225:
150:
35:
571:
549:, such as using HCFC-142b as a feedstock to make PVDF. HCFCs could also be used in equipment that was manufactured before January 1, 2010. The point of these new regulations was to phase-out HCFCs in much the same way that CFCs were phased out. HCFC-142b production in non article 5 countries like the United States was banned on January 1, 2020, under the Montreal Protocol.
579:
421:
557:
According to the
Alternative Fluorocarbons Environmental Acceptability Study (AFEAS), in 2006 global production (excluding India and China who did not report production data) of HCFC-142b was 33,779 metric tons and an increase in production from 2006 to 2007 of 34%.
677:
561:
For the most part, concentrations of HCFCs in the atmosphere match the emission rates that were reported by industries. The exception to this is HCFC-142b which had a higher concentration than the emission rates suggest it should.
534:(CFCs) that were initially undergoing a phase-out per the Montreal Protocol, but HCFCs still have a significant ozone-depletion ability. As of year 2020, HCFC's are replaced by non ozone depleting
514:
1-Chloro-1,1-difluoroethane is a highly flammable, colorless gas under most atmospheric conditions. It has a boiling point of -10 °C. Its critical temperature is near 137 °C.
434:
721:
1029:
606:(CFC-11, R-11), which also grew about ten times more abundant in the atmosphere by year 1985 (prior to introduction of HCFC-142b and the Montreal Protocol).
264:
934:
John S. Daniel; Guus J.M. Velders; A.R. Douglass; P.M.D. Forster; D.A. Hauglustaine; I.S.A. Isaksen; L.J.M. Kuijpers; A. McCulloch; T.J. Wallington (2006).
885:
848:
Protection of
Stratospheric Ozone: Notice of Data Availability; Information Concerning the Current and Predicted Use of HCFC-22 and HCFC-142b
1019:
946:
239:
803:
542:
689:
377:
634:
441:
820:
182:
765:
203:
984:
740:
1024:
673:
599:
799:
860:
618:
397:
598:
The concentration of HCFC-142b in the atmosphere grew to over 20 parts per trillion by year 2010. It has an
935:
527:
487:
731:. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. 2007-03-03.
145:
603:
1014:
843:
590:) at stations around the world. Abundances are given as pollution free monthly mean mole fractions in
847:
639:
107:
47:
889:
531:
220:
73:
591:
732:
625:, which had a much greater atmospheric concentration near 400 parts per million in year 2020.
535:
34:
936:"Chapter 8. Halocarbon Scenarios, Ozone Depletion Potentials, and Global Warming Potentials"
886:"Good news from the stratosphere, sort of: Accumulating HCFCs won't stop ozone-hole mending"
360:
287:
191:
491:
127:
913:
224:
149:
83:
622:
614:
610:
570:
495:
412:
669:
1008:
523:
349:
339:
138:
729:
ANSI/ASHRAE Standard 34-2004, Designation and Safety
Classification of Refrigerants
696:
821:"Overview of HCFC Consumption and Available Alternatives For Article 5 Countries"
171:
587:
499:
461:
318:
118:
736:
776:
578:
490:(HCFC) family of man-made compounds that contribute significantly to both
547:"processes that result in the transformation or destruction of the HCFCs"
480:
477:
468:
17:
582:
HCFC-142b measured by the
Advanced Global Atmospheric Gases Experiment (
158:
968:
474:
465:
916:. NOAA Earth System Research Laboratories/Global Monitoring Division
864:
411:
Except where otherwise noted, data are given for materials in their
577:
569:
503:
106:
96:
502:
where it is also known as R-142b and by trade names including
498:
when released into the environment. It is primarily used as a
208:
722:"Addenda d, j, l, m, and t to ANSI/ASHRAE Standard 34-2004"
574:
Growth of HCFC-142b in Earth's atmosphere since year 1992.
583:
526:
for foam plastics production, and as feedstock to make
429:
621:
ranging 2300 to 5000. This compares to the GWP=1 of
602:(ODP) of 0.07. This is low compared to the ODP=1 of
970:
AR5 Climate Change 2013: The
Physical Science Basis
690:"Safety Data Sheet for 1-Chloro-1,1-difluoroethane"
61:
Freon 142b; R-142b; HCFC-142b; Chlorodifluoroethane
844:U.S. Government Publishing Office Federal Register
800:"Phaseout of Class II Ozone-Depleting Substances"
170:
861:"Production and Sales of Fluorocarbons - AFEAS"
82:
943:Scientific Assessment of Ozone Depletion: 2006
344:−130.8 °C (−203.4 °F; 142.3 K)
8:
678:Institute for Occupational Safety and Health
354:−9.6 °C (14.7 °F; 263.5 K)
223:
148:
126:
26:
985:"Refrigerants - Environmental Properties"
530:(PVDF). It was introduced to replace the
522:HCFC-142b is used as a refrigerant, as a
190:
665:
663:
661:
659:
657:
655:
405:632 °C (1,170 °F; 905 K)
908:
906:
651:
269:
244:
219:
815:
813:
139:
609:HCFC-142b is also a minor but potent
251:Key: BHNZEZWIUMJCGF-UHFFFAOYSA-N
7:
1030:Ozone-depleting chemical substances
545:stated that HCFCs could be used in
161:
25:
947:World Meteorological Organization
617:of about 17 years and a 100-year
248:InChI=1S/C2H3ClF2/c1-2(3,4)5/h1H3
419:
308:
305:
299:
33:
804:Environmental Protection Agency
415:(at 25 °C , 100 kPa).
378:Occupational safety and health
293:
1:
635:IPCC list of greenhouse gases
28:1-Chloro-1,1-difluoroethane
586:) in the lower atmosphere (
454:1-Chloro-1,1-difluoroethane
52:1-Chloro-1,1-difluoroethane
1046:
541:In the United States, the
538:within many applications.
464:with the chemical formula
826:. ICF International. 2008
766:"Listing of Refrigerants"
674:GESTIS Substance Database
600:ozone depletion potential
510:Physiochemical properties
409:
375:
370:
280:
260:
235:
66:
58:
46:
41:
32:
1020:Hydrochlorofluorocarbons
619:global warming potential
989:The Engineering ToolBox
945:. Geneva, Switzerland:
613:. It has an estimated
528:polyvinylidene fluoride
488:hydrochlorofluorocarbon
773:Andy's HVAC/R Web Page
604:trichlorofluoromethane
595:
575:
850:Pages 67172 - 67174 .
581:
573:
566:Environmental effects
486:. It belongs to the
640:List of refrigerants
48:Preferred IUPAC name
764:Schoen, J. Andrew,
532:chlorofluorocarbons
361:Solubility in water
326: g·mol
29:
702:on 24 October 2018
596:
592:parts-per-trillion
576:
553:Production history
442:Infobox references
27:
846:2005 November 4,
450:Chemical compound
448:
447:
204:CompTox Dashboard
108:Interactive image
16:(Redirected from
1037:
1025:Greenhouse gases
999:
998:
996:
995:
981:
975:
974:
964:
958:
957:
955:
953:
940:
931:
925:
924:
922:
921:
910:
901:
900:
898:
897:
888:. Archived from
882:
876:
875:
873:
872:
863:. Archived from
857:
851:
841:
835:
834:
832:
831:
825:
817:
808:
807:
796:
790:
789:
788:
787:
781:
775:, archived from
770:
761:
755:
754:
752:
751:
745:
739:. Archived from
726:
718:
712:
711:
709:
707:
701:
695:. Archived from
694:
686:
680:
667:
432:
426:
423:
422:
325:
310:
307:
301:
295:
288:Chemical formula
228:
227:
212:
210:
194:
174:
163:
152:
141:
130:
110:
86:
37:
30:
21:
1045:
1044:
1040:
1039:
1038:
1036:
1035:
1034:
1005:
1004:
1003:
1002:
993:
991:
983:
982:
978:
966:
965:
961:
951:
949:
938:
933:
932:
928:
919:
917:
912:
911:
904:
895:
893:
884:
883:
879:
870:
868:
859:
858:
854:
842:
838:
829:
827:
823:
819:
818:
811:
806:. 22 July 2015.
798:
797:
793:
785:
783:
779:
768:
763:
762:
758:
749:
747:
743:
724:
720:
719:
715:
705:
703:
699:
692:
688:
687:
683:
668:
653:
648:
631:
568:
555:
520:
512:
492:ozone depletion
485:
473:
451:
444:
439:
438:
437: ?)
428:
424:
420:
416:
402:
399:
388:
363:
323:
313:
304:
298:
290:
276:
273:
268:
267:
256:
253:
252:
249:
243:
242:
231:
213:
206:
197:
177:
164:
133:
113:
100:
89:
76:
62:
54:
53:
23:
22:
15:
12:
11:
5:
1043:
1041:
1033:
1032:
1027:
1022:
1017:
1007:
1006:
1001:
1000:
976:
973:. p. 731.
959:
926:
902:
877:
852:
836:
809:
791:
756:
713:
681:
650:
649:
647:
644:
643:
642:
637:
630:
627:
623:carbon dioxide
611:greenhouse gas
567:
564:
554:
551:
519:
516:
511:
508:
496:global warming
483:
471:
449:
446:
445:
440:
418:
417:
413:standard state
410:
407:
406:
403:
396:
393:
392:
389:
386:
383:
382:
373:
372:
368:
367:
364:
359:
356:
355:
352:
346:
345:
342:
336:
335:
334:Colorless gas
332:
328:
327:
321:
315:
314:
311:
302:
296:
291:
286:
283:
282:
278:
277:
275:
274:
271:
263:
262:
261:
258:
257:
255:
254:
250:
247:
246:
238:
237:
236:
233:
232:
230:
229:
216:
214:
202:
199:
198:
196:
195:
187:
185:
179:
178:
176:
175:
167:
165:
157:
154:
153:
143:
135:
134:
132:
131:
123:
121:
115:
114:
112:
111:
103:
101:
94:
91:
90:
88:
87:
79:
77:
72:
69:
68:
64:
63:
60:
56:
55:
51:
50:
44:
43:
39:
38:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1042:
1031:
1028:
1026:
1023:
1021:
1018:
1016:
1013:
1012:
1010:
990:
986:
980:
977:
972:
971:
967:"Chapter 8".
963:
960:
948:
944:
937:
930:
927:
915:
909:
907:
903:
892:on 2016-03-03
891:
887:
881:
878:
867:on 2015-09-28
866:
862:
856:
853:
849:
845:
840:
837:
822:
816:
814:
810:
805:
801:
795:
792:
782:on 2009-03-19
778:
774:
767:
760:
757:
746:on 2011-10-12
742:
738:
734:
730:
723:
717:
714:
698:
691:
685:
682:
679:
675:
671:
666:
664:
662:
660:
658:
656:
652:
645:
641:
638:
636:
633:
632:
628:
626:
624:
620:
616:
612:
607:
605:
601:
593:
589:
585:
580:
572:
565:
563:
559:
552:
550:
548:
544:
539:
537:
533:
529:
525:
524:blowing agent
517:
515:
509:
507:
505:
501:
497:
493:
489:
482:
479:
476:
470:
467:
463:
459:
455:
443:
436:
431:
414:
408:
404:
401:
395:
394:
390:
385:
384:
380:
379:
374:
369:
365:
362:
358:
357:
353:
351:
350:Boiling point
348:
347:
343:
341:
340:Melting point
338:
337:
333:
330:
329:
322:
320:
317:
316:
292:
289:
285:
284:
279:
270:
266:
259:
245:
241:
234:
226:
222:
221:DTXSID9023960
218:
217:
215:
205:
201:
200:
193:
189:
188:
186:
184:
181:
180:
173:
169:
168:
166:
160:
156:
155:
151:
147:
144:
142:
140:ECHA InfoCard
137:
136:
129:
125:
124:
122:
120:
117:
116:
109:
105:
104:
102:
98:
93:
92:
85:
81:
80:
78:
75:
71:
70:
65:
57:
49:
45:
40:
36:
31:
19:
1015:Refrigerants
992:. Retrieved
988:
979:
969:
962:
950:. Retrieved
942:
929:
918:. Retrieved
894:. Retrieved
890:the original
880:
869:. Retrieved
865:the original
855:
839:
828:. Retrieved
794:
784:, retrieved
777:the original
772:
759:
748:. Retrieved
741:the original
728:
716:
704:. Retrieved
697:the original
684:
608:
597:
560:
556:
546:
540:
521:
518:Applications
513:
457:
453:
452:
398:Autoignition
387:Main hazards
376:
67:Identifiers
59:Other names
914:"HCFC-142b"
706:24 February
588:troposphere
500:refrigerant
400:temperature
391:Asphyxiant
381:(OHS/OSH):
331:Appearance
281:Properties
146:100.000.811
1009:Categories
994:2016-09-12
920:2021-02-12
896:2018-02-13
871:2018-02-13
830:2021-02-12
786:2011-12-17
750:2011-12-18
646:References
462:haloalkane
319:Molar mass
272:CC(F)(F)Cl
192:FUC3XHA6GY
119:ChemSpider
95:3D model (
74:CAS Number
952:9 October
737:1041-2336
458:HCFC-142b
18:HCFC-142b
629:See also
615:lifetime
371:Hazards
676:of the
672:in the
670:Record
506:-142b.
460:) is a
435:what is
433: (
366:Slight
159:PubChem
84:75-68-3
735:
430:verify
427:
324:100.49
265:SMILES
42:Names
939:(PDF)
824:(PDF)
780:(PDF)
769:(PDF)
744:(PDF)
725:(PDF)
700:(PDF)
693:(PDF)
584:AGAGE
504:Freon
240:InChI
97:JSmol
954:2016
733:ISSN
708:2018
536:HFCs
494:and
183:UNII
172:9625
128:6148
543:EPA
209:EPA
162:CID
1011::
987:.
941:.
905:^
812:^
802:.
771:,
727:.
654:^
478:Cl
306:Cl
997:.
956:.
923:.
899:.
874:.
833:.
753:.
710:.
594:.
484:2
481:F
475:C
472:3
469:H
466:C
456:(
425:Y
312:2
309:F
303:3
300:H
297:2
294:C
211:)
207:(
99:)
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
