| Appearance: | white scaly or crystalline powder |
|---|---|
| Application: | Dyestuff Intermediates |
| Model Number: | W-D-I-2 |
| Brand Name: | WESCCO |
| Purity: | >=99.5% |
| Type: | Dyestuff Intermediates |
| Place of Origin: | China (Mainland) |
| EINECS No.: | 201-607-5 |
| MF: | C8H4O3 |
| Other Names: | 2,5-Isobenzofurandione; 2-benzofuran-1,3-dione |
| CAS No.: | 85-44-9 |
| Color: | white |
| FORM: | scaly or crystalline powder |
| Molecular Weight:: | 148.12 |
| Density:: | 1.484g/cm3 |
| Melting Point: | 129-132 |
| Boiling Point: | 589.218 at 760 mmHg |
| Flash Point: | 223.231 |
| refractive_index:: | 6 g/L (20 ) |
| phthalic anhydride: | 85-44-9 PURITY 99% phthalic anhydride |
Quick Details
Specifications
85-44-9 PURITY 99% phthalic anhydride
Product Description
|
Product Name: |
Phthalic anhydride |
|
Synonyms: |
2,5-Isobenzofurandione; 2-benzofuran-1,3-dione; 2,2'-(oxydicarbonyl)dibenzoic acid; o-Phthalic anhydride |
|
CAS RN.: |
85-44-9 |
|
EINECS: |
201-607-5 |
|
Molecular Weight: |
148.12 |
|
Molecular Formula: |
C8H4O3 |
|
Density: |
1.484g/cm3 |
|
Melting Point(℃): |
129-132℃ |
|
Boiling Point(℃): |
589.218°C at 760 mmHg |
|
Flash Point(℃): |
223.231°C |
|
refractive_index: |
1.646 |
|
Water Solubility: |
6 g/L (20℃) |
about phthalic anhydride
|
Item |
Index |
||
|
Top grade |
First grade |
Qualified product |
|
|
Appearance |
white scaly or crystalline powder |
white scaly or crystalline powder with slight colors |
|
|
molten Chroma(Chroma no. )≤ |
20 |
50 |
100 |
|
thermostable Chroma(Chroma no. )≤ |
50 |
150 |
- |
|
Chroma of vitriol(Chroma no. )≤ |
60 |
100 |
150 |
|
crystallization point°C≥ |
130.5 |
130.3 |
130.0 |
|
Purity(mass fraction)%≥ |
99.50 |
99.50 |
99.00 |
|
Free acid(mass fraction)≤ % |
0.20 |
0.30 |
0.50 |
|
Ash(mass fraction)%≤ |
0.05 |
- |
- |
Application:
1.Manufacturing plasticizer, resin, paint, medicine, dye intermediates.
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.
2.PA is the most important organic chemicals, one of the major derivatives are dibutyl phthalate, 2-ethylhexyl and two isobutyl, such as PVC plasticizers; Also used in the production of unsaturated polyester resins, alkyd resins, dyes and pigments, paints a variety of , food additives, pharmaceuticals cathartic relief of phenolphthalein, the imine pesticide parathion, Pentachlorophenol and noticeably so.
Packaging & Shipping
Trade information
Shipment term: EXW, FOB, CIF, CNF, DDP
Payment term: T/T, DP at sight, L/C, Western Union, Paypal, Escrow, MoneyGram
Delivery time: 5-7working days for inventory
Shipment mode: By sea, by air and by express
Company Information
is established in 2004, highly specialized in the field of fine chemical, pharmaceutical intermediates, agrochemical intermediates, dyestuff intermediates, etc. and focus on India and China chemical markets management. We build very good partnership with many leading chemical manufacturers in India and China, and provide high quality products to worldwide.
Quality is our sincerest respect offered to our customers all over the world, and it is the most important factor for us to win our customers' hearts and found the long-term business relationships with our customers.
Our Services
1. Supply high quality products with a reasonable price, inform regular customers the market information.
2. Arrange the orders and shipping with customer requests in time, According to the different countries export policy provide complete customs clearance documents.
3. We can guarantee the quality during quality avail period.
4. Provide a market price and supply trend, ensure the clients can know about marketing information in time.
5. 24hours reply after got clients' request.
FAQ
1, How about the validity of the products?
According to the products you ordered.
2. What documents you provide?
Usually, we provide Commercial Invoice, Packing List, Bill of loading, Certificate of Analysis, Country of Origin, Insurance form (if have). If your markets have any special requirements, let us know.
3. What is loading port?
Usually is Shanghai. Any special requested port, please check with us in advanced.