Koj Paub Dab Tsi Txog Cov Xim Av Sulfur (1)?

Cov xim sulfur yog cov xim uas yaj hauv alkali sulfur. Lawv feem ntau yog siv rau kev zas xim paj rwb thiab kuj tseem siv tau rau cov ntaub paj rwb / vitamin sib xyaw. Tus nqi qis, cov xim feem ntau tuaj yeem ntxuav thiab ceev, tab sis xim tsis ci txaus. Cov hom siv feem ntau yogXiav Sulphur 7,Xim liab sulfur 14 Sulfur Black Blueishandyog li ntawd. Cov xim pleev xim sulfur uas yaj tau tam sim no muaj. Ib qho xim tsim los ntawm qhov kev sib xyaw ua ke ntawm cov amines, phenols, lossis nitro compounds ntawm cov hydrocarbons aromatic nrog sulfur lossis sodium polysulphur,

qhov tshwj xeeb

Cov xim sulfur tsis yaj hauv dej, thiab sodium sulfur lossis lwm yam tshuaj txo qis siv los txo cov xim rau cov leucochromes uas yaj tau. Nws muaj kev sib raug zoo rau cov fiber thiab ua rau cov fiber ploj, thiab tom qab ntawd rov qab kho nws lub xeev tsis yaj los ntawm kev oxidation thiab kho rau ntawm cov fiber. Yog li cov xim sulfur kuj yog cov xim VAT. Cov xim vulcanized tuaj yeem siv rau kev zas xim paj rwb, hemp, viscose thiab lwm yam fibers, nws cov txheej txheem tsim khoom yooj yim, pheej yig, tuaj yeem zas xim monochrome, tab sis kuj tuaj yeem sib xyaw xim, zoo fastness rau lub hnub ci, tsis zoo fastness hnav. Chromatographic tsis muaj xim liab, ntshav, tsaus dua, tsim nyog rau kev zas xim muaj zog.

hom

Raws li cov xwm txheej sib txawv ntawm kev zas xim, cov xim sulfur tuaj yeem muab faib ua cov xim sulfur nrog sodium sulfur ua tus neeg sawv cev txo qis thiab cov xim sulfur VAT nrog sodium disulfite ua tus neeg sawv cev txo qis. Yuav kom siv tau yooj yim, pawg sulfonic acid raug hloov nrog sodium metabisulfite lossis sodium formaldehyde bisulfite (lub npe dav dav) kom tau cov xim sulfur uas yaj tau hauv dej, uas tuaj yeem siv ncaj qha rau kev zas xim yam tsis muaj tus neeg sawv cev txo qis.

(1) cov xim sulfur siv sodium sulfur ua tus neeg sawv cev txo qis;

(2) cov xim txo cov tshuaj sulfur (tseem hu ua Haichang dyes) nrog cov hmoov pov hwm ua tus neeg sawv cev txo qis;

(3) Cov kua xim sulfur yog ib hom xim sulfur tshiab uas tsim thiab tsim tawm rau kev ua tiav yooj yim.

Kev siv cov xim zoo li no zoo ib yam li cov xim VAT uas yaj tau, uas tuaj yeem diluted ncaj qha nrog dej raws li qhov sib piv rau qhov kev teeb tsa, tsis tas ntxiv cov neeg sawv cev txo qis, thiab qee cov sodium sulfur yuav tsum tau ntxiv thaum tsuas yog ib feem ntawm cov xim yog lub teeb. Hom xim chromatography no yog qhov dav heev, muaj xim liab ci, xim av ntshav, Hu ntsuab.

Yug me nyuam

Muaj ob txoj kev tsim khoom lag luam ntawm cov xim sulfur: ① txoj kev ci, cov khoom siv raw aromatic amines, phenols lossis nitro teeb meem thiab sulfur lossis sodium polysulphur ntawm qhov kub siab ci, txhawm rau tsim cov xim daj, txiv kab ntxwv, xim av sulfur. ② Txoj kev npau, cov amines, phenols lossis nitro tshuaj ntawm cov hydrocarbons aromatic nyoos thiab sodium polysulphur raug cua sov thiab npau hauv dej lossis cov kuab tshuaj organic kom tau txais cov xim dub, xiav thiab ntsuab vulcanization.

xwm

1, zoo ib yam li cov xim ncaj qha

(1) ntsev siv tau los txhawb kev zas xim.

(2), tus neeg sawv cev kho xim cationic thiab tus neeg sawv cev kho xim ntsev hlau kom txhim kho kev ceev.

2, zoo ib yam li VAT dyes

(1), cov xim yuav tsum tau txo kom leachite nrog tus neeg sawv cev txo kom zas cov fiber thiab oxidize ntawm cov fiber. Hloov chaw ntawm tus neeg sawv cev txo qis muaj zog, sodium sulfur yog tus neeg sawv cev txo qis tsis muaj zog. Txawm li cas los xij, cov khoom ncaj qha ntawm leaches rau cov fibers tom qab txo qis qis dua li ntawm VAT dyes, thiab qhov nyiam ntawm cov xim sib sau ua ke yog ntau dua.

(2) Cov tshuaj tiv thaiv nrog kua qaub tuaj yeem tsim cov roj H2S, thiab cov tshuaj tiv thaiv nrog txhuas acetate tuaj yeem tsim cov xim dub txhuas sulfur nag lossis daus.

3, qhov kub siab dua tuaj yeem siv los txhim kho qhov sib txawv ntawm cov xim thiab txhim kho qib kev nkag mus.