4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid, wanda aka fi sani da nipagin ester, ana amfani da shi ne a cikin soya sauce, jam, abubuwan sha masu sanyaya rai, da sauransu. Yana da lu'ulu'u marar launi ko fari crystalline, mara wari kuma maras dandano. Sakamakon anti-lalata ya fi benzoic acid da gishirin sodium, tare da adadin amfani da kusan 1/10 na sodium benzoate da kewayon amfani na pH 4-8.
| Abu | Ƙayyadaddun bayanai |
| Wurin tafasa | 213.5°C |
| Yawan yawa | 1.46 g/cm 3 |
| Wurin narkewa | 213-217 ° C (lit.) |
| Matsin tururi | 0 Pa da 20 ℃ |
| resistivity | 1.4600 (kimanta) |
| Yanayin ajiya | Adana a ƙasa + 30 ° C. |
4-Hydroxybenzoic acid yawanci ana amfani dashi azaman kayan masarufi don samfuran sinadarai masu kyau, yayin da parabens, wanda kuma aka sani da p-hydroxybenzoic acid esters, an yi amfani da su sosai azaman masu kiyayewa a abinci, magani, da kayan kwalliya. Har ila yau, ana amfani da su sosai a cikin shirye-shiryen dyes daban-daban, fungicides, fina-finai masu launi, da nau'o'in launi na mai mai narkewa. Sabuwar polyester p-hydroxybenzoic acid polyester mai juriya mai zafi mai zafi, wanda ke da aikace-aikacen da yawa, ana kuma amfani dashi azaman albarkatun ƙasa.
Yawancin lokaci cushe a 25kg / drum, kuma kuma za a iya yi musamman kunshin.
4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid CAS 99-96-7
