4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid, sidoo kale loo yaqaan nipagin ester, waxaa inta badan loo isticmaalaa suugo soy ah, macaanka, cabitaannada soo cusboonaysiinta, iwm. Waa crystalline aan midab lahayn ama budo crystalline cad, aan ur lahayn oo aan dhadhamin Saamaynta ka-hortagga daxalka ayaa ka sarreeya benzoic acid iyo milixdeeda sodium, oo leh qiyaasta isticmaalka qiyaastii 1/10 ee sodium benzoate iyo isticmaalka kala duwan ee pH 4-8.
| Shayga | Tilmaamid |
| 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 sida alaabta ceeriin aasaasiga ah ee alaabta kiimikada ganaax, halka parabens, oo sidoo kale loo yaqaan p-hydroxybenzoic acid esters, ayaa si weyn loo isticmaalo sida ilaalinta cuntada, daawooyinka, iyo isqurxin. Waxa kale oo si weyn loogu isticmaalaa diyaarinta midabyo kala duwan, fungicides, filim midab leh, iyo lammaaneyaal midabyo kala duwan oo saliid ah. Polyester p-hydroxybenzoic acid polyester-ka cusub ee u adkeysiga heerkulka sare leh, kaas oo leh codsiyo kala duwan, ayaa sidoo kale loo isticmaalaa sida alaabta ceeriin ee aasaasiga ah.
Caadi ahaan waxaa lagu buuxiyaa 25kg/durbaan, sidoo kale waxaa la samayn karaa xirmo habaysan.
4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid CAS 99-96-7
