Vagari Vakabviswa Mushure mekuparara kweNitric Acid muArizona - Asi Chii Ichi Acid?

Gore reorange-yellow rinogadzirwa ne nitric acid painoora uye inogadzira nitrogen dioxide gasi. Mufananidzo wechikwereti: Vovantarakan/Shutterstock.com

NeChipiri, Kukadzi 14, vagari vePima County kuSouthern Arizona vakaudzwa kuti vabve kana kuti vagare mudzimba mushure mekunge rori yakatakura liquid nitric acid yarova ndokurasira zvaivemo mumugwagwa wakatenderedza.

Tsaona iyi yakaitika nenguva dza2:43 pm uye yaisanganisira rori yekutengeserana yaidhonza “2,000 pounds” (~900 kilograms) yenitric acid, iyo yakabondera, ndokuuraya mutyairi uye kukanganisa nzira huru yekumabvazuva-kumadokero inoyambuka nzvimbo zhinji dzeSouth America. West.

Vekutanga vapindura, kusanganisira Dhipatimendi reMoto reTucson neArizona Dhipatimendi rePublic Safety, munguva pfupi yadarika vakaburitsa munhu wese mukati mehafu-mamaira (0.8 kilometres) kubva pakaitika tsaona iyi ndokuraira vamwe kuti vagare mudzimba uye vadzime maair conditioner nemaheater. Kunyangwe hurongwa hwekuti “pekugara-munzvimbo” hwakazobviswa, panotarisirwa kuve nekuvhiringika mumigwagwa yakatenderedza nzvimbo yakakoromoka sezvo kemikari ine ngozi iri kugadziriswa.

Nitric acid (HNO3) imvura isina ruvara uye inoparadza zvakanyanya inowanikwa mumarabhoritari akawanda akajairika uye inoshandiswa mumaindasitiri akasiyana sekurima, migodhi, uye kugadzira dhayi. Asidhi iyi inowanzo wanikwa mukugadzirwa kwefetereza uko inoshandiswa kugadzira ammonium nitrate (NH4NO3) necalcium ammonium nitrate (CAN) yefotereza. Anenge ese mafetereza ane nitrogen anoshandiswa pakudya uye nekudaro pane kuwedzera kuri kuda kwavari sezvo huwandu hwepasi rose hunowedzera uye hunoisa kudiwa kukuru pakugadzirwa kwechikafu.

Zvinhu izvi zvinoshandiswa zvakare sezvinotangira mukugadzirwa kwezvinoputika uye zvakanyorerwa kudzora munyika dzakawanda nekuda kwekugona kwavo kushandiswa zvisizvo - ammonium nitrate chaive chinhu chakakonzera kuputika kweBeirut muna 2020.

Nitric acid inokuvadza kune zvakatipoteredza uye ine chepfu kuvanhu. Kuratidzwa kune asidhi, maererano neCenters for Disease Control and Prevention (CDC), inogona kukonzera kutsamwa kumaziso uye ganda uye inogona kutungamirira kune dzakasiyana-siyana dzakanonoka nyaya dzemapapu, dzakadai se edema, pneumonitis, uye bronchitis. Kuoma kwenyaya idzi kunoenderana nedosi uye nguva yekuratidzwa.

Mifananidzo nemapikicha akatorwa neveruzhinji anoratidza gore hombe reorange-yellow richiyerera mudenga richibva panzvimbo yetsaona yekuArizona. Gore iri rinogadzirwa ne nitric acid kana raora roburitsa gasi renitrogen dioxide.

Kuteuka kwe nitric acid kunouya mazuva gumi nerimwe chete mushure mekunge chitima chekutakura cheNorfolk Southern chadonha muOhio. Chiitiko ichi chakakonzerawo kuburitswa kwevagari sezvo vinyl chloride yakatakurwa mumotokari shanu dzenjanji yakabatira moto uye yakatumira mapuropa ehupfu hwehydrogen chloride uye phosgene mumhepo.