4. Siv los ua cov xim tso rau hauv kev ua cov nqaij, tuaj yeem siv tau rau cov kaus poom nqaij, cov nqaij ua lag luam. Nyob rau hauv cov nqaij cov khoom los rau qhov ua kom loj hlob ntawm cov kab mob me me muaj qee qhov kev cuam tshuam (tshwj xeeb kev txwv ntawm Clostridium botulinum), tuaj yeem txhim kho qhov tsw ntawm nqaij sawb.

5. Siv los ua ib qho ntawm tus neeg sawv cev ua haujlwm txuas rau copolymerization ntawm butadiene thiab styrene emulsion. Kuj tseem siv los ua mordant rau ntaub dyeing, txhob lo lo ntxhuav, ntaub qhwv tshuaj dawb, tus neeg sawv cev rau kev kho cua sov, electroplating corrosion tshuaj tiv thaiv, tshuaj vasodilators thiab tshuaj lom tshuaj tshuaj reagents thiab kev tsim cov potassium nitrite, nitro tebchaw, azo dyes thiab lwm yam ntaub ntawv raw.

6. Cov tshuaj tiv thaiv kab mob. Kev kho cov txheej txheem cyanide lom ua rau kev ua kom puas yog tib yam li methylene xiav, tab sis lub luag haujlwm tseem muaj zog dua li methylene xiav.

7. Siv los ua tus neeg sawv cev ua haujlwm rau copolymerization ntawm butadiene thiab styrene emulsion. Kuj tseem siv tau los ua mordant rau ntaub dyeing, txhob lo lo ntxhuav, ntaub qhwv tshuaj dawb, tus neeg sawv cev rau kev kho cua sov, electroplating corrosion inhibitor, tshuaj ua cov vasodilator thiab tshuaj lom tshuaj tshuaj reagents, thiab kev tsim cov tshuaj potassium nitrite, nitro tebchaw, azo dyes thiab lwm yam nyoos cov ntaub ntawv.

8. Siv rau hauv cov dej khov zas, cov xim dej ua kua dej, kev siv ncaj qha, kua pleev cov kua qaub, cov roj av tawg, cov roj av zom zas, cov xim ua kom zoo nkauj. Kuj tseem siv rau hauv kev tsim tawm ntawm para-aminophenol thiab lwm yam tshuaj nruab nrab. Nws kuj yog siv nyob rau hauv cov khoom lag luam ntawm cov organic pigments, xws li nyiaj hlaws R, ci caws pliav, caws pliav hmoov, tswm ciab liab, toluidine liab, caws pliav precipitate, lisol caws pliav thiab ntshav sau paj precipitate CK. Siv rau hauv kev lag luam kws tshuaj rau kev tsim cov ethylaminopyrimidine, aminopyrimidine, thiab lwm yam. Siv nyob rau hauv kev tsim cov vanillin. Nws yog siv nyob rau hauv cov tshuaj dawb ntawm txhob lo lo ntxhuav thiab ntaub pua chaw thiab raws li mordant rau ntaub dyeing. Kuj tseem siv rau hauv kev kho cua sov hlau thiab electroplating corrosion inhibitor. Siv rau kev txiav roj, roj av, tshuaj tua kab mob thiab cov txheej txheem hydraulic.

9. Siv los ua cov nplaim dej-kua nplaum thiab cov nplaum ua kua nplaum ntawm cov kua tshuaj. Kuj tseem siv los tsim cov nitro tebchaw, caprolactam, azo dyes, para-aminophenol, vulcanization accelerator thiab vanillin thiab lwm cov ntaub ntawv nyoos. Hauv cov tshuaj, nws yog siv hauv kev tsim cov tshuaj analgin, aminophylline, pyrimethamine thiab caffeine thiab lwm yam tshuaj. Hauv kev siv tshuaj tua kab, nws yog siv los tsim phoxim, fenitrothion thiab fenvalerate thiab lwm yam tshuaj tua kab. Hauv kev luam ntawv thiab dyeing kev lag luam, nws yog siv los ua tus neeg sawv cev ntawm paj rwb fiber ntau dyeing lossis luam ntawv, diazotizing tus neeg sawv cev ntawm nafto dyeing thiab tiv thaiv tus neeg sawv cev ntawm undercolor thaum dyeing thiab luam ntawv. Kuj tseem siv los ua cov kab lo lo ntxhuav, paj rwb, tshuaj hemp bleach tus neeg sawv cev thiab butene oxidation dehydrogenation system ntawm butadiene distillation inhibitor, electroplating corrosion inhibitor, kev kho cua sov tus neeg sawv cev thiab tshuaj tua kab mob. Cov zaub mov qib sodium nitrite ua cov khoom noj ntxiv, kev siv ntau yog 0.15g / kg. qhov seem: cov nqaij hauv cov kaus poom ≤ 0.05g / kg, cov nqaij ua ≤ 0.03g / kg. 10. siv nyob rau hauv dyes, kev lag luam kws tshuaj los tsim cov tshuaj pleev thiab tshuaj, kuj siv hauv cov organic synthesis.

Cov khoom txuag no tuaj yeem pom hauv cov nqaij luncheon, kho cov nqaij thiab ntses. Nws ua rau ntau hom qog nqaij.