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4-Hydroxybenzoic acid(CAS#99-96-7)

Waiwai Kemika:

ʻĀpana Molekala C7H6O3
Molar Mass 138.12
ʻO ka mānoanoa 1,46 g/cm3
Lae hehee 214-217 ℃
Lae Boling 336.2°C ma 760 mmHg
Lae Flash 171.3°C
Hiki i ka wai 5 g/L (20 ℃)
Ka hoʻoheheʻe Hiki ke hoʻoheheʻe ʻia i loko o ka wai, chloroform, hiki ke hoʻoheheʻe ʻia i ka etera, acetone a me benzene, hiki ke hoʻoheheʻe ʻia i ka ethanol i kēlā me kēia ʻāpana, aneane hiki ʻole ke hoʻoheheʻe ʻia i ka carbon disulfide. E hoʻoheheʻe i 125 mau ʻāpana o ka wai anuanu.
ʻO ke ʻano o ka mahu 4.48E-05mmHg ma 25°C
Ka nana aku Keokeo a Beige Crystalline pauda
Kūlana Waihona 2-8 ℃
Pilikino Pilikino i ka malamalama
Hōʻike Hōʻike 1.4600 (manaʻo)
MDL MFCD00002547
Na Waiwai Kino a Kimia Nā waiwai o ka pauda keʻokeʻo Crystal, ʻono ʻole, ʻala ʻole, ʻono ke ʻike ke alelo
hiki ke hoʻoheheʻe ʻia i ka wai wela a me ka waiʻona, ether, acetone, micro-soluble i ka wai anuanu, benzene, hiki ʻole ke hoʻoheheʻe ʻia i ka carbon disulfide. Hoʻoheheʻe ʻia i loko o 125 mau ʻāpana o ka wai anuanu
Hoʻohana ʻO ka mea nui e like me nā kumu kumu o nā huahana kemika maikaʻi, nā parabens (parabens) e like me ka meaʻai, ka lāʻau lapaʻau a me nā mea hoʻonaninani preservatives, ua hoʻohana nui ʻia, ua hoʻohana nui ʻia i ka hoʻomākaukau ʻana i nā ʻano like ʻole, fungicides, kala kiʻiʻoniʻoni a me nā ʻano ʻaila- nā mea hoʻoheheʻe kala hiki ke hoʻoheheʻe ʻia, a me nā mea ʻē aʻe, me kahi ākea o nā noi o ka polymer kiʻekiʻe kiʻekiʻe kū'ē i ka polymer P-Hydroxybenzoic acid polyester pū kekahi ma ke ʻano he kumu kumu.

Huahana Huahana

Huahana Huahana

Nā hōʻailona pōʻino Xi – Hoʻohaunaele
Nā Code Risk R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili.
Ka wehewehe palekana S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka

 

 

4-Hydroxybenzoic acid(CAS #99-96-7) hoʻolauna
ʻO ka waika hydroxybenzoic, ka mea i kapa ʻia ʻo ka p-hydroxybenzoic acid, he mea hoʻohuihui.

ʻO kāna mau waiwai nui penei:

Nā waiwai kino: Hydroxybenzoic acid he aniani keʻokeʻo a melemele iki paha me kahi ʻala ʻala ʻokoʻa.

Nā waiwai kemika: Hiki ke hoʻoheheʻe ʻia ka waika Hydroxybenzoic i ka wai a hiki ke hoʻoheheʻe ʻia i loko o ka waiʻona. He ʻakika carboxylic ʻakika hiki ke hana i nā paʻakai me nā metala. Hiki iā ia ke hana pū me nā aldehydes a i ʻole nā ​​ketones, e hana i nā hopena condensation, a hana i nā pūhui etera.

ʻO ka hana hou: Hiki i ka waika hydroxybenzoic ke hoʻopau i ka hopena neutralization me ka alkali e hana i ka paʻakai benzoate. Hiki iā ia ke komo i ka hopena esterification ma lalo o ka catalysis acid e hana i ka ester p-hydroxybenzoate. ʻO ka waika Hydroxybenzoic kekahi mea waena o nā mea hoʻoponopono ulu.

Hoʻohana: Hiki ke hoʻohana ʻia ka waika Hydroxybenzoic e synthesize i nā mea hoʻoponopono ulu ulu, nā kala, nā mea ʻala, a me nā mea ʻē aʻe.


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