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.
E tele a matou fale gaosi oloa maualuga ma le galulue faʻatasi, lea e mafai ona tuʻuina atu ia te oe oloa maualuga ma tau faʻatauvaʻa. Ma e mafai foi ona matou tuʻuina atu faʻaitiitiga mo faʻatauga tele.Ma matou te galulue faʻatasi ma le tele o kamupani faʻapolofesa felauaiga uta, e mafai ona tuʻuina atu oloa ma le saogalemu ma le sologa lelei i ou lima. Le taimi tu'uina atu e tusa ma le 3-20 aso talu ona fa'amaonia le totogiina.
Molecular Formula | C8H8O2 |
Molar Mass | 136.15 |
Density | 1,06 g/cm3 |
Lisi Lisi | 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) |
Fa'aaliga | 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. |
Maumau | 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. |
Fa'aoga | Mainly used in the manufacture of hemostatic aromatic acid, methyl nitrile, methyl benzoyl chloride, photosensitive materials |
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