Meaʻai Kemika Meta-Xylene Maʻemaʻe Kiʻekiʻe

wehewehe pōkole:

ʻO Xylene (i kapa pinepine ʻia ʻo dimethylbenzene) kahi hydrocarbon ʻala koʻikoʻi i ka kemika ʻoihana. Me ʻekolu isomers (o-, m-, a me p-xylene), ʻo ka Xylene kalepa he hui paʻa maʻamau, e ʻike ʻia ana he wai ʻole kala, moakaka me kahi ʻala ʻala ʻokoʻa.

Hana mua kēia Xylene ma ke ʻano he mea hoʻoheheʻe hana kiʻekiʻe: hoʻoheheʻe ia i nā resins, nā rubbers, a me nā dyes no nā uhi, nā ʻīnika paʻi, a me ka hoʻomaʻemaʻe uila. Ma waho aʻe o ke kālā, lawelawe ʻo Xylene ma ke ʻano he feedstock koʻikoʻi—i hana ʻia i p-xylene (kahi mea mua no nā plastik PET) a me nā kemika maikaʻi no nā lole a me ka hoʻopili ʻana.

ʻO ka mea nui, he mea lapalapa ka Xylene, e pono ai ka ea kūpono i ka wā e lawelawe ai. ʻOiai me ia mau hana palekana, ʻo Xylene kekahi mea kumu e kākoʻo ana i nā kaulahao lako kemika a me nā mea hana hou.

E leka uila mai iā mākou

Nā kikoʻī huahana

Nā Lepili Huahana

Wehewehena

Mea	Nā Palena Kūikawā
Formula Molekala	C₈H₁₀
Kaumaha Molekala	106.17
Helu CAS.	1330-20-7 (hui ʻia); o-Xylene: 95-47-6; m-Xylene: 108-38-3; p-Xylene: 106-42-3
ʻAno a me ke ʻano	ʻO ka wai moakaka ʻole me kahi ʻala ʻala ʻano; ʻo ka papa ʻoihana he hui ʻana o nā o/m/p-isomers
Kiko Heheʻe	-47.9℃ (o-Xylene) / -47.4℃ (m-Xylene) / 13.3℃ (p-Xylene)
Kikowaena paila	144.4℃ (o-Xylene) / 139.1℃ (m-Xylene) / 138.4℃ (p-Xylene)
Ka nui o ka pilina (wai=1)	0.880 (o-Xylene, 20℃) / 0.864 (m-Xylene, 20℃) / 0.861 (p-Xylene, 20℃)
Ka nui o ka mahu pili (ea=1)	3.7 (huihui)
Kaomi mahu piha	1.3 kPa (25℃, m-Xylene); 0.8 kPa (25℃, p-Xylene)
Kikowaena Uila	25℃ (kīʻaha pani, hui ʻana)
Palena Pahū	1.0% ~ 7.0% (hapa nui, ea)
Ka hiki ke hoʻoheheʻe ʻia	ʻAʻole hoʻoheheʻe ʻia i ka wai; hui pū ʻia me ka ethanol, ether, acetone, benzene, a pēlā aku.
Mānoanoa	0.6 mPa·s (20℃, hui ʻana)
ʻIneki Refractive	1.495 (o-Xylene, 20℃) / 1.497 (m-Xylene, 20℃) / 1.496 (p-Xylene, 20℃)
Mahana Hoʻā ʻOno	464 ℃ (hui ʻia)
Ka Waiwai pH (1% hopena)	Kūlike ʻole (6.5~7.5)

ʻO Xylene (CAS 1330-20-7) kahi mea hoʻoheheʻe petrochemical koʻikoʻi a me ka mea hānai kemika, i haku ʻia me ʻekolu isomers (o-, m-, a me p-xylene) e hana ana i kahi wai paʻa, kala ʻole me kahi ʻala ʻala ʻokoʻa. Kaulana ʻia no kona mana solvency maikaʻi loa a me ka hoʻohālikelike ʻana o nā mea, hana ia ma ke ʻano he mea kumu versatile e hoʻokō ana i nā koi hoʻohuihui ʻoihana a me ka synthesis.

Hoʻohana nui ʻia ma nā ʻāpana honua, lawelawe nui ia ma ke ʻano he mea hoʻoheheʻe hana kiʻekiʻe no nā uhi ʻana, nā ʻīnika paʻi, a me ka hoʻomaʻemaʻe ʻana i nā ʻāpana uila; hana pū ia ma ke ʻano he mea hānai koʻikoʻi no ka hana ʻana i ka waikawa p-phthalic (kahi mea mua no nā plastik PET) a me nā kemika maikaʻi. Kākoʻo hou kēia mau mea derivatives i nā ʻoihana e like me ka hoʻopili ʻana, ka hana uhi kaʻa, ka hana ʻana i nā mea uila, ka hana ʻana i ka lole, a me ka hoʻonaninani hale.

Hāʻawi kā mākou huahana xylene i nā koho papa he nui (papa ʻoihana a me ka papa maʻemaʻe kiʻekiʻe) e kūlike me nā pono hana like ʻole, e hōʻike ana i ka kaohi maikaʻi koʻikoʻi e hōʻoia i ka haʻahaʻa o ka haumia a me ka solvency/stability mau. Hoʻohiki mākou i ka lako nui hilinaʻi, nā palapala waiwai weliweli piha (me ka MSDS a me ka palapala hōʻoia UN), a me nā hoʻonā logistics i hana kūikawā ʻia no ka lawe ʻana i ka wai lapalapa. Eia kekahi, hāʻawi kā mākou hui loea ʻoihana i ke kākoʻo pilikino—e like me ke alakaʻi ʻana i ke kūlana mālama a me nā ʻōlelo paipai kūlike o ka solvent—e hoʻomaikaʻi i kāu pono hana a me ka palekana hana.

Nā kikoʻī o Xylene

Mea	Nā kikoʻī
helehelena	Wai moakaka, ʻaʻohe mea haumia i hoʻokuʻu ʻia
Ka Chromaticity/Hazen(Pt-Co) ≤	20
Ka nui (20 ℃) / (kg / m )	860~870
Kikowaena Hoʻolapalapa Mua / ℃ ≥	137
Wahi maloʻo / ℃ ≤	143
Ka laulā Distillation holoʻokoʻa / ℃ ≤	5
Waihoʻoluʻu Holoi ʻakika, g/L	ʻAʻole ʻeleʻele ke kala ma mua o ka hopena maʻamau (0.5gK₂Cr₂O₇ i loko o 1000mL waikawa hoʻoheheʻe ʻia)
Ka nui o ka sulfur / (mg/kg) ≤	1
Koena Hoʻoheheʻe / (mg/100mL) ≤	5
Ka palaho keleawe	Palapala
Hoʻāʻo Kūlike ʻole	Kūlike ʻole
Koena mahu/(mg/100mL) ≤	3
Hoʻāʻo no ke kūlike ʻole	kūlike ʻole

Ka Hoʻopili ʻana o Xylene

I loko o ka pahu palaki ʻupena 180kg a i ʻole ka pahu IBC.

Ka Mālama ʻana: E mālama i loko o kahi hale waihona meaʻai anuanu, maloʻo, a me ka ea; E mālama pono ʻia mai nā mea hoʻoheheʻe ʻia (e laʻa, ka waikawa nitric, nā peroxides), nā waikawa ikaika, a me nā halogens. Mai hoʻohuihui a mālama pū paha.