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Description
Phthalic anhydride supplier and exporter from Mumbai and Fujairah.
Product Technical bulletin
Description :
Phthalic anhydride is a white crystalline solid that is the commercial form of phthalic acid. Phthalic anhydride is an important compound derived from the oxidation reaction of naphthalene. On the basis of application areas, the market of phthalic anhydride can be broadly segmented into plasticizers, unsaturated polyester resins, alkyd resins, and others. Plasticizer is the main phthalic anhydride application and serves an array of industries due to its various properties and performance advantages.
Empirical Formula …………..C8H4O3
Physical Molecular Weight .148.11
Application :
Phthalic Anhydride is used to produce polyester polyols for a variety of Polyurethane markets and to make polyester resins for reinforced plastics. This versatile chemical is also used in the manufacture of alkyd resins for paints and protective coatings. Phthalic Anhydride is reacted with alcohols to produce phthalate ester plasticizers for synthetic resins and plastics. Other uses for Phthalic Anhydride include the making of dye intermediates, pigments, engineering plastics, benzoic acid and phenolphthalein.
Technical Specification :
| Form | Solid |
| Colour | White |
| Odour | Characteristic |
| Odor Threshold | Not Applicable |
| pH | 2 at 6 g/l 20 °C |
| Melting Point | 131 °C (decomposition) |
| Boiling Point | 285°C |
| Flash Point | 152 °C Method: DIN 51758 |
| Evaporation Rate | Not Applicable |
| Flammability (solid, gas) | No Data Available |
| Lower Explosion limits | 1.7 %(V) |
| Upper explosion limit | 10.5 %(V) |
| Vapour pressure | < 0.01 hPa at 20 °C |
| Vapour Density | 6.6 |
| Specific Gravity | 1.527 g/cm³ at 20 °C |
| Partition coefficient | n-octanol/water log Pow: 2.07 (25 °C) (calculated) |
| Solubility | Soluble in water 6 g/l at 20 °C |
| Ignition temperature | 580 °C Method: DIN 51794 |
| Viscosity, dynamic | No information available |
| Handling |
Keep locked up.. Keep container dry. Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathe dust. Never add water to this product. In case of insufficient ventilation, wear suitable respiratory equipment. If ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes. Keep away from incompatibles such as oxidizing agents. |
| Storage |
Tightly closed. Dry. Keep in a well-ventilated place. Keep locked up or in an area accessible only to qualified or authorised persons. |
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