Dichloromethane | 75-09-2
Xogta Jirka ee Alaabta:
| Magaca Alaabta | Dichloromethane |
| Guryaha | dareere hufan oo aan midab lahayn oo leh ur udgoon |
| Meesha dhalaalaysa(°C) | -95 |
| Barta karkarinta(°C) | 39.8 |
| Cufnaanta qaraabada (Biyaha=1) | 1.33 |
| Cufnaanta uumiga qaraabada (hawo=1) | 2.93 |
| Cadaadiska uumiga oo buuxa (kPa) | 46.5 (20°C) |
| Kulaylka gubashada (kJ/mol) | -604.9 |
| Heerkulka daran (°C) | 237 |
| Cadaadis halis ah (MPa) | 6.08 |
| Octanol/qaybinta qaybinta biyaha | 1.25 |
| Barta toosh (°C) | -4 |
| Heerkulka dabka (°C) | 556 |
| Xadka qaraxa sare (%) | 22 |
| Xadka qaraxa hoose (%) | 14 |
| Solubility | Waxoogaa ku milmay biyaha, ku milmay ethanol, ether. |
Hantida Alaabta iyo Deganaanshaha:
1. Suntan aad u yar iyo ka soo kabashada degdega ah ee sumowga, sidaa darteed waxaa loo isticmaali karaa suuxin ahaan. Cuncun maqaarka iyo xuubabka. Jiirka da'da yar ee afka laga qaato LD50: 1.6mL/kg. fiirsashada ugu badan ee la ogol yahay hawada 500×10-6. Qalliinku waa inuu xidho maaskaro gaas ah, oo la helay isagoo sumaysan isla markiiba laga saaray goobta, daawaynta astaamaha ah. Ugu yaraan chloride methane. Uumiga waa suuxdin aad u badan, neefsashada xaddi badana waxay keeni doontaa sumo degdeg ah oo leh sanka xanuun, madax-xanuun iyo matag. Sumowga daba-dheeraada waxay sababtaa dawakhaad, daal, cunto xumo, impairred hematopoiesis iyo unugyada dhiigga cas oo yaraada. Methylene chloride dareeraha ah wuxuu keenaa dermatitis marka maqaarka la taabto. Neefsashada 90.5g/m3 uumiga jiirka ayaa lagu dilay 90 daqiiqo gudahood. Xakamaynta xadiga olfactory waa 522mg/m3 iyo fiirsashada ugu badan ee la ogol yahay goobta shaqada waa 1740mg/m3.
2. Xasilooni: Xasilooni
3.Waxyaabaha mamnuuca ah: biraha Alkali, aluminium
4.Xaaladaha looga hortagayo soo-gaadhista: Iftiin, hawo qoyan
5.Polymerisation khatar: non-polymerisation
Codsiga Alaabta:
1.Indheer in synthesis organic, alaabtan waxaa sidoo kale si ballaaran loo isticmaalo filimka cellulose acetate, bamgareynta triacetate cellulose, batroolka dewaxing, dareerayaasha ee wax soo saarka ee aerosols iyo antibiyootiga, fitamiino, xeryahooda steroidal, iyo sidoo kale biraha dusha lacquer nadiifinta iyo xaalufinta iyo filim qaade.
2. Loo isticmaalo qiiqa hadhuudhka iyo qaboojiyaha qaboojiyaha cadaadiska hooseeya iyo unugyada qaboojinta. Waxa loo adeegsaday sidii wakiilka afuufista kaaliyaha ee soo saarista xumbo urethane polyether ah iyo sida wakiilka afuufaya xumbo polysulfone extruded.
3. Loo isticmaalo sida dareere, saarista iyo mutagen. Loo isticmaalo cilmi-baarista hidde-sidaha dhirta.
4.Waxay leedahay dareere wanaagsan, waa dareere heerkul hooseeya oo leh sun yar iyo olol la'aan ka mid ah dareerayaasha warshadaha ee sida caadiga ah loo isticmaalo, waxayna leedahay xalal wanaagsan oo badan oo ah resins, paraffins iyo baruur. Inta badan waxaa loo isticmaalaa sida rinjiga jeexjeexa, dareeraha batroolka dewaxing, soo saarida walxaha kulaylka ah, soosaarta lanolin ee dhogorta iyo saliidda la cuni karo ee qumbaha, dareeraha filimka cellulose triacetate. Sidoo kale si weyn loogu isticmaalo fiber acetate, vinyl chloride fiber fiber, farsamaynta iyo dab-bakhtiiyeyaasha, qaboojiyaha, urotropine iyo wax soo saarka kale.
5. Loo isticmaalo warshadaha elektarooniga ah. Caadi ahaan loo isticmaalo sida wakiilka nadiifinta si saliidda looga saaro.
6.Widely loo isticmaalo sida dareere retardant olol leh dhibic karkaraya aad u hooseeya. Marka laga soo tago dareeraha lagu dhaqo matoorada diyaaradaha, mashiinada saxda ah, iwm, waxa kale oo loo isticmaali karaa sidii wax-is-daaqidda rinjiyada, waxa kale oo lagu qasi karaa dareeraha kale ee loo isticmaalo dhaqida warshadaha kala duwan.
7.Sidoo kale loo isticmaalo sida dareeraha ethyl ester fiber, suuxinta ilkaha ee deegaanka, qaboojiyaha iyo wakiilka dabka, iwm.
8. Loo isticmaalo sida dareere ah ee xabagta iyo warshadaha caaga ah.
Qoraalada Kaydinta Alaabta:
1. Ku kaydi bakhaar qabow oo hawo leh.
2. Ka fogow dabka iyo isha kulaylka.
3. Ku kaydi heerkul aan ka badnayn 32°C iyo qoyaan aan ka badnayn 80%.
4.Ka ilaali weelka oo xiran.
5.Waa in si gooni ah loo kaydiyaa biraha alkali ah iyo kiimikooyinka la cuni karo, waana in aan waligood la isku qasin.
6. Lagu qalabeeyay noocyo ku habboon iyo tirada qalabka dagaalka dabka.
7.Aagga kaydinta waa in lagu qalabeeyaa qalab daawaynta degdega ah ee daadsan iyo agab hoy oo ku habboon.
