phthalic anhydride
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Category：Paint chemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
85-44-9
C8H4O3
Applications:
Phthalic anhydride is primarily a chemical intermediate used in the manufacture of:
1. phthalate plasticizers
2. unsaturated polyester resins (UPR)
3. alkyd resins for paints and varnishes
4. polyester polyols
5. allyl resins
6. Pigments and dyes
7. Pesticide chemicals
Names and Identifiers
| Name | Phthalic anhydride |
| Synonyms | AKOS BBS-00004337 anhydridephtalique Phthalic anhydride Anhydride phtalique o-Phthalic anhydride 2-Benzofuran-1,3-dione 2,5-Isobenzofurandione 2-benzofuran-1,3-dione Anhydrid kyseliny ftalove anhydridephtalique(french) anhydridephtalique(etatvitreux) 1,2-Benzenedicarboxylic Anhydride 2,2′-(oxydicarbonyl)dibenzoic acid |
| CAS | 85-44-9 |
| EINECS | 201-607-5 |
| InChI | InChI=1/C16H10O7/c17-13(18)9-5-1-3-7-11(9)15(21)23-16(22)12-8-4-2-6-10(12)14(19)20/h1-8H,(H,17,18)(H,19,20) |
Physico-chemical Properties
| Molecular Formula | C8H4O3 |
| Molar Mass | 148.12 |
| Density | 1,53 g/cm3 |
| Melting Point | 131-134°C(lit.) |
| Boling Point | 284°C(lit.) |
| Flash Point | 152 °C |
| Water Solubility | 6 g/L (20 ºC) |
| Solubility | 6g/l (slow decomposition) |
| Vapor Presure | <0.01 mm Hg ( 20 °C) |
| Vapor Density | 5.1 (vs air) |
| Appearance | Flaky Crystals |
| Color | White |
| Odor | Characteristic choking odor |
| Exposure Limit | NIOSH REL: TWA 6 mg/m3 (1 ppm), IDLH 60 mg/m3; OSHA PEL: TWA 12mg/m3 (2 ppm); ACGIH TLV: TWA 1 ppm (adopted). |
| Merck | 14,7372 |
| BRN | 118515 |
| PH | 2 (6g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, strong bases, moisture, strong acids. Dust may form an explosive mixture with air. |
| Sensitive | Moisture Sensitive |
| Explosive Limit | 1.7-10.5%(V) |
| Refractive Index | 1.4500 (estimate) |
| Physical and Chemical Properties | Character White needle-like crystals, with a slight odor. melting point 131.6 ℃ boiling point 295 ℃ relative density 1.527 flash point 151.7 ℃ solubility slightly soluble in hot water and ether, soluble in ethanol, benzene and pyridine. |
| Use | Used as analytical reagents, but also for organic synthesis |
Risk and Safety
| Hazard Symbols | Xn – Harmful |
| Risk Codes | R22 – Harmful if swallowed R37/38 – Irritating to respiratory system and skin. R41 – Risk of serious damage to eyes R42/43 – May cause sensitization by inhalation and skin contact. |
| Safety Description | S23 – Do not breathe vapour. S24/25 – Avoid contact with skin and eyes. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 – Wear suitable gloves and eye/face protection S46 – If swallowed, seek medical advice immediately and show this container or label. S22 – Do not breathe dust. |
| UN IDs | 2214 |
| WGK Germany | 1 |
| RTECS | TI3150000 |
| FLUKA BRAND F CODES | 10-21 |
| TSCA | Yes |
| HS Code | 29173500 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 1530 mg/kg LD50 dermal Rabbit > 3160 mg/kg |
Upstream Downstream Industry
| Raw Materials | o-Xylene o-Xylene Naphthalene |
| Downstream Products | 4-Hydroxy-4-methyl-2-pentanone Butyl ether Anthraquinone Tetrachlorophthalic anhydride Tetrabromophthalic anhydride 1,4-Dihydroxyanthraquinone 2-Benzoylbenzoic acid Phthalimide N-(Hydroxymethyl)phthalimide Benzanthrone 2-Ethylanthraquinone Diallyl Phthalate |
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