Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Weak acids carboxylic

Carboxylic acids (RCOzH) and ammonium ions (R3NH ) are weak acids. Carboxylate anions (RC02) and amines (R3N) are weak bases. [Pg.111]

Weak acid Carboxylic acid w CH2CHCH2 a/vv 1 COOH... [Pg.863]

Thus the monodisperse polystyrene latex stabilized with strong-acid surface groups can be hydrolyzed to form a latex stabilized with the same number of nonionic hydroxyl groups, which in turn can be oxidized to form a latex stabilized with the same number of weak-acid carboxyl groups, thus offering model colloids with identical characteristics except for the type of chemically bound surface groups ---- strong-acid, weak-acid, non-... [Pg.80]

In recent years, a number of processes have been developed [35-37] for the ion exchainge recovery of Mg from seawater by applying weak-acid (carboxylic) ion exchangers. The following monofunctional carboxylic acid cation exchangers (methylmethacrylate-DVB type) were... [Pg.100]

It is equally interesting to compare the Ni ion distribution in ion exchanger VPC which is highly selective to Ni ions and in weak-acid carboxylic exchanger CB-4 with no selectivity for Ni ion (Fig. 11). It is evident that Ni concentration distribution depends on the type of exchange isotherm, rectangular for CB-4 resin and unfavorable for VPC resin. [Pg.185]

A bifunctional cation exchange resin carrying strongly acidic (sulfonic) and weakly acidic (carboxylic) groups was introduced in the mid-1960s but was to never merit a sustained commercial viability, and has since been discontinued. Undoubtedly, the acrylic and styrene copolymers with divinylbenzene form the basis of most commercially manufactured cation exchange resins available today. [Pg.28]

Dealkalization by ion exchange usually employs weakly acidic carboxylic acid resins operating on the hydrogen cycle. The high selectivity shown towards divalent calcium and magnesium over monovalent sodium results in the preferential exchange of calcium and magnesium ions (denoted thus ... [Pg.192]

Figure 8.6 A typical alkalinity leakage profile during dealkalization on a weak acid carboxylate cation exchanger... Figure 8.6 A typical alkalinity leakage profile during dealkalization on a weak acid carboxylate cation exchanger...
What does weakly acidic, carboxylic acid, 30-60 mesh, 4X, 3.6 meq/g min dry mean ... [Pg.276]

Weak acid Carboxylic acid Amberlite IRC 50 lonac CGC-270 Rexyn 102 Permutit H-70... [Pg.623]

Weakly acidic Carboxylic acid group RCOOH... [Pg.47]

Weak acid carboxyl group hydrogen ion form (C2)... [Pg.266]

The hydrolysis of acyloxy or alkoxy silanes is also practical. This reaction produces neutral alcohols or weakly acidic carboxylic acids as by-products, which do not cause a polymerisation of the silanols, however (Eqs. 3.83, 3.84) ... [Pg.45]

Since carboxylic acids are weak acids, carboxylates are relatively strong bases. Carboxylate salts react with hydronium ion to form the carboxylic acid. The carboxylic acid is insoluble in acid solution and therefore can be separated from the mixture. [Pg.671]

As weak acids, carboxylic acids ionize slightly by donating a hydrogen ion to water to form carboxylate and hydronium ions. [Pg.500]


See other pages where Weak acids carboxylic is mentioned: [Pg.205]    [Pg.104]    [Pg.239]    [Pg.83]    [Pg.192]    [Pg.185]    [Pg.190]    [Pg.14]    [Pg.513]    [Pg.714]    [Pg.143]    [Pg.244]    [Pg.41]    [Pg.273]    [Pg.208]    [Pg.142]    [Pg.81]    [Pg.236]    [Pg.53]    [Pg.161]    [Pg.593]    [Pg.331]    [Pg.11]    [Pg.363]    [Pg.21]    [Pg.35]    [Pg.130]    [Pg.254]   
See also in sourсe #XX -- [ Pg.1014 ]




SEARCH



Weak acids

Weakly acidic

© 2024 chempedia.info