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| CAS No.: | 131-11-3 |
| Formula: | C10h10o4 |
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1. Basic Information
Chemical Name: Dimethyl Phthalate
Common Acronym: DMP
CAS Registry Number: 131-11-3
2. Key Characteristics
Appearance: Colorless to faint yellow, clear, oily liquid.
Odor: Characteristic mild, aromatic odor.
Density & Solubility: Slightly denser than water. Miscible with most organic solvents (alcohols, ethers), but has very low solubility in water.
Boiling Point: ~283-284 °C
| Item | Results |
| Chroma(Platinum Cobalt) | 10 |
| Purity % | 99.54 |
| Density (20ºC)g/cm3 | 0.9838 |
| Acidity (Phthalic acid meter) % | 0.0023 |
| Moisture content % | 0.011 |
| Flash point ºC | 210 |
| Volume resistivity 109Ω·m | 6.30 |
DMP is primarily a chemical intermediate and a specialty solvent/plasticizer, though its historical uses have declined.
Chemical Intermediate: A key starting material for synthesizing other chemicals, including pharmaceuticals, dyes, and pesticides.
Specialty Solvent/Plasticizer: Used in specific industrial applications (e.g., cellulose acetate plastics, molding powders, certain coatings) where its volatility or specific solvent properties are required. It has largely been replaced in mainstream plasticizer applications by higher molecular weight alternatives.
Historical Use as Insect Repellent: Was once widely used as a topical insect repellent against mosquitoes and other biting insects.
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