离岸价格
Get Latest Price1200 ~ 1800 / Metric Ton
|5 Metric Ton Minimum Order
国:
China
モデル番号:
-
离岸价格:
1200 ~ 1800 / Metric Ton Get Latest Price
ロケーション:
-
最低注文量の価格:
1200 per Metric Ton
最低注文量:
5 Metric Ton
パッケージの詳細:
-
納期:
-
供給能力:
30 Metric Ton per Day
支払いタイプ:
T/T, L/C, D/A, D/P, Western Union
製品グループ :
連絡先担当者 Ms. Carry
No. 03 Xiaoliuzhi Lane, suzhou, Jiangsu
Phthalic
Anhydride (Other
Names: Phthlandion Phthalicacidanhydride)
CAS
No.: ******9
MF:
C8H4O3
Purity:
*9.8%min
Specification:
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 produced
Uses:
In industry and organic synthesis
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.
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.
Organic
synthesis
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:
Precursor
to dyestuffs
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.
Packaging:
Inside plastic film, outside polywoven bag
Carry
国: | China |
モデル番号: | - |
离岸价格: | 1200 ~ 1800 / Metric Ton Get Latest Price |
ロケーション: | - |
最低注文量の価格: | 1200 per Metric Ton |
最低注文量: | 5 Metric Ton |
パッケージの詳細: | - |
納期: | - |
供給能力: | 30 Metric Ton per Day |
支払いタイプ: | T/T, L/C, D/A, D/P, Western Union |
製品グループ : | Pigment & Paint |