4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid, yomwe imatchedwanso nipagin ester, imagwiritsidwa ntchito makamaka mu msuzi wa soya, kupanikizana, zakumwa zotsitsimula, ndi zina zotero. Mphamvu ya anti-corrosion ndi yabwino kuposa benzoic acid ndi mchere wake wa sodium, womwe umagwiritsidwa ntchito pafupifupi 1/10 ya sodium benzoate ndi magwiritsidwe osiyanasiyana a pH 4-8.
| Kanthu | Kufotokozera |
| Malo otentha | 213.5 ° C (kuyerekeza molakwika) |
| Kuchulukana | 1,46g/cm3 |
| Malo osungunuka | 213-217 °C (kuyatsa) |
| Kuthamanga kwa nthunzi | 0Pa pa 20 ℃ |
| resistivity | 1.4600 (chiyerekezo) |
| Zosungirako | Sungani pansi +30 ° C. |
4-Hydroxybenzoic acid imagwiritsidwa ntchito makamaka ngati zopangira zopangira mankhwala abwino, pomwe ma parabens, omwe amadziwikanso kuti p-hydroxybenzoic acid esters, akhala akugwiritsidwa ntchito kwambiri ngati zoteteza muzakudya, zamankhwala, ndi zodzoladzola. Amagwiritsidwanso ntchito kwambiri popanga utoto wosiyanasiyana, fungicides, filimu yamitundu, ndi mitundu yosiyanasiyana yamafuta osungunuka. Polima yatsopano yolimbana ndi kutentha kwambiri kwa p-hydroxybenzoic acid polyester, yomwe ili ndi ntchito zambiri, imagwiritsidwanso ntchito ngati zida zoyambira.
Nthawi zambiri ankanyamula 25kg/ng'oma, komanso akhoza kuchita makonda phukusi.
4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid CAS 99-96-7
