ʻO Dimethyl disulfide / DMDS CAS624-92-0
kikoʻī
| Mea | Nā kikoʻī |
| helehelena | wai |
| Waihoʻoluʻu | Melemele māmā |
| ʻAla | Me ke ʻala o nā mea kanu i loaʻa ka sulfur, e like me nā ʻakaʻakai. |
| Paepae ʻAla | 0.0022ppm |
| palena pahū | 1.1-16.1%(V) |
| Ka hiki ke hoʻoheheʻe ʻia i ka wai | <0.1 g/100 mL ma 20 ºC |
| Ka palena hōʻike | ACGIH: TWA 0.5 ppm (ʻIli) |
| Paʻa mau o ka dielectric | 9.769999999999999996 |
| Kiko Heheʻe | -98 |
| Kikowaena paila | 110 |
| Kaomi mahu | 29 (25 kekelē Celsius) |
| Ka nui o ka paʻa | 0.8483g/cm3 (20 C) |
| Ka helu mahele | 1.77 |
| Ka Wela o ka Vaporization | 38.4 kJ/mol |
| Ka Hoʻohuihui ʻana o ka Māʻona | 37600 ppm (3.8%) ma 25 C (helu) |
| ʻIneki Refractive | 1.5248 (20 C) |
Hoʻohana
He hui kemika ʻo Dimethyl Disulfide (DMDS) me ke ʻano C2H6S2. He wai kala ʻole ia me kahi ʻala ikaika a ʻoluʻolu ʻole. Eia kekahi o kāna mau hoʻohana nui:
1. I ka ʻoihana ʻaila: Hoʻohana nui ʻia ka DMDS ma ke ʻano he mea hoʻohui i loaʻa ka sulfur i ka hoʻomaʻemaʻe ʻaila. Kōkua ia i ka hoʻomaikaʻi ʻana i ka pono o nā kaʻina hana desulfurization ma ka hana ʻana ma ke ʻano he kumu sulfur. Hiki iā ia ke hana me nā oxides metala ma luna o ka ʻili o nā mea hoʻoulu desulfurization, e hoʻonui ana i kā lākou hana a me ke kūpaʻa, a pēlā e hoʻomaikaʻi ai i ka wikiwiki o ka wehe ʻana o nā hui i loaʻa ka sulfur i nā huahana petroleum.
2. I loko o ka ʻoihana kemika: He mea maka koʻikoʻi ia no ka hana ʻana o nā hui like ʻole me ka sulfur organik. No ka laʻana, hiki ke hoʻohana ʻia e hoʻomākaukau i ka methanethiol, kahi i hoʻohana hou ʻia i ka hana ʻana o nā pesticides, nā lāʻau lapaʻau, a me nā kemika maikaʻi ʻē aʻe. Hiki ke hoʻohana ʻia ka DMDS i ka hana ʻana o kekahi mau hui heterocyclic me ka sulfur, nona nā noi koʻikoʻi ma ke kahua o ka hana organik.
3. Ma ke ʻano he mea hoʻoheheʻe wai: Ma muli o kona ʻawahia i nā pepeke a me nā microorganism, hiki ke hoʻohana ʻia ʻo DMDS ma ke ʻano he mea hoʻoheheʻe wai e kāohi i nā mea ʻino a me nā fungi i loko o nā palaoa i mālama ʻia, nā hale kūʻai, a me nā hale ʻōmaʻomaʻo. Hiki iā ia ke pepehi pono i nā ʻano mea ʻino a me nā fungi like ʻole, e kōkua ana i ka pale ʻana i nā huahana mahiʻai i mālama ʻia a pale i ka laha ʻana o nā maʻi.
4. Ma ke kahua o nā mea uila: Hoʻohana ʻia ka DMDS ma ka ʻoihana semiconductor no kekahi mau kaʻina hana e like me ka hoʻokaʻawale ʻana o ka mahu kemika (CVD). Hiki ke hoʻohana ʻia e waiho i nā ʻili lahilahi i loaʻa ka sulfur, nona nā noi i ka hana ʻana o nā mea uila e like me nā transistors a me nā sensor.
5. I loko o ke kemika analytical: Hiki ke hoʻohana ʻia ʻo DMDS ma ke ʻano he reagent derivatization i loko o ke kemika analytical. Hiki iā ia ke hana me kekahi mau hui hana i loko o nā hui organik e hana i nā derivatives me nā waiwai chromatographic a spectroscopic maikaʻi aʻe, e kōkua ana i ka hoʻokaʻawale ʻana a me ka ʻike ʻana i kēia mau hui. No ka laʻana, hiki ke hoʻohana ʻia i loko o ka nānā ʻana i nā waikawa momona a me nā hui organik ʻē aʻe e ka gas chromatography - mass spectrometry (GC - MS).
Mālama a me ka mālama ʻana
Ola papa: 24 mahina mai ka lā i hana ʻia ai i loko o ka pahu i wehe ʻole ʻia mua i mālama ʻia i kahi maloʻo a me kahi anuanu, mai ka lā pololei, ka wai.
Hale kūʻai ea, hoʻomaloʻo wela haʻahaʻa, hoʻokaʻawale ʻia mai nā mea hoʻomake a me nā waikawa.
