Chromic acid

Nyob rau hauv thiaj li yuav qhia ntxiv tus txheem ntawm lub chromic acid, nws yog tsim nyog mus ntsib cov ib yam ntawm theoretical Science News for KIDS. Yog hais tias koj muaj tsis muaj lub siab xav los yog lub sij hawm rau txoj kev ua no, ces qhov no tsab xov xwm no yog rau koj. Chromic acid yog ib tug crystalline khoom yog dua li liab. Nws yog ib qho ntsha nruab nrab lub dag lub zog thiab muaj peev xwm yuav siv tau koom nyob rau hauv kev ua lag luam. Txawm hais tias yam khoom uas nws tus kheej fais tam sim no tsis ua, tab sis nws cov ntsiab thiab melts muaj xws li muaj peev xwm. Ntxiv mus, chromic acid ntsev yog heev tshuaj lom thiab oxidants.

chromic acid ntsiab yog siv nyob rau hauv ntau yam teb ntawm tib neeg kev ua si. Nyob rau hauv tshuaj laboratory chromic acid tshuaj tej zaum kuj yuav indispensable, uas yog tsis yooj yim sua yam uas tsis tau tej yam thwmsim. Nrog nws cov kev pab Muab organic seem uas yog zoo insoluble nrog rau lwm cov reagents. Qhov feem ntau heev siv cov chromic acid - tu ntawm glassware los ntawm ntau yam tshuaj uas muaj peev xwm tsis tau raug tshem tawm los ntawm tsuas yog ntxuav nrog dej. Nws yog ua tau rau kom tau kev kuj huv si tais diav rau thwmsim tias inevitably ua rau teeb meem loj nqi nyiaj.

Chromic acid yog ib tug heev tseem ceeb nyob rau hauv lub etching txheej txheem. Chromic sib tov yog paub tus qauv ntawm ntau cov ntaub ntawv rau manufacturing conductive lem thiab week. Ib tug ntawm cov txawv ntau siv lub tshuaj yog daim duab ua ntawm cov ntaub ntawv, vim hais tias vim nws cov khoom, nws yog muaj peev xwm mus hloov cov txheej nto cov tiav cov ntaub ntawv. Nyob rau hauv feem ntau nws yog siv rau kev thov ib nyem rau tus hlau, txawm hais tias lwm cov hniav cov ntaub ntawv. Chromic acid-kho cov khoom rau ib tug ntev lub sij hawm khaws lawv cov aesthetic qualities thiab tsis hnov mob nrog cov ib puag ncig.

Nyob rau hauv lub tsheb ntiaj teb no, chromic acid kuj pom lawv siv. Feem ntau cov muaj pes tsawg leeg siv tau los ua lub catalysts. Nyob rau hauv cov ntaub ntawv no, ua tsaug rau nws muaj yog ib tug txo tiam ntawm teeb meem tshuaj los ntawm rav cua tsheb roj cua. Qhov no feature tso cai rau ntiaj teb no-nrov npe tsheb hom los tsim ib qho environmentally-phooj ywg tsheb nrog tsawg heev emissions ntawm rav cua tsheb gases, thiab yog li ntawd lub kawg pa phem. Ntxiv mus, ntau heev siv thiab ib daim ntawv thov technology chromium - chromic acid kho khoom uas tej zaum yuav puas thaum lub sij hawm kev sib txhuam. Acid anhydrides thiab acid nyob rau hauv cov ntaub ntawv no zoo heev ua rau kom cov hardness ntawm lub workpiece nto. Cov nyhuv no yog tiav nyob rau hauv lub resulting chromium plating txheej txheem, cov kev kawm thickness ntawm lub chromium txheej yog nce los ntawm sawv nyob rau hauv hluav taws xob tam sim no.

Los ntawm ib tug tov ntawm chromic acid tej zaum yuav mus txo hlau corrosion. Ib tug zaj duab xis ntawm zinc oxide nyob rau hauv cov ntaub ntawv no heev nruj nreem npog lub kho nto, thiab acquires yam khoom nws tus kheej me ntsis golden Hawj txawm. Cov kev tiv thaiv oxide zaj duab xis nyob rau hauv lub hlau yog tsim kuj los ntawm txoj kev lub passivation txheej txheem. Nyob rau hauv cov ntaub ntawv no, ua tsaug rau tshwj xeeb kev daws teeb meem rau chromic acid-raws li hlau yog pauv mus rau lub passive lub xeev thiab yuav ntau resistant mus rau sab nraud hloov thiab raug rau corrosive tej kev kawm. Lwm siv chromic acid - tus txheej txheem ntawm kev tsim ultra chaw thiab cov ntaub ntawv. Yeej nws tshwj xeeb tshaj yog muaj nuj nqis thaum tsim lub puab thiab cov tub ntxhais sands, uas kis tau daim ntawv tshiab los ntawm ib tug cua kub txheej txheem.

Chromic acid tau nrees coj nws qhov chaw nyob rau hauv tib neeg lub neej, nws yog tam sim no ib qho nyuaj rau xav txog tej yam lub heavy kev lag luam tsis muaj no substance. Thiab muab hais tias lub acid yog tsis kim heev, thiab nws coj ib tug ua qhov chaw nyob rau hauv lub tsim ntawm cov muaj lub ntiaj teb no!