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naoh

naoh


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  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 
  readily  oxidized  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  23.  Specific 
  gravity  0.97. 
 
  {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  bicarbonate},  a  white  crystalline  substance, 
  {HNaCO3},  with  a  slight  alkaline  taste  resembling  that  of 
  sodium  carbonate.  It  is  found  in  many  mineral  springs  and 
  also  produced  artificially,.  It  is  used  in  cookery,  in 
  baking  powders,  and  as  a  source  of  carbonic  acid  gas 
  (carbon  dioxide)  for  soda  water.  Called  also  {cooking 
  soda},  {saleratus},  and  technically,  {acid  sodium 
  carbonate},  {primary  sodium  carbonate},  {sodium 
  dicarbonate},  etc 
 
  {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},  above  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. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  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. 
 
  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. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  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. 
 
  2.  Severe;  satirical;  sharp;  as  a  caustic  remark. 
 
  {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.