An Introduction to Chemical Science

by Rufus P. Williams

Additional Compounds, for Examination:

Copper acetate, Lead carbonate,
Copper arsenite, Red lead,
Copper nitrate, Magnesia alba,
Copper sulphate, Smalt,
Lead dioxide, Vermilion.
Lead protoxide,

TABLE OF SOLUTIONS.

Number of grams of solids to be dissolved in 500cc of water.

AgNO3……… 25 K2Al2(SO4)4…… 50
BaCl2……… 50 KBr…. 25
Ba(N0 3)2…….. 30 K2Cr207…….. 50
CaClz……… 60 KI………. 25
Ca(OH)2…… saturated KOH……. 60
CaS04……. saturated NaICOS…….. 50
CUC12 50 NaOH 60
Cu(N03)……… 50 NalSl03……. saturated
FeS04……… 50 NH,N03…….. 50
HgC12……… 30 Pb(C2H302)2…… 50
HgN03….. 25 + 25 HN03 Pb(NOs)2……. . 50

Other solutions….saturated.

Indigo solution (sulphindigotic acid) is prepared by heating for several hours over a water bath, a mixture of ten parts of H 2SO4 with one of indigo, and, after letting it stand twenty-four hours, adding twenty parts of water and filtering.

TEXTBOOK ADVERTISEMENTS THAT APPEARED IN THE ORIGINAL EDITION

INTRODUCTION TO CHEMICAL SCIENCE

By R.P. WILLIAMS, Instructor in Chemistry in the English High School, Boston. l2mo. Cloth. 216 pages. By mail, 90 cents; for introduction, 80 cents.