Jual Thiourea
CAS Naj Npawb: 62-56-6
Lub cev lub cev: tsis muaj xim lossis dawb crystalline lossis crystalline hmoov
EINECS:200-543-5
Cov tshuaj formula: CH4N2S
Ntim: 25KG / hnab
Thiourea
Kev piav qhia ntawm jual thiourea:
Dawb los yog lub teeb daj glossy flake, columnar los yog koob zoo li tus muaju nrog ib tug iab saj. Soluble nyob rau hauv dej thiab ethanol, yuav luag insoluble nyob rau hauv ether.
Txoj kev tsim khoom ntawm jual thiourea:
Txoj kev npaj yog los ua cov tshuaj barium sulfide nrog sulfuric acid los yog hydrochloric acid, thiab cov roj hydrogen sulfide yog absorbed los ntawm qhov tsis zoo siab ntawm cov pob zeb tshauv emulsion kom tau txais cov tshuaj calcium hydrogen sulfide. Tom qab ntawd nws yog reacted nrog calcium cyanamide, thiab molar ratio ntawm calcium hydrogen sulfide rau calcium cyanamide yog 1:5. Nyob rau hauv tas li stirring, cov tshuaj tiv thaiv kub yog (80 ± 5) degree, thiab cov tshuaj tiv thaiv lub sij hawm yog 3 teev. Tom qab tau lim los ntawm cov tshuaj tsis zoo hauv phau ntawv siab, cov kua thiourea tuaj yeem tsim tawm, uas tom qab ntawd evaporated, lim, txias, thiab crystallized kom tau crystalline thiourea. Cov khoom tiav yog tau los ntawm centrifugal dehydration thiab ziab. Qhov sib npaug ntawm cov tshuaj tiv thaiv yog raws li nram no:
BaS+H2SO4 → BaSO4 ↓+H2S ↑
2H2S + Ca (OH) 2 → Ca (SH) 2+2H2O
|
Yam khoom |
SPECIFICATION |
| Purity (CH4N2S) | 99% min |
| Loss On Cua sov (H2O) |
0.4% max |
| Tshauv |
0.1% max |
| Dej-Insoluble Matter | 0.02% max |
| Rhodonide (raws li CNS) |
0.02% max |
| Melting Point | 171 degree min |
Jual thiourea siv:
Siv rau kev tsim sulfonamide, dyes, resins, compression molding hmoov, thiab lwm yam., kuj siv los ua vulcanization txhawb rau roj hmab, flotation tus neeg sawv cev rau hlau minerals, thiab lwm yam.,
Siv raws li kev tshuaj ntsuam reagents, complexation indicators, thiab chromatographic tsom xam reagents.
Siv los ua ib qho nruab nrab hauv kev tsim cov tshuaj hauv cov tshuaj. Siv ua vulcanization accelerator hauv kev lag luam roj hmab. Siv los ua tus neeg sawv cev flotation hauv kev lag luam mining. Nws kuj yog siv los ua cov ntaub thiab cov ntawv ua tus neeg sawv cev, nrog rau kev pab luam ntawv thiab dyeing. Kev Siv: Thiourea yog ib qho nruab nrab ntawm cov tshuaj tua kab mob, tshuaj tua kab mob xws li glyphosate thiab terbutamol, nrog rau cov khoom siv raw rau tshuaj sulfur chemothiazole. Nws kuj tseem tuaj yeem siv los ua cov khoom siv raw rau dyes, resins, thiab compression molding hmoov, nrog rau kev txhawb nqa vulcanization rau roj hmab thiab flotation tus neeg sawv cev rau cov hlau ntxhia. Kev Siv: Cov khoom no yog siv los ua cov khoom siv raw rau kev siv tshuaj xws li sulfathiazole, methionine, thiab cov ntsiav tshuaj npua rog.
Ua tsaug rau koj tuaj xyuas thiab txais tos koj cov lus nug zoo!
Cim npe nrov: Tuam Tshoj jual thiourea manufacturers, lwm tus neeg, Hoobkas
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