Flash-dhibcood

Flash - sari degdeg ah isku dar ah ee hawada iyo uumi of walxaha guban kara, oo ay la socdaan siyasad dhalaalaya gaaban. sari deggan la this. Mitidiin ah - heerkulka ugu yar ee walxaha aruurshey, taas oo ay dusha loo sameeyay labo ka mid ah biligleynaya markii a dhimbiil, olol ama jirka incandescent ah.

Awoodda u iftiimiyo marka heerkulku yar waxay leeyihiin dheecaan la xidhiidha qaybta ololi kara. mitidiin ah ugu badan ee walxaha sida in crucibles xiran yahay + 61 ° C, furan - + 66 ° C. Qaar ka mid ah walxaha degna u guban kara, oo gaarey caadiga ah ee heerkulka alaabeed ay.

Determination of cadaadis of ceeryaamo cokan waxaa suuragal ah in dareere kasta oo ololi kara. Waxay kordhisaa in saamiga ay u kordhiyaan in heerkulka mid ah waxyaabaha la. Marka hal dhibic flash gaaro (ugu badnaan) index u muhiim ah, oo waxa uu noqonayaa mid suurtogal ah si ay u ilaaliyaan sari.

Si kastaba ha ahaatee, bilawga kortay "uumiga - dareere ah" u baahan doonaa waqti qaar ka mid ah, kaas oo ah saamiyeed si ay heerka of formation of uumi. sari deggan waxaa lagu gaari karaa, lagu gaarey qaar ka mid ah, (waayo, mid kasta oo walax shaqsi) heerkulka alaabeed, maxaa yeelay, heerkulka sari waa had iyo jeer ka badan tahay hal dhibic flash ah.

heerkulka Direct beddelo at kaas oo wax flash uu leeyahay dhibaatooyin gaar ah. Sidaa darteed, dhibic flash waxaa la arkaa in ay heerkulka darbiyada markabka reaction, taas oo flash this lagu arkay. Ku xiran tahay si toos ah on xaaladaha heerkulka dhaca gudahood weel kulaylka dhaafsiga ka hawl horseed deegaanka, mugga dareeraha ah weel.

Muujiyeyaasha ogolaan tijaabo si ay u xisaabiso la oggolaan waayo, heerkulka gaadiidka iyo kaydinta of walxaha ololi kara. heerkulka qiyaasay flash in crucibles u xiran yihiin, sida caadiga ah by Pensky-Martens. COC waxaa loo cayimay experimentally.

cabitaanno gaar ahaan khatar ah oo awood u biligleynaya heerkulka a hoos ku -18 ° C ee crucibles xiran hoos - 13 ° C - furan. Sii dareere halista ah la wareegay oo iftiimiyo karaa heerkulka a of + 23 ° C ee crucibles xiran in + 27 ° C furan. Muujiyeyaasha heerkulka dareere halista ah ilaa + 60 ° C loo dhan yahay ee crucibles xiran in + 66 ° C loo dhan yahay - marka furan.

Flash farqiga heerkulka, ka suuroggalaan iyo sari si weyn u kala duwan tahay, oo ay tahay shaqsi xoolahayaga oo kasta. dhibic Flash shidaalka naaftada, tusaale ahaan - in aan ka badnayn + 70 ° C. heerkulka sari Its - + 1100 ° C. Mitidiin ah - laga bilaabo + 100 ° si + 119 ° C. Laakiin heerkulka baatrool flash ah, ay sabab u tahay Degenaansho ah mid aad u sarreeya, waa + 40 ° C, iyo mararka qaarkood ka yar. heerkulka alaabeed Its - + 300 ° C. Muujiyeyaasha on baatrool, more guud. Waa in loo tixgeliyo dhexdhexaad ah, tan iyo markii ay jiraan noocyada kala duwan ee shidaalka (wadada (xagaaga, xilliga qaboobaha), hawada) oo leh sifooyin ku ool ah oo kala duwan iyo, sida, heerkulka flash kala duwan sari suuroggalaan.

Sari - geeddi-socodka ah oo ay la socdaan xoreynta xaddi weyn oo kulaylka la warshadu hawada sifo iftiinka (luminescence), awood heerkulka gaar ah xoolahayaga oo oxygen kasta helaan ama wakiilada kale si ay (baaruud, uumiga bromine iyo wixii la mid ah.).

The ugu khatarta badan yihiin qaraxyo, lagu gartaa reaction kiimikada degdeg ah in ay sii daayaan tamar wayn, oo taageeraya shaqada farsamo. Dabka ayaa qaraxa ku faafi karaa 3,000 mitir halkii labaad. Sari ee isku dar ah ee heerka sida la yiraahdo qaraxa. Waa natiijo ah oo ka mid ah qaraxa hirarka lama filaan ah inta badan waxay sababi waxyeello weyn iyo shilalka.