DS 11.28 DYE STAINS OF GENERAL APPLICATION 307 



11.28 Frey 1877 horax-carmine Frey 1877, 95 



formula: water ;i5, sodium borate 3.5, carmine 0.6, 05% ale. 00 



preparation: Boil dye with water and borax. Cool. Filter. Add ale. to filtrate; leave 

 24 hours. Filter. 



11.28 Fyg 1928a chrome'Carmine 23032, 45 :2 12 



formula: water 100, chrome alum 6, carmine 1 



preparation: Add carmine to boiling alum solution. Boil 15 minutes. Cool. Filter. 

 note: Copper alum may be substituted for chrome alum. Copper alum (Merck Index 

 1940, 165) is prepared by fusing together 34% potassium alum, 32% cupric sulfate, 

 32% potassium nitrate, and 2% camphor. 



11.28 Fyg 1928b soda-carmine 23632, 45 :242 



formula: water 100, sodium bicarbonate 5, carmine 0.5 

 preparation: Boil 5 minutes. Cool. Filter. 



11.28 Haug test. 1900 Pollack ammonia-carmine Pollack 1900, 80 



formula: carmine 1, ammonium chlorate 2, water 100, ammonia 0.25, lithium car- 

 bonate 0.5 

 preparation: Boil carmine in chlorate solution 15 minutes. Cool. Add other ingredients. 

 Filter. 



11.28 Kahlden and Laurent 1896 lithium-carmine Kahlden and Laurent 1896, 56 



formula: sat. aq. sol. lithium carbonate 100, carmine 3 

 preparation: Boil 15 minutes. Cool. Filter. 



11.28 Linder see P 12.2 Amann 1896 (note) 



11.28 Mayer 1897 magnesia-carmine 23632, 14:23 



formula: magnesium oxide 0.2, carmine 2, water 100 

 preparation: Boil 5 minutes. Cool. Filter. 

 note: Magnesium oxide very readily turns to the carbonate which cannot be used for 



this preparation. Hence the insistence on fresh magnesia {magnesia iisla — "burnt 



magnesia" in pharmacopeial Latin) in the original formula. 



11.28 Mayer 1902 aluminum-carmine 14246,10:490 



formula: water 100 aluminum chloride 1.5, carminic acid 0.5 



11.28 Orth test. 1892 Squire lithium-carmine Squire 1892, 33 



formula: water 100, lithium carbonate 1.5, carmine 2.5 

 preparation: Boil. Cool. Filter. 



11.28 Rawitz 1899 aluminum-carmine 14246, 10 :489 



formula: water 50, glycerol 50, aluminum nitrate 2, cochineal 2 



preparation: Boil the cochineal with the water and nitrate 1 hour. Cool. Filter. Add 

 glycerol. 



11.28 Rukhadze and Blajin 1929 see DS 23.33 Rukhadze and Blajin 1929 



11.28 Schmaus test. 1896 Kahlden and Laurent uranium-carmine 



Kahlden and Laurent 1896, 158 

 formula: water 100, sodium carminate 1, uranium nitrate 0.5 

 preparation: Boil 5 minutes. Cool. Filter. 



11.28 Thiersch test. 1871 Robin ammonia-carmine Robin 1871, 318 



formula: water 65, ammonium acetate 2, carmine 3, oxalic acid 3, 95% ale. 35 

 preparation: Dissolve acetate in 15 hot water. Add carmine, heat to solution. Add 



oxalic acid dissolved in 50 water slowly and with constant stirring. Cool. Filter. Add 



ale. to filtrate. 



11.28 Thiersch test. 1877 Frey ammonia-carmine Frey 1877, 94 



formula: water 40, 95% ale. 60, carmine 1.25, ammonia 1.25, oxalic acid 2 

 PREPARATION : Dissolve carmine in ammonia with 5 water. Filter. Add acid dissolved in 

 40 water. Add ale; leave 1 day; filter. 



