diacid


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diacid

[dī′as·əd]
(chemistry)
An acid that has two acidic hydrogen atoms; an example is oxalic acid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Bis-alkyne monomers on the basis of diacid chlorides were synthesized according to scheme depicted in Figure 1 (Z = COCl, X = O).
IDeg is an insulin analog in which threonine has been removed at position B30 and position B29 has been acetylated with a 16-carbon fatty diacid with a glutamic acid spacer.
The first product produced at VerdePalm will be dodecanedioic acid, a 12-carbon diacid that is a component of many consumer products presently made from petroleum.
Nef has conserved sequences such as dileucine motifs (ExxxLL) and carboxy terminal diacid residues (EDAA) that allow it to interact with endocytic machinery, particularly AP1 and AP2 proteins [37, 60, 61].
Biochar samples were extracted by the diacid method (nitric acid-perchloric acid) (Amacher 1996) for analysing heavy metals.
The P and k in plant sample were analyzed after digestion with diacid (HN[O.sub.3]: HCl[O.sub.4]) digest was estimated by vanadomolybdate phosphoric acid yellow color method (jackson 1973) using spectrophotometer.
For estimation of Fe, Zn, Cu and Mn content in fodder, 0.5 gram of grounded teosinte sample was digested using diacid mixture (HNO3: HClO4 in ratio 4: 1) as per method given by Page et al.
Samples were prepared and digested in diacid (HN[O.sub.3] and HCl[O.sub.3]) and measured for concentration of Selenium using Inductively Coupled Argon Plasma Atomic Emission Spectroscopy (ICPAES).
(8) The most common polyol for alkyd resins is glycerol, and the most common diacid component is phthalic anhydride.
And Elevance Renewable Sciences recently announced that it has developed TPUs based on polyester polyol building blocks from a renewable, plant-based source--Elevance Inherent C18 Diacid. The result is a new semi-crystalline class of TPUs that have potential in applications such as automotive brake liners and sports equipment.
Ground plant samples were digested in diacid (perchloric-nitric acid 2:1 ratio) mixture (Rhoades, 1982) to estimate Na and K by atomic absorption spectrophotometer (Perkin-Elmer, 4000).