250 



CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



No. 5768. 



.: 



- 



No. 5770. 



No. 5772. 



No. 5780. 



No. 5784. 



No. 5786. 



No. 5788. 



No. 5792. 



No. 5846. 



5768. FLASK, Volumetric, Foots Flask, graduated, for determining fatty acid in cottonseed by saponi- 



fication. Capacity of bulb, 250 ce $2.25 



5770. FLASK, Volumetric, of heavy glass, with short neck, and mark low on neck. Widely used in 



fertilizer laboratories. Capacity, 250 cc 65 



5772. FLASK, Volumetric, graduated to deliver 58.3 ec, for determining degree of alkalinity in feed 



water for boilers 80 



5776. FLASK, Volumetric, conical shape with enlarged mouth, as used in oil analysis. Capacity, 100 cc. 



1.00 



5780. FLASK, Volumetric, with wide neck, for determination of insoluble phosphoric acid. Capacity, 



200 cc; diameter of neck inside, 25 mm .65 



5784. FLASKS, Volumetric, Sugar, with two marks on neck, without stopper. 



Graduated at, cc 50 & 55 100 & 110 200.& 220 



Each .60 .70 .80 



5786. FLASK, Volumetric, Sugar, Bates' Form, pear shape with funnel top. Capacity, 100 cc. . .65 

 5788. FLASKS, Volumetric, Sugar, Kohlrausch Form, with enlarged mouth, and one mark on neck. 



Graduated at, cc 100 200 200.6 201.2 201.4 



Each 58 .60 .70 .75 .75 



5792. FLASKS, Volumetric, Gile's Form, glass stoppered, with bulb in neck and two marks. Used ex- 

 tensively for making normal solutions, as the 10 per cent, extra volume in the bulb may be used 

 for checking, leaving an exact volume for correction. 



Graduated at, ce 500 & 550 1000 & 1100 2000 & 2200 



Each 2.10 2.80 4.00 



5812. FLASKS, Volumetric, Precision or Normal, without stopper, graduated to meet the requirements 

 of the United States Bureau of Standards, with unofficial factory certificate. 



Graduated to contain, cc 50 100 250 500 1000 2000 



Each 90 1.10 1.50 1.90 2.40 3.00 



5814. FLASKS, Volumetric, Precision or Normal, same as No. 5812, but standardized by the United 

 States Bureau of Standards, with certificate. 



Graduated to contain, cc 50 100 250 500 1000 2000 



Each 1.55 1.85 2.50 3.15 4.30 5.00 



5818. FLASKS, Volumetric, Precision or Normal, same as No. 5812, but with glass stopper. 



Graduated to contain, cc 50 100 250 500 1000 2000 



Each 1.30 1.50 1.90 2.25 3.00 3.50 



5820. FLASKS, Volumetric, Precision or Normal, same as No. 5818, but standardized by the United 

 States Bureau of Standards, with certificate. 



Graduated to contain, cc 50 100 250 500 1000 2000 



Each 2.10 2.25 3.15 3.75 5.00 5.70 



FLASK HEATER, Electric Water Bath, see No. 14296 De Khotinsky Electrically Heated Water 



Bath. 



FLASK HEATER, Electric Hot Plate, see No. 7514 Heater, Combination Electric. 



5846. FLASK HEATERS, of sheet iron, with asbestos strips fastened to sides, and openings for ventila- 

 tion. 



Diameter, inches 4% 5 6 7% 8*4 10V 2 



Each.... 80 1.10 1.30 1.60 1.80 2.20 



FLASK HOLDER, Suberite, see Cork Rings, No. 3296. 



