Chemical observations on sugar / [Edward Rigby].

  • Rigby, Edward, 1747-1821
Date:
1788
Catalogue details

Licence: Public Domain Mark

Credit: Chemical observations on sugar / [Edward Rigby]. Source: Wellcome Collection.

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    made in the chemical inveftigation of its conftituent principles; the various accounts of the themical nature-of fugar,: given by different writers, being fufficient proofs of its true analyfis being unknown to them. fs By fome it has been defcribed as the na- tive falt of a vegetable, rendered inflam- mable by the mixture of a certain por- tion of oil.—By others it-has been called an effential falt, confifting of an acid united with a large-quantity of avery atte- nuated and mucilaginous earth, and with a certain quantitysdf fweet and ‘not vola- tile oils And by-others it has been: faid to be a native foap, confifting of /an oil ren- deted.mifcible with water by means ‘of a faline tabftamve. Frag THESE accounts are, obvioufly, too vague and indeterminate, not to fay unintelligible, to be admitted as chemical definitions, and ih appear, ee to have been de- rived