Lemar sararin samaniya jiki Properties:
Lemar sararin samaniya (O3), kuma aka sani da superoxide, shi ne wani allotrope na oxygen (O2), wanda shi ne mai gas da "musamman wari" a yanayinsa. Lemar sararin samaniya da aka yafi rarraba a cikin stratospheric yanayi a wata tsawo na 10 zuwa 50 km. A al'ada zafin jiki da kuma matsa lamba, low taro na lemar sararin samaniya ne a colorless iskar gas, a lokacin da taro kai 15%, shi nuna wani kodadde blue color.
Lemar sararin samaniya sinadaran Properties:
Lemar sararin samaniya ne sosai m, da rabin-rai na bazuwar ne game da 20 zuwa 30 da minti. Kamar yadda da yawan zafin jiki ƙaruwa, da bazuwar kudi ƙaruwa. Lokacin da yawan zafin jiki ya wuce 100 ° C, da bazuwar ne sosai tsanani. Lokacin da yawan zafin jiki ya kai 270 ° C, shi za a iya tuba a cikin oxygen nan da nan. Lemar sararin samaniya decomposes sauri a ruwa fiye da a cikin iska. A ruwa dauke da impurities, lemar sararin samaniya za a iya hanzari bazu cikin oxygen.
Lemar sararin samaniya yana da karfi da oxidizing ikon, wanda shi ne kawai ƙananan fiye da sunadarin flourine. Wannan dukiya ne yafi amfani a aikace. Lemar sararin samaniya na goyon bayan konewa. Lokacin da combustibles an sa a cikin lemar sararin samaniya gas na yanayi, konewa ne mafi tsanani fiye da a oxygen.
Lemar sararin samaniya rage dauki
A, lemar sararin samaniya rage dauki tare da inorganic abubuwa
Lemar sararin samaniya reacts tare da ferrous baƙin ƙarfe, Mn2 +, sulfide, thiocyanide, cyanide, chlorine, da dai sauransu
Kamar:
B, lemar sararin samaniya dauki da kwayoyin halitta
A dauki na lemar sararin samaniya da kwayoyin halitta a ruwa ne musamman rikitarwa.
(1) Reaction na lemar sararin samaniya tare da olefinic mahadi
Lemar sararin samaniya readily reacts tare da olefinic mahadi da ciwon biyu shaidu, da kuma karshe samfurin na dauki iya zama wata cakuda monomeric, polymeric, ko aggered ozonides. Lemar sararin samaniya oxides decompose cikin aldehydes kuma acid.
(2) Reaction na lemar sararin samaniya tare da aromatic mahadi
A dauki tsakanin lemar sararin samaniya da kuma aromatic mahadi ne jinkirin, da hadawan abu da iskar shaka jerin lemar sararin samaniya tare da wadannan ne: benzene <naphthalene <phenanthrene.
(3) reacts da makaman nukiliya gina jiki (amino acid) da kuma Organic ammonia
A hadawan abu da iskar shaka jerin lemar sararin samaniya a cikin wadannan garwayayye ne
Alkenes> Amines> Phenols> Polycyclic Aromatic hydrocarbons> alcohols> Aldehydes> Paraffins
Yawan guba da kuma corrosivity
Lemar sararin samaniya ne a cutarwa gas. Lokacin da maida hankali ne 6,25 × 10-6mol / L (0.3mg / L), shi yana da stimulating ji da idanu, hanci da makogwaro. Taro (6.25-62.5) × 10-5mol / L (3 ~ 30mg / L), zai haifar da ciwon kai da kuma gida inna na numfashi gabobin. taro 3,125 × 10-4 ~ 1.25 × 10-3mol / L (15 ~ 60mg / L), shi ne cutarwa ga jikin mutum. The yawan guba ne ma alaka da lamba lokaci. Alal misali, tsawon lokaci daukan hotuna zuwa lemar sararin samaniya taro 1,748 × 10-7mol / L (4ppm) zai iya haifar da m cututtukan zuciya, amma daukan hotuna zuwa lemar sararin samaniya a kasa 20ppm ba ya wuce 2h, babu wani dindindin zuwa ga jikin mutum. Saboda haka, canja darajar da lemar sararin samaniya maida hankali ne 4,46 × 10-9 mol / L (0.1 ppm) 8 h. Tun da wari daga lemar sararin samaniya ne sosai mayar da hankali, a lokacin da maida hankali ne 4,46 × 10-9 mol / L (0.1 ppm), mutane suka ji shi a sauƙaƙe. Saboda haka, ko da lemar sararin samaniya a duniya da aka yi amfani da fiye da shekara ɗari, amma babu wani rahoto na mutuwa saboda lemar sararin samaniya guba.
Lemar sararin samaniya ne sosai oxidizing, ban da zinariya da platinum, ozonized iska yana da wani lalatattu sakamako a kan kusan dukkan karafa. Aluminum, tutiya, da gubar da lemar sararin samaniya ake karfi oxidized, amma Chrome-dauke gami ne ma free of lemar sararin samaniya lalata. saboda haka, Chrome-baƙin ƙarfe gami (bakin karfe) ne sau da yawa amfani da a samar da kayayyakin sassa na lemar sararin samaniya sa kayan aiki da kuma cika kayan aiki da suke a tsaye lamba tare da lemar sararin samaniya.
Safe lemar sararin samaniya taro
Bisa ga littafin "lemar sararin samaniya Technology Aikace-aikacen Collection" edited by Tsinghua University, da maida hankali lemar sararin samaniya a aikace-aikace da aka classified zuwa hadari taro a iska, amfani da natsuwa, ruwa aikace-aikace taro, muhalli da taro da kuma gane taro.
◎ lemar sararin samaniya masana'antu kiwon lafiya nagartacce: International lemar sararin samaniya Association: 0.1 ppm, daukan hotuna na 10 hours. United States, Jamus, Faransa, Japan: 0.1 ppm, daukan hotuna na 8 hours, kasar Sin: 0,15 ppm, daukan hotuna na 8 hours
◎ A lemar sararin samaniya yayyo da iyali lemar sararin samaniya disinfection hukuma kada ya wuce 0.2 MG / M3 (koma zuwa mita 1.5 tafi), da kuma saura taro bayan disinfection daya sake zagayowar kada ya wuce 0.3 MG / M3.
Air aikace-aikace taro
◎ Air tsarkakewa bukatar lemar sararin samaniya maida hankali ne tsakanin 1 MG / M3 zuwa 10 MG / M3.
◎ lemar sararin samaniya ne mafi aiki a low zafin jiki da kuma high zafi yanayi, idan dangi zafi ne m fiye da 45%, lemar sararin samaniya yana kusa babu wani kisa da sakamako a kan dakatar da kwayoyin a cikin iska, yayin da Its sakamako hankali qara a 60% kuma ya kai a kalla a 95% zafi.
◎ lemar sararin samaniya disinfection for abinci aiki bita, 0.5 ~ 1.0 ppm iya kashe 80% daga cikin halitta kwayoyin cuta a cikin iska.
◎ Cold ajiya disinfection bukatar wani lemar sararin samaniya taro na 6 zuwa 10 ppm, Bayan bi da da lemar sararin samaniya da kuma rufe ajiya dakin 24 hours, da kwayan kisan kudi ne game da 90% da kuma mold kisan kudi ne game da 80%.
◎ lokacin ajiya na 'ya'yan itatuwa, 2 zuwa 3 ppm na lemar sararin samaniya iya hana ci gaban na mold, da kuma mika ajiya lokaci.
Lemar sararin samaniya taro a ruwa aikace-aikace
◎ Tap ruwa lemar sararin samaniya tsarkakewa, kasa da kasa misali ne 0.4 MG / L (0.4ppm) lamba lokaci: 4 minti.
◎ The narkar da lemar sararin samaniya matakin kiyaye a 0.1-0.5 MG / L for 5-10 minti ga kowa disinfection dalilai.
◎ lemar sararin samaniya a ruwa disinfection da sterilization ne m, da kwayoyin aka kashe a cikin 0.5 zuwa 1 minti daya. A wani taro na 4 MG / L, da hepatitis B cutar inactivation kashe kudi ne 100% a cikin 1 minti daya.
◎ Herbold rahoton: A 20 ° C, 0,43 MG / L (0.43ppm) lemar sararin samaniya taro, za a iya kashe E. coli ta 100%, da kuma kawai 0,36 MG / L (0.36ppm) lemar sararin samaniya maida hankali ake bukata a 10 ° C.
◎ Lokacin da lemar sararin samaniya maida hankali ne 0.25 zuwa 38 MG / L, yana daukan kawai 'yan seconds gaba daya inactivate da hepatitis A virus (HAV).
◎ Ma'adinai ruwa disinfection bukatar wani lemar sararin samaniya taro na 0.4 ~ 0.5mg / L, shi zai iya saduwa da sterilization da kuma ingancin da bukatun.
◎ Bottled ruwa magani ya kamata isa lemar sararin samaniya taro na 0.3 ~ 0.5mg / L.
Post lokaci: Mayu-14-2019