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ngwaahịa

Ezigbo ndị na-ere ahịa China nke Chromic Acid Flakes

nkowa nkenke:

Chromic acid bụ ngwọta ihicha a na-ejikarị na ụlọ nyocha.Ọ nwere ma acidity na oxidizability.Ọ nwere ike wepụ unyi na ihe ndị na-adịghị edozi ahụ na mgbidi dị n'ime na n'èzí nke ngwá ọrụ nnwale.


Nkọwa ngwaahịa

Mkpado ngwaahịa

Nkọwapụta

Usoro:Cro3
agwa:Acha uhie uhie na-acha aja aja, soluble na mmiri na ether, nsi.
Ojiji:Electric-plating, polishing, chrome-metal mmepụta, pigmenti, ọgwụ, catalyst, oxidant, osisi ichekwa, raw-ihe nke crome oxide, wdg.
ngwugwu:na UN kwadoro ụgbụ ígwè nke 50kg ma ọ bụ 250kg net nke ọ bụla.
Na-eme ụkpụrụ:GB1610-1999.

Ihe

Nkọwapụta

Ọkwa A

Ọkwa B

Ọkwa C

Cro3

99.7

99.5

99.0

Ihe na-adịghị edozi mmiri ≤

0.02

0.05

0.10

Sulphates ≤

0.06

0.15

0.30

Na ≤

0.05

-

-

Usoro nyocha

Mkpebi nke ọdịnaya chromic acid na ikuku: a na-anakọta ihe nlele ahụ site na nzacha, gbazere na sulfuric acid, wee kpebie site na Colorimetry (usoro NIOSH) mgbe ịgbakwunye diphenylcarbazide.

Mkpebi nke ọdịnaya chromic acid n'ime mmiri: a na-ewepụta ihe nlele ahụ wee kpebisie ike site na nleba anya absorption spectrometry ma ọ bụ colorimetry.

Usoro mkpofu mkpofu: mgbe mbelata kemịkalụ gasịrị, mmiri mmiri mkpofu chromic acid na-atụgharị na-atụgharị ghọọ chromium trivalent, a na-edozi uru pH nke ngwọta ahụ ka ọ bụrụ mmiri ozuzo, a na-ejupụtakwa sedimenti dị ka mkpofu kemịkal.

Ebumnuche

Chromic acid bụ ngwọta ihicha a na-ejikarị na ụlọ nyocha.Ọ nwere ma acidity na oxidizability.Ọ nwere ike wepụ unyi na ihe ndị na-adịghị edozi ahụ na mgbidi dị n'ime na n'èzí nke ngwá ọrụ nnwale.Ọtụtụ mgbe, a na-enweta ihe ngwọta nke ịsacha ahụ site n'ịgbakwunye potassium dichromate n'ime sulfuric acid na-etinye uche, ma chromium hexavalent na-emerụ gburugburu ebe obibi, na mgbe ụfọdụ, ngwá ọrụ ahụ ga-emebi na gburugburu acid siri ike, ya mere etinyere chromic acid ngwọta ịsacha.

Enwere ike iji chromic acid dị ka oxidant.Ọtụtụ ogige organic nwere ike oxidized site chromic acid, na ọtụtụ hexavalent chromium dabeere oxidants e mepụtara.Jones reagent: ngwọta mmiri nke chromic acid, sulfuric acid na acetone, nke nwere ike oxidize isi na nke abụọ alcohols na carboxylic acid na ketones kwekọrọ ekwekọ na-enweghị emetụta unsaturated agbụ.Pyridinium chlorochromate: nke a kwadebere site na chromium trioxide na pyridine hydrochloride, nwere ike oxidize mmanya mbụ na aldehyde.Collins reagent: ntinye nke chromium trioxide na pyridine.

Chromic acid nwekwara ike iji chromium plating, elu-ọcha metal chromium, pigmenti, mordant, ọgwụ na coal kọntaktị, nakwa dị ka na mmepụta nke ụfọdụ glazes na acha iko.


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