glycinn.
/ˈɡlʌɪsɪn/, U.S. /ˈɡlaɪsən/ Photography.
A crystalline derivative of glycine, used as a developer; p-hydroxyphenylaminoacetic acid.
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developer1855
paraphenylenediamine1873
rodinal1892
glycin1893
amidol1894
Adurol1898
soup1929
acutance developer1961
1893 Brit. Jrnl. Photogr. 40 804 Glycin is a special developer for lantern plates.
1961 A. L. M. Sowerby Dict. Photogr. (ed. 19) 355 In buying glycin from a pharmacist, make sure he is not supplying glycine (aminoacetic acid) which..has no developing properties at all.
1963 D. H. O. John & G. T. J. Field Textbk. Photogr. Chem. v. 67 Glycin finds some use in fine-grain developers for negatives.
This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022).
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