ʻAkika 4-Hydroxybenzoic CAS 99-96-7
ʻO ka 4-Hydroxybenzoic acid, i ʻike ʻia hoʻi ʻo nipagin ester, hoʻohana nui ʻia i ka soy sauce, jam, nā mea inu hōʻoluʻolu, a me nā mea ʻē aʻe. He pauka crystalline kala ʻole a i ʻole ka pauka crystalline keʻokeʻo, ʻala ʻole a ʻono ʻole. ʻOi aku ka hopena anti-corrosion ma mua o ka benzoic acid a me kona paʻakai sodium, me ka nui o ka hoʻohana ʻana ma kahi o 1/10 o ka sodium benzoate a me kahi pae hoʻohana o pH 4-8.
| Mea | Nā kikoʻī |
| Kikowaena paila | 213.5°C (manaʻo kikoʻī) |
| Ka nui o ka paʻa | 1,46 g/cm3 |
| Kiko heheʻe | 213-217 °C (mālamalama ʻia) |
| Kaomi mahu | 0Pa ma 20 ℃ |
| ke kū'ē ʻana | 1.4600 (kuhikuhi) |
| Nā kūlana mālama | E mālama ma lalo o +30°C. |
Hoʻohana nui ʻia ka waikawa 4-Hydroxybenzoic ma ke ʻano he mea maka kumu no nā huahana kemika maikaʻi, ʻoiai ʻo nā parabens, i ʻike ʻia hoʻi he p-hydroxybenzoic acid esters, ua hoʻohana nui ʻia ma ke ʻano he mea mālama i ka meaʻai, nā lāʻau lapaʻau, a me nā mea hoʻonani. Hoʻohana nui ʻia lākou i ka hoʻomākaukau ʻana i nā ʻano kala like ʻole, nā fungicides, nā kiʻiʻoniʻoni kala, a me nā mea hoʻohui kala like ʻole i hiki ke hoʻoheheʻe ʻia i ka ʻaila. ʻO ka polymer hou e kū ana i ka mahana kiʻekiʻe o ka wai, nona ka laulā o nā noi, hoʻohana ʻia hoʻi ma ke ʻano he mea maka kumu.
Hoʻopili pinepine ʻia i loko o 25kg / pahu, a hiki ke hana ʻia kahi pūʻolo i hoʻopilikino ʻia.
ʻAkika 4-Hydroxybenzoic CAS 99-96-7
ʻAkika 4-Hydroxybenzoic CAS 99-96-7
