phthalic acids การใช้

• Phthalic anhydride is a principal commercial form of phthalic acid.
• This colourless solid is an isomer of phthalic acid and terephthalic acid.
• Chromic acid oxidizes it to retene quinone, phthalic acid and acetic acid.
• It can be oxidised to phthalic acid.
• DINP is typically a mixture of chemical compounds consisting of various isononyl esters of phthalic acid.
• It is a mixture of compounds derived from the esterification of phthalic acid and isomeric decyl alcohols.
• The methyl ester of phthalic acid, it is a colorless liquid that is soluble in organic solvents.
• Typical polyols used are glycols such as ethylene glycol; acids used are phthalic acid and maleic acid.
• It is a phthalate and is the diester of phthalic acid and the 10-carbon branched-chain alcohol 2-propylheptanol.
• Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale.
• It forms white powder, colorless crystals, a colorless solution, and an ionic solid that is the monopotassium salt of phthalic acid.
• Chromic acid in glacial acetic acid solution oxidizes it to picene-quinone, picene-quinone carboxylic acid, and finally to phthalic acid.
• He found that oxidation of alizarin with nitric acid gave alizaric acid ( phthalic acid ) which on heating gave pyroalizaric acid ( phthalic anhydride ).
• Diisoheptyl phthalate is typically a mixture of chemical compounds consisting of various isoheptyl esters of phthalic acid with the chemical formula C 22 H 34 O 4.
• "' Phthalic anhydride "'is the organic compound with the formula C 6 H 4 ( CO ) 2 O . It is the anhydride of phthalic acid.
• Malm et al ., records the preparation of phthalic acid derivatives of ethyl-cellulose and cellulose acetate without the use of pyridine by substituting sodium acetate as catalyst and acetic acid as a reaction solvent.
• Examples include the Cannizzaro reaction, where approximately 50 % of the reactant aldehyde becomes the other oxidation state of the target, the Wittig reaction, where high-mass phosphorus reagents are used but ultimately become waste, and the Gabriel synthesis, which produces a stoichiometric quantity of phthalic acid
• There are three arene substitution isomers of benzenedicarboxylic acid ( C 6 H 4 ( COOH ) 2 ) & ndash; the " ortho " isomer phthalic acid, the " meta " isomer isophthalic acid, and the " para " isomer terephthalic acid:
• :A Google search for " phthalic acid and ethylene glycol " will give you the answer in the very first link . ( Since this has the appearance of a homework question, I am not going to supply it . ) talk ) 15 : 50, 25 May 2014 ( UTC)
• Hydrolysis of " N "-hydroxyphthalimide by the addition of strong bases produces phthalic acid monohydroxamic acid . " N "-hydroxyphthalimide ethers, on the other hand, are colorless and provide " O "-alkylhydroxylamines by alkaline hydrolysis or cleavage through hydrazine hydrate.