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Magaca Alaabta:Propylene glycol
Qaab molecular:C3H8O2
CAS Maya:57-55-6
Qaab-dhismeedka molecular ee alaabta:
| Shayga | Unug | Qiimaha |
| daahirnimo | % | 99.5min |
| Midabka | APHA | 10max |
| Waxyaalaha biyaha | % | 0.05max |
| Muuqashada | - | Dareere hufan oo aan midab lahayn, ur yar |
Propylene glycol waxa cilmi ahaan loogu magac daray “1,2-propanediol”, waxana uu leeyahay qaacido kiimiko ah oo ah CH3CHOHCH2OH iyo miisaan molecular oo ah 76.10. Waxaa jira atamka kaarboonka chiral ee molecule-ka. Rafiiqa ay wada nool yihiin waa dareere viscopic-ka ah oo xoogaa basbaas leh. Waxay leedahay cuf-jiid gaar ah oo ah 1.036 (25/4 °C), barta qaboojinta -59 °C, iyo barta karkarinta 188.2 °C, siday u kala horreeyaan 83.2 °C (1,333 Pa). Waa lagu qallajin karaa biyo, acetone, ethyl acetate iyo chloroform, waxayna ku milmaysaa etherka. Waxay ku milmaysaa saliido badan oo lagama maarmaan ah, laakiin laguma khaldami karo ether petroleum iyo saliid paraffin. Aad bay u deggan tahay kulaylka iyo iftiinka, waxayna aad ugu xasilloon tahay kulaylka hooseeya. L-isomerkeedu wuxuu leeyahay meel karkaraya oo ah 187 ilaa 189 °C iyo wareegga indhaha ee gaarka ah [α] ee D20-15.0°. Heerkul sare ayaa lagu ogaysiinayaa ilaa propionaldehyde, lactic acid, pyruvic acid iyo acetic acid.
Propylene glycol waa diol leh dabeecadda guud ee khamriga. Waxay la falgali kartaa asiidh-nolojiin iyo organic si ay u dhaliso mono-ama di-esters. Waxay la falgashaa propylene oxide si ay u dhaliso ether, leh hydrogen halide si ay u dhaliso halohydrin, iyo acetaldehyde si ay u dhaliso methyl dioxolane.
Propylene glycol waxaa loo isticmaalaa codsiyada la midka ah sida glycols kale.
Propylene glycol waa walxo muhiim ah oo loogu talagalay polyester-ka aan dheregsanayn, resin epoxy, iyo poliurethane. Qadarka isticmaalka ee aaggan ayaa ah qiyaastii 45% wadarta isticmaalka propylene glycol. Polyester-ka noocan oo kale ah ee aan dheregsanayn ayaa si weyn loogu isticmaalaa bacaha la xoojiyay iyo dahaarka dusha sare. Propylene glycol aad ayuu ugu fiican yahay viscosity iyo hygroscopicity waana mid aan sun ahayn, sidaas darteed waxaa si weyn loogu isticmaalaa wakiilka hygroscopic, antifreeze, saliidaha iyo dareerayaasha cuntada, warshadaha dawooyinka iyo qurxinta. Warshadaha cuntada, propylene glycol waxay la falgashaa aashitada dufanka leh si ay u siiso propylene ester ee asiidhka dufanka leh, waxaana inta badan loo isticmaalaa emulsifier cunto; Propylene glycol waa dareere u fiican dhadhanka iyo midabka. Propylene glycol waxaa caadi ahaan loo isticmaalaa sida dareerayaasha, jilciya iyo kaabayaasha, iwm. warshadaha dawooyinka ee soo saarista noocyada kala duwan ee boomaatada iyo salves. Propylene glycol sidoo kale waxaa loo isticmaalaa sida dareere iyo jilciye loogu talagalay isqurxinta maadaama ay leedahay milan wanaagsan oo leh dhir udgoon oo kala duwan. Propylene glycol waxa kale oo loo istcimaalaa maaddooyinka qoyaan tubaakada, wakiilada fangas-ka, saliidaha qalabka habaynta cuntada iyo dareerayaasha khad lagu calaamadiyo cuntada. Xalka biyaha leh ee propylene glycol waa wakiil ka hortag ah oo wax ku ool ah.
Chemwin waxay siin kartaa noocyo badan oo kaarboon-karboon ah iyo dareerayaasha kiimikaad ee macaamiisha warshadaha.Intaa ka hor, fadlan akhri macluumaadka aasaasiga ah ee soo socda ee ku saabsan ganacsiga nala samee:
1. Amniga
Badbaadadu waa mudnaantayada koowaad. Marka laga soo tago siinta macaamiisha macluumaadka ku saabsan isticmaalka badbaadada iyo deegaanka saaxiibtinimo leh ee alaabtayada, waxaan sidoo kale go'aansanay inaan hubinno in khataraha badbaadada shaqaalaha iyo qandaraaslayaasha la dhimay ilaa ugu yaraan macquul ah oo macquul ah. Sidaa darteed, waxaan uga baahannahay macmiilka inuu hubiyo in heerarka badbaadada dejinta iyo kaydinta ku habboon ay buuxiyeen ka hor inta aan la keenin (fadlan tixraac lifaaqa HSSE ee shuruudaha iyo shuruudaha iibka ee hoose). Khubaradayada HSSE waxay ku siin karaan hagitaan heerarkan.
2. Habka gaarsiinta
Macaamiisha waxay ka dalban karaan oo ka keeni karaan alaabta chemwin, ama waxay ka heli karaan alaabta warshadeena wax soo saarka. Noocyada gaadiidka ee la heli karo waxaa ka mid ah baabuurta xamuulka qaada, tareenada ama gaadiidka casriga ah (xaalad gooni ah ayaa jira).
Marka laga hadlayo shuruudaha macmiilka, waxaan qeexi karnaa shuruudaha maraakiibta ama booyadaha waxaanan adeegsan karnaa heerarka badbaadada / dib u eegista iyo shuruudaha.
3. Tirada dalabka ugu yar
Haddii aad alaab ka soo iibsato mareegahayaga, tirada dalbashada ugu yar waa 30 tan.
4.Bixinta
Habka lacag bixinta caadiga ah ayaa si toos ah looga jarayaa 30 maalmood gudahooda laga bilaabo qaansheegta.
5. Dukumentiga keenista
Dukumeentiyada soo socda ayaa la keenay keenista kasta:
Bill of Lading, CMR Waybill ama dukumeenti gaadiid oo kale oo khuseeya
Shahaadada Falanqaynta ama waafaqsanaanta (haddii loo baahdo)
Dukumeenti la xidhiidha HSSE oo waafaqsan xeerarka
Dukumeenti kastamka oo waafaqsan xeerarka (haddii loo baahdo)
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