Notes on antimony tannate

Abstract

'{'HE next point of interest was to determine whether the method of titration as given in the preceding paper (this Journal, p, 196) was applicable to tannin-holding substances other than nut-galls and sumac, '{'he following tests were made for this purpose: TannIn, Per cent. Leaves of sweet-fern (Gomptonla asplenifolia) from near Boston, gathered the middle of .May _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7'56 The same, gathered on the Kennebec River, Maine, the last of J ul Y ___________ . ___________ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 8 '00 Sample of ground hemlock-bark from Vermont _ _ _ _ _ _ _ _ _ _ _ 7'07 Sample of catechu _______________ .. ___ . __ . ______ . _____ 29'70 Sample of kino ____________ . _______ . _______________ . __ 41'50 Crnshed quercitron bark. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7'00 Congo tea _________________________ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4'60 Cinchona flavor ______________ . _ . _________________ . _ . _ 9'60 Ground cloves ____ . ___ . _. _ . ___________ . _. _________ . _ _ 7'03 Chestnut-oak from Careyville, TenD, ___ . __________ . _ _ _ _ _ 3 '00