You get a polymer! When you have ethylene glycol react with phtalic anhydride in a basic sollution such as NaOH(aq) you'll get a linear polymer. When you have glycerol react with phtalic anhydride in the same way you'll get a crosslinked polymer. The important difference between glycerol and ethylene glycol is the amount of OH groups, and as we all know, the OH groups usually the group that reacts - particularly in the creation of polymers. So in this case your crosslinked polymer will be the glycerol as it has 3 OH groups. One in each end, allowing the molycule to connect with other molecules and create polymers, and one in the middle (connected to the 2nd Carbon Atom) allowing it to react with other polymers. I hope that sort of answers your question
anhydride is polar acceptor
Phthalic anhydride is slightly soluble in methanol. But beware! In this case, phthalic anhydride will actually react with its solvent. This is called estrification of the anhydride. Methanol will break the ring of Phthalic anhydride and make an ester. C6H4(CO)2O + CH3OH --> C6H4(CO2H)(CO2CH3) Similarly, you might THINK Phthalic anhydride is soluble in water, but it actually reacts with water to make phthalic acid. If you want to make a true solution of phthalic anhydride, I would recommend acetone, or methylethyl ketone.
to convert the phthalic anhydride in to phthalimide, it is heated with urea at the temp. of 160 c with out using any solvent. phthalic anhydride + urea = phthalimide +water+ carbondioxide
Phthalic acid will dissolve 18g of per 100mL of boiling water. (25g/18g) x 100mL = 138.89mL of boiling water is needed to dissolve 25g of phthalic acid.
180g/L in hot water
anhydride is polar acceptor
Phthalic anhydride is slightly soluble in methanol. But beware! In this case, phthalic anhydride will actually react with its solvent. This is called estrification of the anhydride. Methanol will break the ring of Phthalic anhydride and make an ester. C6H4(CO)2O + CH3OH --> C6H4(CO2H)(CO2CH3) Similarly, you might THINK Phthalic anhydride is soluble in water, but it actually reacts with water to make phthalic acid. If you want to make a true solution of phthalic anhydride, I would recommend acetone, or methylethyl ketone.
to convert the phthalic anhydride in to phthalimide, it is heated with urea at the temp. of 160 c with out using any solvent. phthalic anhydride + urea = phthalimide +water+ carbondioxide
It use to reduce the part of phthalic anhydride
a paint binder or paint vehicle made by reacting coconut oil with a polyhydric alcohol such as pentaerythritol or glycerol and then reacting the resulting mixture of monoesters with phthalic anhydride
Zinc chloride and an acid must be present, preferably HCl
Para-phthalic acid" is not a commonly recognized chemical compound or term. It seems like there might be a misunderstanding or a typographical error in the name you're referring to. If you have a different chemical or substance in mind, please provide the correct name, and I'd be happy to provide information about it
Walter Albert Lawrance has written: 'Friedel and Craft's reaction-some substituted phthalic anhydrides with toluene and aluminium chloride' -- subject(s): Chemical reactions 'The reaction of substituted phthalic anhydrides with aluminum chloride and benzene' -- subject(s): Benzene, Aluminum chloride, Phthalic anhydride
Reaction product of reacting acid with alcohol to give an ester this is called polyester, saturated polyester is reaction product of saturated acid " may be aromatic dibasic acids like phthalic anhydride, isophthalic acid, terephthalic acid,etc.... or aliphatic aicds like adipic, sebacicl,....etc." with alcohol like " glycerol, pentaerythritol, trimethylol propane, neopentyl glycol, etc......." . Reaction product of reacting acid with alcohol to give an ester this is called polyester, saturated polyester is reaction product of saturated acid " may be aromatic dibasic acids like phthalic anhydride, isophthalic acid, terephthalic acid,etc.... or aliphatic aicds like adipic, sebacicl,....etc." with alcohol like " glycerol, pentaerythritol, trimethylol propane, neopentyl glycol, etc......." .
we can prepare phenol phtahaline in lap from; 1-salicylic acid by: part of salysilic acid pw+phthalic anhydride+c.h2so4(heat&fusion) ـ<ــــــــــــــــــــــــــthen cool&pour in 10%NaOH.............>PINK COLOR... or: 2-by phenol... by the same method... 3-or by resorcinol by the same method...
Reaction product of reacting acid with alcohol to give an ester this is called polyester, saturated polyester is reaction product of saturated acid " may be aromatic dibasic acids like phthalic anhydride, isophthalic acid, terephthalic acid,etc.... or aliphatic aicds like adipic, sebacicl,....etc." with alcohol like " glycerol, pentaerythritol, trimethylol propane, neopentyl glycol, etc......." . Reaction product of reacting acid with alcohol to give an ester this is called polyester, saturated polyester is reaction product of saturated acid " may be aromatic dibasic acids like phthalic anhydride, isophthalic acid, terephthalic acid,etc.... or aliphatic aicds like adipic, sebacicl,....etc." with alcohol like " glycerol, pentaerythritol, trimethylol propane, neopentyl glycol, etc......." .
vanadium pentoxide is used as an in oxidation catalysts to produce chemicals like sulfuric acid, maleic anhydride, phthalic anhydride and others. it is also used in catalsyts for pollution control applications (DeNOx and DeSOx catalysts for removing nitrogen oxides and suflur dioxide from flue gases in power stations and industrial plants). Vanadium pentoxide is also used in ceramic frits as a fluxing agent and pigment as well as UV absorbing glasses. Vanadium pentoxide can be converted into ferrovaandium alloy for use in high strength low alloy steels, tool steels and high speed steels. it can also be converted into vanadium-aluminum alloys used in the production of titanium alloys for aerospace, industrial and recreational applications.