Prix FOB
Obtenir le dernier prix1200 ~ 1800 / Metric Ton
|5 Metric Ton Minimum Order
Pays:
China
N ° de modèle:
-
Prix FOB:
1200 ~ 1800 / Metric Ton Obtenir le dernier prix
Localité:
-
Prix de commande minimale:
1200 per Metric Ton
Commande minimale:
5 Metric Ton
Packaging Detail:
-
Heure de livraison:
-
Capacité de Fournir:
30 Metric Ton per Day
Payment Type:
T/T, L/C, D/A, D/P, Western Union
Groupe de produits :
Personne àcontacter Ms. Carry
No. 03 Xiaoliuzhi Lane, suzhou, Jiangsu
Phthalic
Anhydride (Other
Names: Phthlandion Phthalicacidanhydride)Â
CAS
No.: ******9Â
MF:
C8H4O3Â
Purity:
*9.8%minÂ
Specification:Â
Phthalic
anhydride is the organic compound with the formula C8H4O3. This
anhydride of phthalic acid, a colourless solid, is an important
industrial chemical, especially for the large-scale production of
plasticizers for plastics. In ***2, approximately 4.6 billion
kilograms were producedÂ
Uses:
In industry and organic synthesisÂ
Phthalic
anhydride is a versatile intermediate in organic chemistry, in part
because it is bifunctional and cheaply available. It undergoes
hydrolysis and alcoholysis. Hydrolysis by hot water forms
ortho-phthalic acid. This process is reversible: Phthalic anhydride
re-forms upon heating the acid above **0 ° C.Â
Hydrolysis
of anhydrides is not typically a reversible process. However,
phthalic acid is easily dehydrated to form phthalic anhydride due
to the creation of a thermodynamically favorable *-membered
ring.Â
Organic
synthesisÂ
Phthalic
anhydride is a precursor to a variety of reagents useful in organic
synthesis. Important derivatives include phthalimide and its many
derivatives. Chiral alcohols form half-esters (see above), and
these derivatives are often resolvable because they form
diastereomeric salts with chiral amines such as brucine. A related
ring-opening reaction involves peroxides to give the useful peroxy
acid:Â
Precursor
to dyestuffsÂ
Phthalic
anhydride is widely used in industry for the production of certain
dyes. A well-known application of this reactivity is the
preparation of the anthroquinone dye quinizarin by reaction with
PARA-chlorophenol followed by hydrolysis of the
chloride.Â
Packaging:
Inside plastic film, outside polywoven bag
Â
Carry
| Pays: | China |
| N ° de modèle: | - |
| Prix FOB: | 1200 ~ 1800 / Metric Ton Obtenir le dernier prix |
| Localité: | - |
| Prix de commande minimale: | 1200 per Metric Ton |
| Commande minimale: | 5 Metric Ton |
| Packaging Detail: | - |
| Heure de livraison: | - |
| Capacité de Fournir: | 30 Metric Ton per Day |
| Payment Type: | T/T, L/C, D/A, D/P, Western Union |
| Groupe de produits : | Pigment & Paint |
