سعر فوب
أحصل على آخر سعر1200 ~ 1800 / Metric Ton
|5 Metric Ton Minimum Order
بلد:
China
نموذج رقم:
-
سعر فوب:
1200 ~ 1800 / Metric Ton أحصل على آخر سعر
الموقع:
-
سعر الحد الأدنى للطلب:
1200 per Metric Ton
الحد الأدني للطلب:
5 Metric Ton
تفاصيل التغليف:
-
موعد التسليم:
-
القدرة على التوريد:
30 Metric Ton per Day
نوع الدفع:
T/T, L/C, D/A, D/P, Western Union
مجموعة المنتج :
الشخص الذي يمكن الاتصال به 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
بلد: | China |
نموذج رقم: | - |
سعر فوب: | 1200 ~ 1800 / Metric Ton أحصل على آخر سعر |
الموقع: | - |
سعر الحد الأدنى للطلب: | 1200 per Metric Ton |
الحد الأدني للطلب: | 5 Metric Ton |
تفاصيل التغليف: | - |
موعد التسليم: | - |
القدرة على التوريد: | 30 Metric Ton per Day |
نوع الدفع: | T/T, L/C, D/A, D/P, Western Union |
مجموعة المنتج : | Pigment & Paint |