Koj Paub Dab Tsi Txog Cov Xim Xeb Sulphur (2)?

hom tsiaj

Cov xim sulfur tseem ceeb yog sulfur dub (CI sulfur dub 1). Nws yog npaj los ntawm hydrolyzing 2, 4-dinitrochlorobenzene thiab sodium hydroxide kua rau hauv sodium dinitrophenol kua thaum ze li ntawm boiling, tom qab ntawd cua sov thiab boiling nrog sodium polysulfide kua ntawm qee qhov piv molecular, thiab txo thiab sulfurizing tshuaj tiv thaiv nyob rau hauv siab lossis tsis muaj siab. Tom qab sulfurization tshuaj tiv thaiv tiav, nws yog qhuav ncaj qha nrog lub tshuab ziab khaub ncaws kom tau txais cov xim qub. Nws yog ces sib xyaw rau hauv cov xim lag luam. Thaum lub sijhawm vulcanization, qhov piv molecular ntawm sodium phenol thiab sodium polysulfide, x (piv txwv li, sulfur index) hauv sodium polysulfide Na2Sx thiab qhov kub tshuaj tiv thaiv yog sib txawv, yog li ntawd lub teeb xim ntawm cov khoom sulfur dub muaj qhov sib txawv ntawm lub teeb ntsuab, lub teeb ntsuab liab thiab lub teeb liab. Qhov tsis zoo tshaj plaws ntawm sulfur dub zas xim yog qhov tshwm sim ntawm brittle ntaub. Qhov no yog vim tias cov molecule dub sulfide muaj cov sulfur nquag hauv daim ntawv ntawm polysulfide saw. Cov tshuaj sulfur no tsis ruaj khov, thiab thaum cov xim raug cua sov lossis muab tso rau hauv huab cua kub thiab noo noo, nws yooj yim rau oxidize rau sulfuric acid, ua rau cov ntaub paj rwb brittleness. Nyob rau hauv xyoo tas los no, los ntawm kev txhim kho cov txheej txheem tsim cov tshuaj sulfur dub, cov tshuaj sulfur dub ib txwm raug txias txog li 100 ℃ tom qab ua tiav, thiab formaldehyde thiab monochloroacetic acid raug ntxiv los tswj cov tshuaj sulfur tsis ruaj khov hauv cov xim, thiab cov tshuaj sulfur dub tiv thaiv brittle tau ua.

Siv

Cov tshuaj sulfur dyes siv los txo cov dej-soluble leucosome nrog sodium sulfide lossis hmoov pov hwm, thiab tom qab ntawd hloov rov qab mus rau cov xim tsis yaj thawj tom qab raug nqus los ntawm cov xim los ntawm oxidation lossis lwm yam teebmeem, yog li ntawd cov xim tau kho rau ntawm cov xim.

Thov

Cov xim sulfur yog siv dav hauv kev zas xim ntawm cov cellulose fibers, feem ntau yog siv rau hauv cov xov paj, cov duab thiab lwm yam ntaub ntawv kev lag luam thiab cov ntaub hnyav. Cov hom siv feem ntau yog sulfur Yuan, sulfur xiav,

Kev daws teeb meem txo qis

(1) Cov khoom ntawm cov neeg sawv cev txo qis

1. Cov Khoom ntawm Na2S

(1) Kuj hu ua alkali sulfide, lub npe hu ua smelly alkali, cov khoom xyaw zoo ntawm kev lag luam alkali sulfide feem ntau yog li 50%, thiab qhov tsos yog xim av daj. Nws yog ib qho tshuaj txo qis, tab sis kuj yog ib qho tshuaj alkali muaj zog, ruaj khov. Lub peev xwm txo qis ntawm sodium sulfide qis dua li ntawm cov hmoov pov hwm, qhov alkalinity qis dua caustic soda thiab ntau dua li cov tshauv soda, thiab nws muaj zog corrosion rau daim tawv nqaij.

(2) Sodium sulfide hydrolysis rau NaHS, NaHS ntawm qhov txo cov xim, nws tuaj yeem pom tias sodium sulfide txo qis peev xwm cuam tshuam nrog nws cov hydrolysis.

(3) Sodium sulfide tsim cov roj H2S thaum nws ntsib cov kua qaub, yog li yuav tsum ceev faj kom tiv thaiv nws kom tsis txhob muab tso ua ke nrog cov kua qaub.

(4) Kev raug sodium sulfide hauv huab cua yuav nqus dej, C02, 02, thiab lwm yam, yog li ntawd cov khoom xyaw zoo txo ​​qis thiab maj mam ua tsis tiav. Yog li ntawd, nws yuav tsum tau kaw thaum khaws cia, thiab nws cov khoom xyaw yuav tsum tau soj ntsuam thaum nws tsis siv dua ntev.

(5) Cov tshuaj sodium sulfide yuav tsum tsis txhob siv ntev, txwv tsis pub nws yuav raug oxidized los ntawm huab cua thiab txo nws cov txiaj ntsig.

siv

Feem ntau yog siv rau paj rwb, hemp fiber dyeing

Peb lub tuam txhab feem ntau tsim tawmXim dub xiav sulfur,Xiav Sulphur Brn 150%,Xim liab sulfur 14,Cov Xim Liab Sulphurthiab lwm yam feem ntau cov xim sulfur, uas muag hauv tsev thiab txawv teb chaws, xws li Bangladesh, Pakistan, Qaib ntxhw, Is Nrias teb, Nyab Laj, Ltalis, thiab lwm yam. Nws tau lees paub thiab qhuas los ntawm feem ntau ntawm cov neeg siv khoom, vim peb qhov kev saib xyuas zoo thiab tus nqi qis. Peb kuj ua tsaug rau peb cov neeg siv khoom rau lawv txoj kev txhawb nqa thiab kev lees paub ntawm peb lub tuam txhab.