Caalami - Prime Tetrachlorethylene: Xaliye Warshadeed oo Aan Muhiim Ahayn
Goobaha Codsiga ee ugu Muhiimsan
Warshadaha nadiifinta qalalan, tetrachlorethylene waxay u taagan tahay dareeraha dahabka - heerka caadiga ah. Xalaalaynteeda gaarka ah si fudud ayay u burburtaa oo uga saartaa wasakh badan, laga bilaabo dufanka adag ee ku yaal dharka wanaagsan ilaa fiilooyinka ku dhex jira wasakhda. Qiimaha sare ee Kauri - Butanol (KB) wuxuu hubiyaa nadiifin dhammaystiran, halka sumcaddeeda sunta ah ee hooseysa ay siiso jawi shaqo oo ammaan ah hawl wadeennada. Silsiladaha nadiifinta qalalan ee ugu waaweyn Waqooyiga Ameerika, Yurub, iyo Aasiya waxay ku tiirsan yihiin tetrachlorethylene-keena si ay u keenaan natiijooyin aan nadiif ahayn, iyagoo ilaalinaya sharafta iyo muuqaalka dharka jilicsan.
Qaybta shaqada biraha ayaa sidoo kale si weyn uga faa'iidaysata tetrachlorethylene-keena. Maadaama ay tahay nadiifiye wax ku ool ah, waxay si dhakhso ah uga saartaa saliidaha, saliidaha, iyo wasakhda kale ee ka soo baxda dusha sare ee birta. Warshadaha wax soo saarka baabuurta ee Jarmalka iyo Japan, iyo xarumaha hawada sare ee Mareykanka, waxay u diyaarisaa biraha hababka sida rinjiyeynta, dahaadhka, iyo alxanka, iyadoo hubinaysa isku-dhejin heer sare ah iyo tayada badeecada. Iyadoo meesha ka saaraysa haraaga sababi kara miridhku, waxay dheereysaa cimriga qaybaha birta, iyadoo xoojinaysa cimriga alaabada dhammaadka ah.
Isku-darka kiimikada, tetrachlorethylene waxay u adeegtaa sidii dhexdhexaad muhiim ah. Qaab-dhismeedkeeda gaarka ah ee molecular wuxuu u oggolaanayaa falcelinno badan, taasoo suurtogalinaysa soo saarista kiimikooyinka gaarka ah, qaboojiyaha, iyo polymers. Warshadaha dawooyinka iyo elektaroonigga, waxaa loo isticmaalaa in lagu abuuro dareereyaal saafi ah oo heer sare ah oo loogu talagalay hababka muhiimka ah, iyadoo la hubinayo saxnaanta iyo tayada alaabada kama dambaysta ah. Tusaale ahaan, soo saarista balaastikada waxqabadka sare leh ee warshadaha elektaroonigga ah, isku-dhafka laga soo saaro tetrachlorethylene waxay gacan ka geystaan xoogga qaybaha iyo iska caabbinta kulaylka.
Tetrachloroethylene-keena sidoo kale wuxuu door muhiim ah ka ciyaaraa falanqaynta deegaanka. Waxaa loo ansixiyay inuu beddelo walxaha baabi'iya ozone-ka, waxaa loo isticmaalaa baaritaanka biyaha iyo carrada si loo soo saaro loona falanqeeyo wasakhowga ku salaysan saliidda. Shaybaarrada deegaanka ee adduunka oo dhan waxay ku tiirsan yihiin inay si sax ah u qiimeeyaan heerarka wasakhowga, hagista dadaallada hagaajinta iyo hubinta u hoggaansanaanta sharciyeed.
Tilmaamaha
| Magaca Badeecada | Tetrachloroethylene | |||||||||
| Qaaciddada Kiimikada | C2Cl4 | |||||||||
| Miisaanka Molekulerka | 165.83 g/mol | |||||||||
| Muuqaalka | Dareere hufan, wax wasakh ah oo la hakiyey ma jiraan | |||||||||
| Barta Dhalmada | -22.2°C | |||||||||
| Barta Karkarinta | 121.2°C | |||||||||
| Cufnaanta | 1.63 g/cm³ | |||||||||
| Lambarka CAS | 127-18-4 | |||||||||
| Koodhka HS | 2903220000 | |||||||||
| Lambarka EINECS | 204-825-9 | |||||||||
| Codsiga | Waxaa loo isticmaalaa sida dareeraha, wakiilka nadiifinta qalalan, saliidaynta birta, iyo walxaha kiimikada ceeriin ah | |||||||||
Xaashida Xakamaynta Tayada
| Magaca Badeecada | Tetrachloroethylene | ||||||
| SHAYGA | QIIMAHA CAADIGA AH (%) | QIIMAHA TIJAABADA (%) | |||||
| Muuqaalka | Dareere hufan, wax wasakh ah oo la hakiyey ma jiraan | Takhasuska u qalma | |||||
| Chromaticity/Hazen, (Pt-Co) ≤ | 15 | 10 | |||||
| Mawduuca % ≥ | 99.9 | 99.99 | |||||
| Uumi-baxa ≤ | 0.002 | / | |||||
| Biyaha % ≤ | 0.005 | 0.003 | |||||
| PH | 5.0-8.0 | 6.1 | |||||
| DARAJADA SARE | |||||||
Marka la soo koobo
Iyadoo lagu duubay weelal gaar ah, oo aan daadan karin, Tetrachlorethylene-keena Caalamiga ah wuxuu ilaaliyaa xasilloonidiisa inta lagu jiro kaydinta iyo rarista. Dufcad kasta waxay martaa tijaabo adag oo ku saabsan daahirnimada, halabuurka, iyo waxqabadka. Hadday tahay nadiifin qalalan, shaqo bir ah, wax soo saar kiimiko, ama falanqayn deegaan, tetrachlorethylene-keenu wuxuu bixiyaa isku halaynta iyo waxqabadka aad u baahan tahay si aad ugu fiicnaato warshadahaaga.