272 (GENERAL SCIENCE 



REMOVAL OF STAINS AND GREASE SPOTS Continued 



Nature of Stain. 



Silk Goods. 



Woolen Goods. 



Cotton or Linen. 



Iodine. 



Varnish (shellac) 



Scorch stains. 



Color stains (sub- 

 stantive and 

 basic). 



Dilute solution of potas- 

 sium cyanide. Wash 

 thoroughly in water, or 

 a solution of pure so- 

 dium hypophosphate, 

 and then strong ammo- 

 nium water. Dry be- 

 t\veen blotting papers. 



Methylated spirit alone, 

 or with carbon tetra- 

 chloride. 



Potassium permanganate, 

 followed by sulphurous 

 acid, or hydrogen per- 

 oxide. 



White Goods. Decorline 

 (or other stable hydro- 

 sulphite) and acetic 

 acid, o r methylated 

 spirit and ammonia, or 

 hydrogen peroxide. 



Colored Goods. As above, 

 if colors are not affected 

 thereby. 



Same as silk. 



Same as silk. 



Hydrogen 

 oxide. 



per- 



As silk goods. 



Hydrogen per- 

 oxide or so- 

 dium hypo- 

 chlorite. 



White Goods. Ti- 

 tanous chloride 

 (warm). 



Colored Goods. 

 Titanous chlo- 

 ride (cold and 

 dilute). 



NOTE. Potassium cyanide is deadly poison. Care should be taken in handling it. 



Ink. Ink stains are very hard to remove because it is impossible 

 to tell what the nature of the ink is. Colored material may be 

 soaked in sour milk. Free chlorine bleaches ink quite readily, 

 and nearly all ink eradicators depend upon this element for re- 

 moving the color. 



On an ink spot apply alternately bleaching powder and dilute 

 solution of hydrochloric or oxalic acid. If the ink spot is old 

 and hard to remove, use a few crystals of fresh stannous chloride, 

 followed by oxalic acid, and wash. The stannous chloride changes 



