F 5600.1010-F 6000.0000 FIXATIVES 227 



6600.1010 Bachuber 1916 2975, 30:294 



formvla: water 190, chromic acid 3.75, picric acid 2.4, 40% formaldehyde 37, acetic 

 acid 25 



5600.1010 Painter 1924 763,27:77 



FORMULA : water 225, picric acid 2.5, chromic acid 3.75, acetic acid 25, 40% formaldehyde 

 62, urea 5 



5670.1000 PICRIC-CHROMIC-DICHROMATE-FORMALDEHYDE 



6670.1000 Chura 1925 23632, 42 :55 



formula: water 200, picric acid 0.16, chromium fluoride 1, chrome alum 1, potassium 



dichromate 4.75, formaldehyde 50 

 RECOMMENDED FOR: fix 24 hours. Then transfer to ADS 12. 1 Chura 1925a, if chromosomes 



are to be stained, or to ADS 12.1 Chura 1925b for mitochondria. 



5700.0000 PiCRIC-DICHROMATE 



5700.0000 Schultze 1904 23632, 21 :7 



formula: water 250, picric acid 0.125, potassium dichromate 7.5 



5700.0050 Picric-dichromate-sulfuric 



6700.0050 Vialleton 1887 915, 6:168 



formula: water 250, picric acid 0.4, potassium dichromate 1.25, sulfuric acid 2.5 



5700.1 01 Picric-dichromate-formaldehyde-acetic 



5700.1010 Lenoir 1930 6630, 103:1253 



formula: water 50, 95% ale. 100, ammonium dichromate 6, 40% formaldehyde 50, 

 water 38, acetic acid 12, picric acid to sat. 



5800.1010 Picric-(other inorganic salts)-pormaldehyde 



5800.1010 Goodrich 1919 17510, 64:38 



formula: water 190, picric acid 2, water 1, potassium iodide 0.25, iodine 0.125, 40% 

 formaldehyde 56, acetic acid 11 



5800.1010 Turchini 1919 6630, 82:1131 



formula: water 250, picric acid 2, ammonium molybdate 17, 40% formaldehjale 50 

 recommended for: fixation of thiazin dyes in tissues. 



F 6000 CHROMIC ACID IN COMBINATION WITH 

 FIXATIVE AGENTS OF HIGHER NUMERICAL RANK 



6000.0000 Chromic Alone 



Chromic acid used alone can scarcely be considered a fixative; it is rather a hardening 

 agent. It has a very low penetration and is used as a fixative only for marine forms containing 

 large quantities of w^ater. 



6000.000 Lo Bianco 1890 14246, 9 :443 



formula: 35% ale. 250, chromic acid 1.25 



6000.0000 Howell 1884 test. 1910 Poll Ehrlich, Krause, et al. 1910, 1:222 



formula: 30% ale. 250, chromic acid 0.125 



6000.0000 Klein 1878 17510, 18:315 



formula: 30% ale. 250, chromic acid 0.275 



6000.0000 Pritchard 1873 17510, 13:427 



formula: 75%, ale. 250, chromic acid 2.5 



6000.0000 Vlakovic test. 1926 E. W. B. at. Wilkie 11360, 46:287 



formula: water 30, 95% ale. 220, chromic acid 0.7 



