Cov khoom lag luam
Dimethyl sulfate yog tus tsis muaj xim lossis me ntsis dos ntsa iab hauv dej, yooj yim soluble hauv cov kuab tshuaj muaj zog xws li ethanol, ete, acetone. Nws cov tshuaj muaj zog yog nquag, yog qhov muaj zog methylation reagent, tab sis nws yog tshuaj lom thiab tsis txaus ntseeg, lub vapor yog muaj kev txob txob loj heev.
| Tus ntxhiab | Plaint, dos-zoo li |
| Ceev | 1.33 G \/ ml, kua |
| Melting taw tes | -32 Qib (-26 degree F; 241 k) |
| Kub taw tes | 188 degree (370 degree f; 461 k) (decomposes) |
|
Solubility hauv dej |
Sweacts |
| So | Methanol, Dichhloromethane, Acetone |
| Vapor siab | {{0 {}. 1 mmHg (20 degree) |
|
Sib Nqus Tau Zoo (χ) |
−62.2×10−6cm3mol |
Kev siv
- Cov khoom siv raw rau cov synthic synthesis: dimethyl sulfate tau siv dav hauv cov tshuaj, tshuaj tua kab, daim tawv nqaij thiab lwm yam kev ua yeeb yaj kiab zoo nkauj. Piv txwv li, hauv cov tshuaj synthesis, nws tuaj yeem hloov cov tshuaj molecules los ntawm methylation cov tshuaj tiv thaiv los txhim kho cov khoom siv tshuaj kho lossis txhim kho cov khoom siv tshuaj.
- Kev Lag Luam Kev Lag Luam: Nws yog siv nyob rau hauv synthesis ntawm qee cov txuj lom sib txuas nrog cov tsw tshwj xeeb.
- Roj Hmab Txuas Ntxiv: Dletethyl Sullfate koom rau hauv cov txheej txheem hluav taws xob, cov tshuaj ntxiv no tuaj yeem txhim kho cov roj hmab, kev tiv thaiv cov laus thiab lwm yam.
Tuam txhab tau
Cov Kev Pab Cuam Gnee:
1. Cov Qauv Siv.
2. Cov Packing tseem tuaj yeem ua raws li cov neeg siv khoom siv '.
3. Txhua yam kev nug yuav teb nyob hauv 24 teev.
4. Peb muab cov ntawv sau qhia ua ke, cov khoom ntim, daim nqi chaw thau khoom, COA, daim ntawv pov thawj kev noj qab haus huv thiab daim ntawv pov thawj kev noj qab haus huv. Yog tias koj lub khw muaj cov kev cai tshwj xeeb, qhia rau peb paub.
5. Hoobkas nqe.
6. Kev xa khoom sai. Peb muaj kev sib koom tes zoo nrog ntau tus kws tshaj lij rau cov neeg tshaj lij, peb tuaj yeem xa cov khoom rau koj thaum koj paub meej qhov kev txiav txim.
7. Peb tuaj yeem lees txais ntau txoj kev them nyiaj, L \/ C, T \/ A, D \/ P, O \/ A, PayPal thiab lwm yam kev txhaum.
Cov FAQ
Q: Thaum twg cov zaub mov xa tuaj?
A: Cov zaub mov xa tuaj yuav ua rau hauv 5-10 hnub tom qab tau txais cov kev them ua ntej. Hnub tim kawm tshwj xeeb yog txiav txim siab nyob hauv kev sab laj nrog tus qhua tuaj noj mov.
Q: Koj tus qauv los xyuas kom meej qhov zoo ntawm koj cov khoom?
A: Peb nruj ua raws li 6 kauj ruam rau kev tswj kom zoo, pib los ntawm raw khoom khoom yuav khoom tiav cov khoom tiav tawm hauv lub hoobkas.
Q: Yuav ntev npaum li cas rau kuv kom tau txais cov qauv?
A: Peb yuav xa cov qauv tsis pub dhau 3-5 hnub. Nyob ntawm koj nyiam, peb tuaj yeem xa khoom los ntawm ntau lub tuam txhab xa ntawv, xws li DHL, FedEx, UPS, thiab lwm yam. Tuaj txog hauv {1} {1} {1}} ua haujlwm hnub
Q: Koj txais cov txheej txheem them nqi dab tsi?
A: Peb lees txais 50% them ua ntej lossis 100% them rau pom, lossis lwm txoj kev them nyiaj, yuav tsum sib tham.
Q: Qhov kev txiav txim yam tsawg kawg nkaus?
A: Feem ntau qhov kev txiav txim yam tsawg kawg nkaus yog 1kg, uas tuaj yeem siv ua qauv. MOQ rau cov tshuaj dav dav yog 100kg. MOQ rau cov khoom phom tshwj xeeb tshwj xeeb yog 20 grams.
Cim npe nrov: Muaj yeeb yuj oily oily ua kua cov organic dimethyl sullate ua li {}} Arteth ua kua dimethyl sullate cas {1}} Cov chaw tsim khoom, cov chaw tsim khoom, Hoobkas