Cov ntaub ntawv khoom ntiag tug
| CAS | 80-70-6 |
| Cov mis mos molecular | C5H13N3 |
|
Qhov tshwm sim |
Cov kua dej tsis muaj xim |
|
Qhov ntom |
918mg ib−1 |
|
Melting point |
−30 degree (-22 degree F; 243 K) |
|
Boiling point |
160 txog 162 degree (320 txog 324 degree F; 433 txog 435 K) |
|
Solubility hauv dej |
Miscible |
|
Vapor siab |
30 Pa (ntawm 20 degree) |
|
Acidity (pKa) |
13.0±1.0[1] (pKantawm conjugate acid hauv dej) |
Molecular Structuer
Khoom Description
Tetramethylguanidine yog ib qho organic compound nrog cov mis HNC (N (CH3) 2) 2. Cov kua tsis muaj xim no yog lub hauv paus muaj zog, raws li kev txiav txim siab los ntawm pKa siab ntawm nws conjugate acid.
Nws yog Ameslikas npaj los ntawm tetramethylthiourea ntawm S-methylation thiab amination, tab sis lwm txoj kev pib los ntawm cyanogen iodide.
Tetramethylguanidine feem ntau yog siv los ua qhov muaj zog, tsis yog-nucleophilic puag rau alkylations, feem ntau yog ib qho kev hloov rau DBU thiab DBN kim dua. Txij li nws yog dej-soluble heev, nws yooj yim tshem tawm los ntawm kev sib tov hauv cov kuab tshuaj organic. Nws kuj tseem siv los ua lub hauv paus-catalyst hauv kev tsim cov polyurethane.
Vim Li Cas Xaiv Peb
Koj tab tom yuav=Peb Cov Khoom + Peb Cov Kev Pabcuam
1. Zoo yog peb kab lis kev cai, peb muaj ntau tshaj 10 xyoo kev paub rau cov khoom.
2. Kev xa khoom sai thiab nyab xeeb nrog kev nyab xeeb thiab kev xa khoom tsis zoo.
3. Nrog peb, koj cov nyiaj muaj kev nyab xeeb zoo li koj lub lag luam. Nws yog peb cov lus cog tseg rau koj!
4.Txawm li cas los xij cov lus nug txog peb lossis peb cov khoom koj muaj, qhia rau peb paub thiab koj tuaj yeem paub tseeb tias peb teb koj cov ntsiab lus nrog 24 teev thiab txaus siab rau koj.
5. Zoo siab txais tos koj tuaj xyuas peb lub tuam txhab yog tias muaj.
Kev xa khoom
Tshuag
Cov khoom hauv Tshuag lossis tuaj yeem kho tau.
Kev xa khoom
Cov qauv xa tuaj hauv 7 hnub ua haujlwm.
Chaw thau khoom qhov chaw
Factory ntawm Shandong (Tuam Tshoj)
Kev xa khoom
EXW, FOB, CIF....
FAQ
Q1: Qhov kev them nyiaj twg muaj peev xwm rau koj lub tuam txhab?
Re: Txhawm rau ua kom peb txoj kev koom tes, muaj qee txoj kev them nyiaj rau koj xaiv. T / T (USD), West-erm union, Paypal, credit card, Alipay. Koj tuaj yeem xaiv qhov uas yooj yim rau koj.
Q2: Yuav ua li cas thiab thaum twg kuv tuaj yeem tau txais kuv cov khoom tom qab them nyiaj?
Re: Rau cov khoom me me, lawv yuav xa tuaj rau koj los ntawm kev xa khoom xa tuaj (DHL, FedEx, TIT, EMS, thiab lwm yam) lossis los ntawm huab cua. Feem ntau nws yuav raug nqi 2-7hnub uas koj tuaj yeem tau txais cov khoom tom qab xa khoom. Rau cov khoom loj, kev xa khoom zoo dua. Nws yuav raug nqi hnub rau lub lis piam kom tuaj rau koj qhov chaw nres nkoj, uas nyob ntawm qhov chaw nres nkoj.
Q3: Puas muaj peev xwm siv kuv daim ntawv teev npe lossis pob?
Re: Tseeb. Yog tias xav tau, peb xav siv daim ntawv lo lossis pob raws li koj xav tau.
Q4: Koj tuaj yeem lav qhov khoom koj muab tau li cas?
Re: Peb ib txwm ntseeg kev ncaj ncees thiab lub luag haujlwm yog lub hauv paus ntawm ib lub tuam txhab, yog li txhua yam khoom uas peb muab rau koj txhua tus muaj peev xwm ua tau zoo. Yog tias cov khoom tsis tuaj yeem tuaj rau qhov zoo peb tau cog lus, koj tuaj yeem thov kom rov qab tau
Xa koj cov lus nug kom paub meej ntxiv, Nyem "Xa" Tam sim no!
Cim npe nrov: Tuam Tshoj tetramethylguanidine manufacturers, lwm tus neeg, Hoobkas
