4-Hydroxybenzoic acid CAS 99-96-7
Aashitada 4-Hydroxybenzoic, oo sidoo kale loo yaqaan nipagin ester, waxaa inta badan loo isticmaalaa maraqa soy, macaanka, cabitaannada cusboonaysiinta, iwm. Waa budo crystalline ah oo aan midab lahayn ama budo crystalline cad, oo aan ur lahayn oo aan dhadhan lahayn. Saamaynta ka-hortagga daxalka ayaa ka sarreysa aashitada benzoic iyo milixda soodhiyamkeeda, iyadoo leh xaddi isticmaal oo ah qiyaastii 1/10 oo ah sodium benzoate iyo kala duwanaanshaha isticmaalka ee pH 4-8.
| Shay | Faahfaahinta |
| Barta karkarinta | 213.5°C (qiyaasta qallafsan) |
| Cufnaanta | 1.46 g/cm3 |
| Barta dhalaalaysa | 213-217 °C (iftiin) |
| Cadaadiska uumiga | 0Pa at 20℃ |
| iska caabin | 1.4600 (qiyaas) |
| Xaaladaha kaydinta | Ku kaydi meel ka hooseysa +30°C. |
4-Hydroxybenzoic acid waxaa inta badan loo isticmaalaa walxo ceeriin ah oo aasaasi ah oo loogu talagalay alaabada kiimikada ee fiican, halka parabens, oo sidoo kale loo yaqaan esters-ka p-hydroxybenzoic acid, si weyn loogu isticmaalay sidii ilaaliyeyaal cuntada, daawada, iyo qurxinta. Waxaa sidoo kale si weyn loogu isticmaalaa diyaarinta midabyo kala duwan, fungicides, filim midab leh, iyo isku-xidhka midabyada kala duwan ee saliidda milma. Polyester-ka cusub ee polymer-ka p-hydroxybenzoic acid ee u adkaysta heerkulka sare, kaas oo leh codsiyo kala duwan, ayaa sidoo kale loo isticmaalaa walxo ceeriin ah oo aasaasi ah.
Badanaa waxaa lagu buuxiyaa 25kg/durbaan, waxaana sidoo kale lagu samayn karaa xirmo gaar ah.
4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid CAS 99-96-7
