Sodium Thiocyanate: Ib qho tshuaj lom neeg siv ntau yam
Cov Ntawv Thov Tseem Ceeb
1. Kev Tsim Khoom Acrylic Fiber
Sodium thiocyanate yog ib yam khoom siv tseem ceeb hauv kev tsim cov acrylic fibers. Thaum lub sijhawm polymerization ntawm acrylonitrile, sodium thiocyanate ua haujlwm ua cov kuab tshuaj, muab ib puag ncig ruaj khov rau cov tshuaj polymerization. Nws yaj acrylonitrile monomers los tsim ib qho kev sib xyaw ua ke, ua rau cov acrylic fibers zoo. Acrylic fibers paub txog lawv cov tshuaj lom neeg zoo heev, tsis yooj yim hnav, thiab rwb thaiv tsev thermal, ua rau lawv siv dav hauv cov khaub ncaws, cov ntaub hauv tsev, thiab cov ntaub lag luam.
2. Tshuaj Reagent Tshuaj Ntsuam Xyuas
Sodium thiocyanate tseem ceeb heev rau kev tshuaj xyuas tshuaj lom neeg. Nws tuaj yeem tsim cov khoom sib xyaw nrog cov hlau ions xws li cov hlau ions, uas tso cai rau kev kuaj pom thiab ntsuas qhov ntau ntawm cov ions no los ntawm kev siv cov xim lossis titration. Piv txwv li, hauv kev tshuaj xyuas cov hlau ions hauv cov qauv dej, sodium thiocyanate reacts nrog cov hlau ions los tsim cov ntshav liab complex. Cov txheej txheem Colorimetric tuaj yeem txiav txim siab sai thiab raug qhov concentration ntawm cov hlau ions. Txoj kev no yog qhov rhiab heev thiab yooj yim rau kev khiav lag luam, ua rau nws siv dav hauv kev tshuaj xyuas dej zoo, kev saib xyuas ib puag ncig, thiab kev tswj xyuas zoo hauv kev tsim khoom lag luam.
3. Kev Lag Luam Hluav Taws Xob
Hauv kev lag luam electroplating, sodium thiocyanate feem ntau siv ua ib qho khoom ntxiv rau hauv cov tshuaj electroplating. Nws txhim kho kev ua tau zoo ntawm cov txheej electroplating, txhim kho qhov sib xws thiab kev nplaum ntawm cov plating, thiab ua rau kom tsis txhob xeb thiab zoo li qub ntawm cov khoom electroplated. Piv txwv li, hauv tooj liab electroplating, ntxiv cov sodium thiocyanate kom txaus yuav tiv thaiv kev hydrolysis ntawm cov ions tooj liab, ua rau cov txheej plating du thiab sib xws dua nrog tsawg dua qhov pinholes thiab pitting defects. Tsis tas li ntawd, sodium thiocyanate tuaj yeem siv rau hauv electroplating ntawm cov hlau muaj nqis xws li kub thiab nyiaj, txhim kho qhov ci ntsa iab thiab hnav tsis kam ntawm cov plating.
4. Kev Tsim Khoom Siv Organic
Sodium thiocyanate siv dav hauv kev tsim cov organic. Nws tuaj yeem ua haujlwm ua tus cyanation reagent rau kev tsim ntau yam organic compounds. Piv txwv li, hauv kev tsim cov nitriles, sodium thiocyanate tuaj yeem ua rau aldehydes lossis ketones los tsim cov nitriles sib xws. Ntxiv mus, sodium thiocyanate tuaj yeem siv los tsim cov thiourea compounds, uas yog qhov tseem ceeb hauv kev lag luam tshuaj, tshuaj tua kab, thiab dyes. Qhov reactivity thiab selectivity ntawm sodium thiocyanate ua rau nws yog ib qho reagent siv ntau hauv kev tsim cov organic.
5. Lwm Cov Ntawv Thov
Sodium thiocyanate kuj siv tau rau lwm yam teb. Piv txwv li, hauv kev lag luam dyeing thiab luam ntawv, nws siv tau ua tus pab cuam dyeing los txhim kho kev nqus thiab kev ceev ntawm cov xim. Hauv kev lag luam ua ntawv, nws siv tau rau hauv cov txheej txheem bleaching thiab deinking los txhim kho qhov zoo thiab kev ua tau zoo ntawm daim ntawv.
Sodium thiocyanate yog ib yam khoom siv tseem ceeb hauv kev tsim cov acrylic fibers. Thaum lub sijhawm polymerization ntawm acrylonitrile, sodium thiocyanate ua haujlwm ua cov kuab tshuaj, muab ib puag ncig ruaj khov rau cov tshuaj polymerization. Nws yaj acrylonitrile monomers los tsim ib qho kev sib xyaw ua ke, ua rau cov acrylic fibers zoo. Acrylic fibers paub txog lawv cov tshuaj lom neeg zoo heev, tsis yooj yim hnav, thiab rwb thaiv tsev thermal, ua rau lawv siv dav hauv cov khaub ncaws, cov ntaub hauv tsev, thiab cov ntaub lag luam.
2. Tshuaj Reagent Tshuaj Ntsuam Xyuas
Sodium thiocyanate tseem ceeb heev rau kev tshuaj xyuas tshuaj lom neeg. Nws tuaj yeem tsim cov khoom sib xyaw nrog cov hlau ions xws li cov hlau ions, uas tso cai rau kev kuaj pom thiab ntsuas qhov ntau ntawm cov ions no los ntawm kev siv cov xim lossis titration. Piv txwv li, hauv kev tshuaj xyuas cov hlau ions hauv cov qauv dej, sodium thiocyanate reacts nrog cov hlau ions los tsim cov ntshav liab complex. Cov txheej txheem Colorimetric tuaj yeem txiav txim siab sai thiab raug qhov concentration ntawm cov hlau ions. Txoj kev no yog qhov rhiab heev thiab yooj yim rau kev khiav lag luam, ua rau nws siv dav hauv kev tshuaj xyuas dej zoo, kev saib xyuas ib puag ncig, thiab kev tswj xyuas zoo hauv kev tsim khoom lag luam.
3. Kev Lag Luam Hluav Taws Xob
Hauv kev lag luam electroplating, sodium thiocyanate feem ntau siv ua ib qho khoom ntxiv rau hauv cov tshuaj electroplating. Nws txhim kho kev ua tau zoo ntawm cov txheej electroplating, txhim kho qhov sib xws thiab kev nplaum ntawm cov plating, thiab ua rau kom tsis txhob xeb thiab zoo li qub ntawm cov khoom electroplated. Piv txwv li, hauv tooj liab electroplating, ntxiv cov sodium thiocyanate kom txaus yuav tiv thaiv kev hydrolysis ntawm cov ions tooj liab, ua rau cov txheej plating du thiab sib xws dua nrog tsawg dua qhov pinholes thiab pitting defects. Tsis tas li ntawd, sodium thiocyanate tuaj yeem siv rau hauv electroplating ntawm cov hlau muaj nqis xws li kub thiab nyiaj, txhim kho qhov ci ntsa iab thiab hnav tsis kam ntawm cov plating.
4. Kev Tsim Khoom Siv Organic
Sodium thiocyanate siv dav hauv kev tsim cov organic. Nws tuaj yeem ua haujlwm ua tus cyanation reagent rau kev tsim ntau yam organic compounds. Piv txwv li, hauv kev tsim cov nitriles, sodium thiocyanate tuaj yeem ua rau aldehydes lossis ketones los tsim cov nitriles sib xws. Ntxiv mus, sodium thiocyanate tuaj yeem siv los tsim cov thiourea compounds, uas yog qhov tseem ceeb hauv kev lag luam tshuaj, tshuaj tua kab, thiab dyes. Qhov reactivity thiab selectivity ntawm sodium thiocyanate ua rau nws yog ib qho reagent siv ntau hauv kev tsim cov organic.
5. Lwm Cov Ntawv Thov
Sodium thiocyanate kuj siv tau rau lwm yam teb. Piv txwv li, hauv kev lag luam dyeing thiab luam ntawv, nws siv tau ua tus pab cuam dyeing los txhim kho kev nqus thiab kev ceev ntawm cov xim. Hauv kev lag luam ua ntawv, nws siv tau rau hauv cov txheej txheem bleaching thiab deinking los txhim kho qhov zoo thiab kev ua tau zoo ntawm daim ntawv.
Cov Lus Qhia Tshwj Xeeb
| Lub Npe Khoom | Sodium Thiocyanate | |||||||||
| MF | NaSCN | |||||||||
| Qhov tsos | kua tsis muaj xim | |||||||||
| Kev dawb huv | 98% | |||||||||
| CAS TSIS MUAJ | 540-72-7 | |||||||||
| Tus lej HS | 2842901100 | |||||||||
| EINECS TSIS MUAJ | 208-754-4 | |||||||||
| Daim Ntawv Thov | Siv ua ib qho mordant thiab zas xim; siv rau hauv kev tsim cov fiber ntau los ntawm tib neeg. | |||||||||
Daim Ntawv Tswj Xyuas Zoo
| Lub Npe Khoom | Sodium Thiocyanate | ||||||
| COV KHOOM TXHEEB XYUAS | Cov Qauv | TXHEEJ TXHEEM KEV TSOM XAM | |||||
| Kev Huv (NaSCN) | ≥98% | 99.20% | |||||
| Cov dej noo | ≤0.5% | 0.30% | |||||
| Chloride (Cl⁻) | ≤0.01% | 0.01% | |||||
| Sulfate (SO₄²⁻) | ≤0.02% | 0.01% | |||||
| Cov hlau hnyav (raws li Pb) | ≤10 ppm | ||||||
| Hlau (Fe) | ≤5 ppm | 2 ppm | |||||
| Cov tshuaj uas tsis yaj hauv dej | ≤0.05% | 0.02% | |||||
Ntim Khoom thiab Khaws Cia
Sodium thiocyanate raug ntim rau hauv cov thawv kaw kom ntseeg tau tias nws tseem qhuav thiab tsis muaj kuab paug thaum lub sijhawm thauj mus los thiab khaws cia. Nws yuav tsum tau khaws cia rau hauv qhov chaw txias, qhuav, thiab muaj cua nkag zoo, deb ntawm cov tshuaj corrosive muaj zog xws li acids thiab alkalis. Thaum lub sijhawm khaws cia, yuav tsum tau them sai sai rau kev tiv thaiv dej noo thiab kev zam kom tsis txhob kub dhau kom ntseeg tau tias cov khoom ruaj khov thiab muaj kev nyab xeeb.