Ígwè (III) oxide CAS 1309-37-1
| Akara egwu | Xi - mgbakasị ahụ |
| Koodu ihe egwu | R36 / 37/38 - na-akpasu iwe na anya, usoro iku ume na akpụkpọ ahụ. |
| Nkọwapụta nchekwa | S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike. |
| NJ UN | UN 1376 |
Iron (III) oxide CAS 1309-37-1 ewebata
àgwà
Oroma-acha uhie uhie ka ọ bụrụ purplish-acha uhie uhie trigonal crystalline ntụ ntụ. Njupụta nke ikwu 5. 24. Ebe mgbaze 1565 Celsius (decomposition). Na-adịghị edozi na mmiri, soluble na hydrochloric acid, sulfuric acid, ubé soluble na nitric acid na mmanya. Mgbe ọkụ, a na-ahapụ oxygen, nke nwere ike mee ka hydrogen na carbon monoxide belata ka ọ ghọọ ígwè. Ezi mgbasa ozi, ike tinting na ike izo ezo. Ọ dịghị mmanu mmanu na enweghị mmiri permeability. Okpomọkụ na-eguzogide, ọkụ na-eguzogide, acid-eguzogide na alkali na-eguzogide.
Usoro
Enwere ụzọ nkwadebe mmiri na akọrọ. Ngwaahịa mmiri nwere kristal dị mma, ihe ndị dị nro, ma dị mfe ịkwanye, ya mere ha dị mma maka pigmenti. Ngwaahịa akọrọ nwere nnukwu kristal na ihe siri ike, ma dabara adaba maka ihe ndọta na ihe na-egbuke egbuke na ihe egweri.
Usoro mmiri: a na-emeghachi ngwa ngwa ụfọdụ nke 5% ferrous sulfate solution na ngwọta caustic soda (a chọrọ ngafe alkali nke 0.04 ~ 0.08g / ml), a na-ewebata ikuku na ụlọ okpomọkụ iji mee ka ọ ghọọ ihe niile. ihe ngwọta colloidal iron hydroxide na-acha ọbara ọbara-agba aja aja, nke a na-eji dị ka kristal nucleus maka itinye ígwè oxide. Site na nucleus kristal ahụ a kpọtụrụ aha n'elu dị ka onye na-ebu ya, na ferrous sulfate dị ka onye na-ajụ, a na-ebute ikuku, na 75 ~ 85 Celsius C, n'okpuru ọnọdụ nke ọnụnọ ígwè ígwè, ferrous sulfate na-emeghachi omume na ikuku oxygen na ikuku. iji mepụta ferric oxide (ya bụ, iron red) etinyere na kristal nucleus, na sulfate na ngwọta na-emeghachi omume na igwe dara na-emegharị ferrous. sulfate, na ferrous sulfate bụ oxidized n'ime ígwè na-acha uhie uhie site na ikuku ma na-aga n'ihu na-edebe ya, nke mere na okirikiri ahụ na-agwụ na njedebe nke usoro dum iji mepụta ígwè oxide red.
Usoro akọrọ: nitric acid na-emeghachi omume na mpempe ígwè iji mepụta nitrate ferrous, nke a na-eme ka ọ dị mma na crystallized, dehydrated na nke a mịrị amị, na calcined na 600 ~ 700 Celsius C maka 8 ~ 10h mgbe egwerichara, wee sachaa, akpọnwụ na gwepịara iji nweta ígwè oxide. ngwaahịa uhie. Iron oxide odo nwekwara ike iji dị ka akụrụngwa, na iron oxide red nwere ike nweta site calcination na 600 ~ 700 Celsius C.
jiri
Ọ bụ pigmenti inorganic ma jiri ya mee ihe dị ka ihe mgbochi nchara na ụlọ ọrụ mkpuchi. A na-ejikwa ya dị ka ihe agba maka rọba, marble wuru, terrazzo n'elu ala, ndị na-acha agba na ihe ndozi maka plastik, asbestos, akpụkpọ anụ arụrụ arụ, tapawa akpụkpọ anụ, wdg. mmepụta nke magnetik ferrite components.
nche
Ajuju n'ime akpa kpara akpa nke nwere akpa rọba polyethylene, ma ọ bụ juru n'ime akpa akwụkwọ kraft 3-layer, nwere nha ụgbụ nke 25kg kwa akpa. Ekwesịrị ịchekwa ya n'ebe kpọrọ nkụ, ghara iru mmiri, zere okpomọkụ dị elu, ma dịpụrụ adịpụ na acid na alkali. Oge nchekwa dị irè nke ngwugwu na-emegheghị bụ afọ 3. Nsi na nchebe: Uzuzu na-akpata pneumoconiosis. Ọnụ ọgụgụ kachasị mma nke ikuku, iron oxide aerosol (soot) bụ 5mg/m3. Lezienụ anya na ájá.
