elements, atoms, groups, or radicals, which are
        regarded as having different functions or relations in the
        molecule; thus, sodic hydroxide, {NaOH}, is a ternary
        compound.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Caustic \Caus"tic\, Caustical \Caus"tic*al\, a. [L. caustucs,
     Ge. ?, fr. ? to burn. Cf. {Calm}, {Ink}.]
     1. Capable of destroying the texture of anything or eating
        away its substance by chemical action; burning; corrosive;
        searing.
        [1913 Webster]
  
     2. Severe; satirical; sharp; as, a caustic remark.
        [1913 Webster]
  
     {Caustic curve} (Optics), a curve to which the ray of light,
        reflected or refracted by another curve, are tangents, the
        reflecting or refracting curve and the luminous point
        being in one plane.
  
     {Caustic lime}. See under {Lime}.
  
     {Caustic potash}, {Caustic soda} (Chem.), the solid
        hydroxides potash, {KOH}, and soda, {NaOH}, or solutions
        of the same.
  
     {Caustic silver}, nitrate of silver, lunar caustic.
  
     {Caustic surface} (Optics), a surface to which rays reflected
        or refracted by another surface are tangents. Caustic
        curves and surfaces are called catacaustic when formed by
        reflection, and diacaustic when formed by refraction.
  
     Syn: Stinging; cutting; pungent; searching.
          [1913 Webster]