Sulphur yog cov khoom tsis muaj tshuaj lom nrog cov tshuaj lom neeg lub cim s thiab cov sulfur muaj pes tsawg ntawm 16. Cov neeg Sulfur yog xim daj, tseem hu ua cov leej faj lossis daj leej faj. Cov txiv ntoo uas tsis muaj dej nyob hauv dej, me ntsis soluble hauv ethanol, thiab yooj yim solbon disulfidecs2.
1.Physical Cov Khoom Siv
- Sulphur yog feem ntau me ntsis daj ua lead ua, tsw ntxhiab thiab tsis tau.
- Sulphur muaj ntau ntau cov feem, txhua yam uas yog tsim ntawm S8Cyclic lwg me. Cov neeg sawv cev uas nquag muaj cov orthodhomb (tseem hu ua rhombic sulfur, α-sulfur) thiab monoclinic Sulphur (tseem hu ua β-a-sulfur).
- Orthordhombic Sulphur yog ib daim ntawv ruaj khov ntawm leej faj, thiab thaum rhuab mus rau ntawm 100 ° yuav txias kom tau txais monoclinic sulfur. Kev hloov pauv ntawm Orthoorhombic Sulfur thiab Monoclinic Sulfur yog 95.6 ° c.orhombic sulfur yog lub ruaj khov ntawm cov leej faj hauv chav tsev. Nws cov ntaub ntawv ntshiab yog daj-ntsuab (cov leej faj muag muag ntawm lub khw muag khoom zoo li daj vim muaj cov cim ntawm cycloheptasulfur). Orthordhombic Sulfur yog tiag tiag insoluble hauv dej, muaj tsis zoo thermal conductivity, yog cov tshuaj insulator zoo.
- Monoclin tib lub npe yog cov suav tsis tau muaj cov muaju nyob sab nraud tom qab melting leej faj thiab nchuav tawm cov kua tshaj. Monoclinic Sulphur Orthorhombic Sulfur yog variants ntawm theem pib ntawm qhov kub. Monoclin cov Sulfur tsuas yog ruaj khov saum toj 95.6 ℃, thiab qhov kub thiab txias, nws maj mam hloov mus rau hauv OrthoORDHOMPUL. Lub ntsiab lus melting ntawm Orthorhombic Sulphur yog 112.8 ℃, lub suab me yaj ntawm Monoclin cov Sulphur yog 119 ℃. Ob leeg yog cov soluble heev hauv cs2.
- Kuj tseem muaj cov neeg Sulfur. Elastic Sulfur yog daj daj, Elastic cov khoom uas yog tsawg soluble hauv cov roj carbon disulfide dua li lwm cov sulpur. Nws yog insoluble hauv dej thiab me ntsis soluble hauv cawv. Yog tias Molten Sulfur tau sai sai rau rau hauv dej txias, lub ntev-cov Sulfur yog tsau, ncab elastic sulfur. Txawm li cas los xij, nws yuav nyuaj dhau lub sijhawm thiab ua Monoclin cov neeg Sulphur.
2.Chemical Khoom
- Sulphur tuaj yeem hlawv hauv huab cua, rov qab nrog cov pa oxygen kom tsim cov sulphur dioxide (yog li ntawd₂) roj.
- Sulphur reacts nrog txhua lub halogens thaum cua sov. Nws hlawv cov tshuaj fluorine los ua cov sulphur hexafluoride. Kua sulfur nrog chlorine los ua tus disritating decritating disulfur dichhloride (s2Cl2). Ib qho sib npaug sib xyaw muaj cov liab sulfur dichloride (SCL) tuaj yeem tsim thaum chlorine yog nyob rau hauv ntau dhau thiab catalyst, xws li fecl3los yog sni4,yog siv.
- Sulphur muaj peev xwm hnov mob nrog kub tshuab tshuaj hydroassium hydroxide (Koh) Kev daws rau cov poov tshuaj sulfide thiab potassium thisulfate.
- Sulphur tsis hnov mob nrog dej thiab tsis-oxidizing cov kua qaub. Sulphur reacts nrog kub nitric acid thiab concentrated sulfuric acid thiab tuaj yeem yog oxidized rau hauv sulfuric acid thiab sulfur dioxide.
3.Qhov chaw ua teb
- Kev Siv Siv
Lub ntsiab siv ntawm cov leej faj yog nyob rau hauv kev tsim cov sulphuric teb, cov neeg mob carbon monomat, cov pakoob Ntau tshaj 80% ntawm lub ntiaj teb cov Sulfur txhua xyoo siv nyob rau hauv kev tsim cov sulfuric acid. Sulfur kuj tseem siv nyob rau hauv kev tsim cov roj hmab vulcanized. Thaum cov roj hmab raw yog vulcanized rau hauv cov roj hmab vulcanized, nws kis tau tensileity tensile muaj zog, thiab insolubility hauv cov kuab tshuaj organic. Cov khoom siv roj hmab feem ntau yog ua los ntawm cov roj hmab vulcanized, uas yog tsim los ntawm reacting raw roj hmab nrog thiab cov reeporators ntawm qee qhov ntsuas kub thiab ntsuas. Sulfur tseem xav tau nyob rau hauv kev tsim cov hmoov dub thiab ntais ntawv, thiab nws yog ib qho ntawm cov raw loj rau foob pob hluav taws. Ib qho ntxiv, cov leej fajrur tuaj yeem siv rau hauv kev tsim cov sulfurized dyes thiab pigments. Piv txwv li, calcining sib xyaw ntawm kaolin, carbon, leej faj, diatomaceous ntiaj teb, lossis quartz hmoov tuaj yeem tsim cov xim xiav hu ua ultramarine. Kev lag luam kom dawb thiab kev lag luam kws tshuaj kuj tseem noj ib feem sulfur.
- Kev Kho Mob Siv
Sulphur yog ib qho ntawm cov khoom xyaw hauv ntau cov tshuaj muaj mob tawv nqaij. Piv txwv li, cov roj tung yog rhuab nrog cov sulfur los sulfonate nrog sulfonate nrog sulfonate nrog sulfron lif acid thiab ces neutralized nrog dej ammonia kom tau sulfonated Tung roj. Ib qho 10% tshuaj pleev ua los ntawm nws muaj los tiv thaiv cov teebmeem thiab deelling thiab tuaj yeem siv los kho ntau yam tawv nqaij thiab swoo.
Lub Sijhawm Post: Dec-09-2024