4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid, nke a makwaara dị ka nipagin ester, bụ nke a na-ejikarị na soy sauce, jam, mmanya na-enye ume ọhụrụ, wdg. Ọ bụ kristal na-enweghị agba ma ọ bụ ntụ ntụ ọcha, enweghị isi na enweghị ụtọ. Mmetụta mgbochi corrosion dị elu karịa benzoic acid na nnu sodium ya, yana ọnụọgụ ojiji nke ihe dịka 1/10 nke sodium benzoate na oke ojiji nke pH 4-8.
| Ihe | Nkọwapụta |
| Ebe esi nri | 213.5C (atụmatụ siri ike) |
| Njupụta | 1,46 g/cm3 |
| Ebe mgbaze | 213-217 Celsius C (ọkụ) |
| Uzuoku mgbali | 0Pa na 20 ℃ |
| resistivity | 1.4600 (atụmatụ) |
| Ọnọdụ nchekwa | Chekwaa n'okpuru +30 Celsius. |
A na-ejikarị 4-Hydroxybenzoic acid mee ihe dị ka ihe bụ isi maka ngwaahịa kemịkal dị mma, ebe parabens, nke a makwaara dị ka p-hydroxybenzoic acid esters, ejirila ya mee ihe dị ka ihe nchekwa na nri, ọgwụ na ihe ịchọ mma. A na-ejikwa ha n'ọtụtụ ebe na nkwadebe nke dị iche iche e ji esiji ákwà, fungicides, agba ihe nkiri, na iche iche mmanụ soluble agba couplers. A na-ejikwa polymer p-hydroxybenzoic acid polyester na-eguzogide okpomọkụ ọhụrụ, nke nwere ọtụtụ ngwa ngwa, dịka ihe eji eme ihe.
A na-ebukarị ya na 25kg / drum, ma enwere ike ịme ngwugwu ahaziri.
4-Hydroxybenzoic acid CAS 99-96-7
4-Hydroxybenzoic acid CAS 99-96-7
