. Journal - American Medical Association. ical lines represent the number of cubic centime-ters of a N/x NaOII required to neutralize the 10 cubic centi-meters of decinormal acid solution. The horizontal lines rep-resent the number of cubic centimeters of this solution ofalkali required to neutralize 10 cubic centimeters of gastriccontents. On the diagonal, passing (actually or by interpola-tion) through the point at which these lines cross, may be readoff the acidity of the gastric contents, both methods of expres-sion being given. Examples: If 10 cubic centimeters are required to neutral-ize
. Journal - American Medical Association. ical lines represent the number of cubic centime-ters of a N/x NaOII required to neutralize the 10 cubic centi-meters of decinormal acid solution. The horizontal lines rep-resent the number of cubic centimeters of this solution ofalkali required to neutralize 10 cubic centimeters of gastriccontents. On the diagonal, passing (actually or by interpola-tion) through the point at which these lines cross, may be readoff the acidity of the gastric contents, both methods of expres-sion being given. Examples: If 10 cubic centimeters are required to neutral-ize the decinormal acid solution and 6 to neutralize the gastriccontents, follow the vertical line 10 down to the line 6. ^Vlierethese lines intersect a diagonal line may be found which ismarked 60 and This means that the acidity of the gas-tric contents is 60, or, expressed in terms of hydrochloric acid,contains gm. of acidity to each thousand cubic centimetersof gastric contents. iitralize 10 of a decinormal acid If but 6 cubic centimeters of the sodic hydrate solution arerequired to neutralize 10 of the acid and 8 of this alkalinesolution are required to neutralize 10 of the gastric contents,follow the vertical line 6 to the point where it is crossed bythe horizontal line 8. This brings one between the diagonals130 and 140, and about one-third of the distance from thelower to the upper diagonal. The acidity is about 133 or per mille. Should cubic centimeters of the N/x NaOH be requiredto neutralize 10 of the decinormal acid and cubic centime-ters of the former be required to neutralize the gastric con-tents, the result is 50 or gm. per mille. The accuracy of the diagram has been tested in a numberof ways, and the average error in its use seems to be too smallto be of any consequence. It is constructed for normal to 1/20normal sodic hydrate, and for acidities from 0 to 170—fromthe lowest free hydrochloric to the highest total a
Size: 1663px × 1502px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade188, booksubjectmedicine, bookyear1883
