1-1000 Kilograms
$20.00
≥1001 Kilograms
$1.00
| Phthalic anhydride is a common laboratory chemical, Pthalic anhydride has been shown to be esterified with primary alcohols at room temperature. Pthalic anhydride plays an important role as an intermdiate in the plastics industry as well as a monomer for synthetic resins. It is also a precursor ot many dyes such as phthalein, phtalocyanine, rhodamine, fluorescein, and xanthene. Phthalic anhydride has also been used in the synthesis of primary amines. |
| Item | Index of Phthalic Anhydride | ||
| 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 | - | - |
PAC is mainly used as the flocculating agent for the treatment of dringking water and industrial wastewater(such as oily wastewater, printing and dyeing water and pulping wastewater), and it is also applied in the treatment of high toxicity heavy metal and F-containing wastewater.
| Application | 1.It is used as organic solvent, spray paint artificial leather and spices such as raw materials. | |||||
| 2.It is used as flavouring agent. | ||||||
| 3.It is used as standard substances and solvent for chromatographic analysis . | ||||||
| 4.It is used for synthesis of perfume. | ||||||
| 5.It is used for separation of lithium chloride from alkali metal chloride. | ||||||
| 6.It is used in paint coating. | ||||||
| 7.It is used for oil extraction agent. | ||||||
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