P-methylbenzoic acid is white or light yellow crystalline powder, soluble in methanol, ether, difficult to dissolve in hot water, can volatilize with water vapor; Melting point 182℃. Boiling point 275℃ (sublimation).
Nature:
- Appearance: 4-methylbenzoic acid is white crystal.
- Solubility: soluble in alcohol, ether and ketone solvents, slightly soluble in water.
- Stability: Relatively stable, but may react when encountering strong oxidants and reducing agents.
1. P-methylbenzoic acid can be used for the determination of thorium, separation of calcium and strontium, mainly used in the manufacture of hemostatic aryl acid, p-methyl nitrile, p-toluenyl chloride, photosensitive materials, etc., used in organic synthesis intermediates, pesticide industry to produce fungicide phosphamide.
2. The oxidized phthalic acid can be used as an intermediate of medicine, photosensitive materials, pesticides and organic pigments. Mainly used in the manufacture of hemostatic aromatic acid, p-methyl nitrile, p-toluene formyl chloride, photosensitive materials, etc.
3.- Photosensitizer: can be used in photosensitive materials and photographic products.
Anyị nwere ọtụtụ ụlọ ọrụ dị elu nke nwere nkwado miri emi, nke nwere ike inye gị ngwaahịa dị elu na ọnụ ahịa asọmpi. Anyị nwekwara ike inye ego maka nnukwu ịzụrụ ihe. Anyị na-akwado ọtụtụ ụlọ ọrụ na-ebuga ibu ndị ọkachamara, nwere ike ịnapụta ngwaahịa n'enweghị nsogbu na aka gị. Oge nnyefe bụ ihe dịka ụbọchị 3-20 mgbe nkwenye nke ịkwụ ụgwọ gasịrị.
Molecular Formula | C8H8O2 |
Molar Mass | 136.15 |
Density | 1,06 g/cm3 |
Ebe Na-agbaze | 177-180 °C (lit.) |
Boling Point | 274-275 °C (lit.) |
Flash Point | 181°C |
Solubility | 0.3g/l |
Vapor Presure | 0.02 hPa (70 °C) |
Ọdịdị | White crystal |
Color | White to slightly yellow-cream |
Merck | 14,9535 |
BRN | 507600 |
pKa | 4.36(at 25℃) |
PH | 3.73(1 mM solution);3.2(10 mM solution);2.69(100 mM solution) |
Storage Condition | Store below +30°C. |
Nkwụsi ike | Stable. Incompatible with strong oxidizing agents, strong bases. |
Sensitive | Easily absorbing moisture |
Refractive Index | 1.5120 (estimate) |
MDL | MFCD00002565 |
Physical and Chemical Properties | Character white crystals. melting point 182 ℃ boiling point 275 ℃ solubility soluble in methanol, ethanol, ether, insoluble in hot water. |
Jiri | Mainly used in the manufacture of hemostatic aromatic acid, methyl nitrile, methyl benzoyl chloride, photosensitive materials |
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