Difluoromethane
Thilri zohfelnak
Chemical min: Difluoromethane
CAS Nambar: 75-10-5
Molecular Formula: CH2F2
Molecule rit: 52.02 g/mol
A tlangpi in min: R-32 (a lumtertu)
Difluoromethane (R-32) cu rong a ngei lomi, a ttha lomi, le tlawmpal a kang khomi hydrofluorocarbon (HFC) a si i lumternak ah a ttha tukmi a si. A ra laimi chan pawngkam he aa remmi lumternak sii a si caah, a tthatnak, a himnak le pawngkam he aa remmi a si caah mi tampi nih an theihmi, hlanlio GWP sang (Global Warming Potential) lumternak caah a biapi tukmi lam dang pakhat ah a cang.
A Biapimi Thilri
| Ngeihmi thilri | A konglam | Thathnemnak |
| A linnak hmun (1 atm ah) | -51.6°C (-60.9°F) | A niam deuhmi hmannak ah ttha tein lumnak thlennak a tuah khawh |
| GWP (Vawleipumpi Lungthawhnak, 100 - kum) | 675 | R - 410A (GWP = 2088) le R - 22 (GWP = 1810) nakin a niam deuh, carbon footprint a zorter |
| ODP (Ozone zorternak a si khomi) | 0 | Ramkip pawngkam zohkhenhnak phunglam (tahchunhnak ah, Montreal Protocol) he aa tlakmi ozone tthen ah rawhralnak a um lo |
| A biapi tukmi lumnak | 78.1°C (172.6°F) | A tlawm deuhmi in a sang deuhmi pawngkam ah rian a ttuanmi thli lumternak le lumternak pump system caah aa tlak |
| Mei kangh khawhnak | Tlawmpal a kang khomi (ASHRAE 34 ningin A2L thleidannak) | A dikmi suaisamnak he innchungkhar le chawlehnak hmannak tam deuh caah a him |
| Lungthawhnak Hman khawhnak | A sang (R - 410A nakin a tha deuh) | Khuasik/lumternak tthatnak a ṭhanchoter, thilri nih thazaang a hmanmi a zorter |
A tlangpi in hmanmi
R-32 cu a tthatnak le pawngkam caah thathnemnak a ngeih caah riantuannak le hmanmi thilri phunphun ah tam deuh in hman a si:
Inn le Chawlehnak Thli lumternak: A tthenmi AC unit, window ACs, le VRV (Variable Refrigerant Volume) system hna caah a hrampi lumternak ah. R-410A cu thilri thar ah a thlen, thazaang hmannak kha 10-15% tiang a zorter.
Lungthawhnak Pump: Thli-hram lumnak pump (ASHPs) le ti-hram lumnak pump (WSHPs) caah a ttha, pawngkam lumnak (-10°C in 5°C) hmanh ah a fekmi lumternak riantuannak a pek.
Refrigeration Systems: A hmete in a ngan deuhmi fridge, langhternak kuang, le a kikmi chiahnak ah hman a si, pawngkam hnahnawhnak tlawmte lawng he ttha tein a kik khawhnak hnga.
Foam Blowing Agents: Cheukhat riantuannak ah, R-32 cu a fekmi polyurethane foams caah thlitu thilri bantukin rian a ttuan, foam insulation sining a tthanchoter.
Organic Synthesis: Sii le special polymers telh in fluorinated chemical sernak ah thilri hrampi ah a hman.
Himnak & Zulhphung
Himnak Lamhruainak
Hmannak: Vun/mit he direct in i tawngh hrial; thli a lut ttha lonak hmun ah huhphenhnak kutdonghrolh, mithmaihuh, le thawchuahnak thilri hmang.
Chiahnak: A linmi, a ro, thli a lut khomi hmun ah chiah, meikhu, lum tuknak le oxidizing agents hna he aa hlatnak ah chiah. A kharmi, a rawk kho lomi thilri (tahchunhnak ah, thir asiloah aluminium cylinder) hmang.
Phurhchanhnak: UN phunglam zulh in lumternak thilri phurh (UN nambar: 3252); cylinder pawl kha ttha tein an hren hna i min an bunh hna ti kha zohfel.
Phunglam Zulhphung
ASHRAE 34 phunglam (A2L himnak thleidannak) a tlinh.
EU F-Gas Phunglam (Phunglam (EU) 2014/512) he aa tlakmi, F-gas chuahmi tlawmternak le GWP tlawmmi lam dang a thanchotermi.
Thilri sertu ngan pipi (tahchunhnak ah, Daikin, Mitsubishi Electric, Gree) nih an AC le lumternak pump model thar bik ah hman ding in cohlanmi a si.
Technical Data Sheet (TDS) Highlights
| Parameter | Man ngeihnak | Hneksaknak Lam |
| Thianhlimnak (min) | 99.9% | GC (Gas Chromatography) |
| Ti a tlawmmi (a tam bik) | 10 ppm | Karl Fischer Titration |
| Acid aa telmi (a tam bik) | 0.1 ppm | Titration |
| A rawk kho lomi a tangmi (a tam bik) | 10 mg/kg | Gravimetry |
| Meihol hneknak (25°C ah) | 1.72 MPa | Pressure Gauge |
Zeicah Kan Difluoromethane (R-32) kha kan thim?
Thianhlimnak sang: 99.9% thianhlimnak nih thilri riantuan ning a fekmi le caan sau a hman khawhnak a pek.
Pawngkam he aa remmi: Low GWP (675) nih vawleicung carbon neutrality tinhmi a bawmh i pawngkam zohkhenhnak phunglam fek tein a tlinh.
Man-tlawm: A sang deuhmi lumnak tthatnak nih a donghnak hmantu hna caah thazaang man a zorter, cu lio ah kan thilri tam deuh pek khawhnak nih thil cawknak man a zorter.
Vawleicung bawmhnak: ISO 9001 le REACH telh in hngalhternak he vawleicung pumpi ah thiamnak lei ruahnak cheuhnak, himnak cawnnak le a caan hmaan tein kuatnak kan pek hna.
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