Cov khoom lag luam
Cov tshuaj nrog tus lej cas 2361 - 27 - 5 yog thiophene -2-} carbohydrrazide. Nws cov mis molecular yog c₅h₆n₂os, nrog txoj haujlwm hnyav molecular ntawm 142.18. Nws tus lej EC yog 219 - 107 - 0}, thiab MDL tus lej yog MFCD00005435.
In terms of physical and chemical properties, Thiophene{{0}}carbohydrazide is a light beige crystalline powder with white color. Nws melting point ranges los ntawm 136 txog 139 degree, thiab nws boils ntawm 260 degree nyob rau hauv lub siab ntawm 760 mmHg. Qhov ceev yog kwv yees li ntawm 1.3 ± 0.1 g / cmÃ, lub chaw ua haujlwm tshiab yog 1.615, thiab lub teeb nyem nyem yog 117.8 Degree. Ntxiv mus, nws PSA tus nqi yog 83.36000 thiab lub logp tus nqi yog}}}. 15.
Cov ntaub ntawv yooj yim
| IUpac npe | Thioophene -2-} carbohydrrazide |
| MDL tsis muaj | MFCD00005435 |
| Kev tshwm sim | Lub teeb heev |
| Ceev | 1.401g / cm3 |
| Bp | 260ºC ntawm 760MMHG |
| Tus mp | 136-139ºC |
| Fp | 117.8ºC |
| Refronction Index | 1.644 |
Cov Ntaub Ntawv Kev Nyab Xeeb
GHS kev faib tawm: daim tawv khaus (qeb 2), lub qhov muag khaus (qeb 2A), lub hom phiaj tshwj xeeb (qeb 3).
Cov lus qhia txaus ntshai: H315 ua rau daim tawv nqaij khaus, H319 ua rau muaj kev txob khaus, thiab H335 tuaj yeem ua pa ua pa.
Kev ceev faj: P261 tsis txhob nqus plua plav ntawm cov hmoov av / roj / V264 huv si kom huv si tom qab kev tiv thaiv cov hnab looj tes / p264 huv si
Kev Cia Yuav Tsum: Khaws lub thawv ntim thiab muab tso rau hauv cov thawv cia cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob sib cuag nrog oxidizing cov neeg sawv cev. Nws tuaj yeem khaws cia ntawm 2-8 degree.
Kev siv
Hauv kev thaj teb Organic synthesis, thiophene -2-} carbohyddrazes ua lub luag haujlwm tseem ceeb ua ib nrab. Piv txwv li, nws tuaj yeem hnov mob nrog Benzaldehyde txuas ntxiv rau synthesize cov acylhydrazone dioxolane {}}}}}}}} carbohydrazide yog ib qho ib txwm muaj. Ib qho ntxiv, nws koom nrog Paal-Knorr pyrrole nplhaib hws cov kev sib xyaw ua ke xws li thiophene thiab pyrrroole thiab pyrrroole thiab pyrrrole thiab pyrrroole, uas yog qhov tseem ceeb hauv cov teb ntsig.
Tuam txhab tau
Gnechem, nyob hauv Henan xeev, Suav teb, yog ib feem ntawm cov pab pawg Gnee, nrog 22 xyoo kev ua haujlwm zoo rau cov neeg siv khoom lag luam thoob ntiaj teb. Peb muab cov khoom siv raw tshuaj muaj kuab lom thiab tshuaj lom neeg tshwj xeeb rau ntau yam kev muaj peev xwm hauv tsev thiab txawv teb chaws, ua rau peb ib tus neeg ntseeg siab.
Cov FAQ
1. Kuv yuav tau txais tus nqi li cas?
-Peb feem ntau hais nyob rau hauv 24 teev ntawm tau txais koj qhov kev nug (tsis suav nrog hnub so thiab hnub so).
-Yog koj xav tau tus nqi hloov mus, thov hu rau peb txhais tau tias peb tuaj yeem hais lus rau koj.
2.What koj lub sijhawm khoom xa tuaj?
-It nyob ntawm tus naj npawb ntawm kev txiav txim thiab lub caij uas koj tso koj daim ntawv xaj.
-Usually, kev txiav txim tuaj yeem xa tawm tsis pub dhau 7-15 hnub rau cov xaj me thiab 25 hnub rau xaj loj.
3. Dab tsi yog tus qauv thauj khoom?
-Yog tuaj yeem nkoj los ntawm hiav txwv, huab cua, lossis nthuav qhia (EMS, UPS, DHL, TNT, FedEx, thiab lwm yam).
Cim npe nrov: CAS: 2361-27-5|Thioophere -2-} carbohydrrazide, Tuam Tshoj CAS: 2361-27-5|Thioophene -2- Carbohydrorazide Manufacturers, lwm tus neeg, Hoobkas
