ความดันไอของธาตุ (หน้าข้อมูล)

เวเปอร์เพรสเชอร์

	1 Pa	10 Pa	100 Pa	1 kPa	10 kPa	100 kPa
1 H ไฮโดรเจน
use (T/K)					15	20
CRC (T/°C)					-258.6	-252.8
2 He ฮีเลียม
use (T/K)					3	4
CRC (T/°C)					-270.6	-268.9
3 Li ลิเทียม
use (T/K)	797	885	995	1144	1337	1610
CRC (T/°C)	524.3	612.3	722.1	871.2	1064.3	1337.1
CR2	solid, 298 K to m.p.: log (P/Pa) = 10.673 - 8310 / (T/K)
CR2	liquid, m.p. to 1000 K: log (P/Pa) = 10.061 - 8023 / (T/K)
	797.4	885.4	995.3
4 Be เบริลเลียม
use (T/K)	1462	1608	1791	2023	2327	2742
CRC (T/°C)	1189 (s)	1335	1518	1750	2054	2469
CR2	solid, 298 K to m.p.: log (P/Pa) = 13.048 - 17020 / (T/K) - 0.4440 log (T/K)
	1461.8
CR2	liquid, m.p. to 1800 K: log (P/Pa) = 10.792 - 15731 / (T/K)
		1606.5	1789.2
5 B โบรอน
use (T/K)	2348	2562	2822	3141	3545	4072
CRC (T/°C)	2075	2289	2549	2868	3272	3799
6 C คาร์บอน (แกรไฟต์)
use (T/K)		2839	3048	3289	3572	3908
CRC (T/°C)		2566 (s)	2775 (s)	3016 (s)	3299 (s)	3635 (s)
7 N ไนโตรเจน
use (T/K)	37	41	46	53	62	77
CRC (T/°C)	-236 (s)	-232 (s)	-226.8 (s)	-220.2 (s)	-211.1 (s)	-195.9
8 O ออกซิเจน
use (T/K)				61	73	90
CRC (T/°C)				-211.9	-200.5	-183.1
9 F ฟลูออรีน
use (T/K)	38	44	50	58	69	85
CRC (T/°C)	-235 (s)	-229.5 (s)	-222.9 (s)	-214.8	-204.3	-188.3
10 Ne นีออน
use (T/K)	12	13	15	18	21	27
CRC (T/°C)	-261 (s)	-260 (s)	-258 (s)	-255 (s)	-252 (s)	-246.1
11 Na โซเดียม
use (T/K)	554	617	697	802	946	1153
CRC (T/°C)	280.6	344.2	424.3	529	673	880.2
CR2	solid, 298 K to m.p.: log (P/Pa) = 10.304 - 5603 / (T/K)
CR2	liquid, m.p. to 700 K: log (P/Pa) = 9.710 - 5377 / (T/K)
	553.8	617.3	697.4
12 Mg แมกนีเซียม
use (T/K)	701	773	861	971	1132	1361
CRC (T/°C)	428 (s)	500 (s)	588 (s)	698	859	1088
CR2	solid, 298 K to m.p.: log (P/Pa) = 13.495 - 7813 / (T/K) - 0.8253 log (T/K)
	700.9	772.7	861.2
13 Al อะลูมิเนียม
use (T/K)	1482	1632	1817	2054	2364	2790
CRC (T/°C)	1209	1359	1544	1781	2091	2517
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.465 - 17342 / (T/K) - 0.7927 log (T/K)
CR2	liquid, m.p. to 1800 K: log (P/Pa) = 10.917 - 16211 / (T/K)
	1484.9	1634.7	1818.0
14 Si ซิลิคอน
use (T/K)	1908	2102	2339	2636	3021	3537
CRC (T/°C)	1635	1829	2066	2363	2748	3264
15 P ฟอสฟอรัส (ขาว)
use (T/K)	279	307	342	388	453	549
CRC (T/°C)	6 (s)	34 (s)	69	115	180	276
15 P ฟอสฟอรัส (แดง)
use (T/K)	455	489	529	576	635	704
CRC (T/°C)	182 (s)	216 (s)	256 (s)	303 (s)	362 (s)	431 (s)
16 S กำมะถัน
use (T/K)	375	408	449	508	591	717
CRC (T/°C)	102 (s)	135	176	235	318	444
17 Cl คลอรีน
use (T/K)	128	139	153	170	197	239
CRC (T/°C)	-145 (s)	-133.7 (s)	-120.2 (s)	-103.6 (s)	-76.1	-34.2
18 Ar อาร์กอน
use (T/K)		47	53	61	71	87
CRC (T/°C)		-226.4 (s)	-220.3 (s)	-212.4 (s)	-201.7 (s)	-186.0
19 K โพแทสเซียม
use (T/K)	473	530	601	697	832	1029
CRC (T/°C)	200.2	256.5	328	424	559	756.2
CR2	solid, 298 K to m.p.: log (P/Pa) = 9.967 - 4646 / (T/K)
CR2	liquid, m.p. to 600 K: log (P/Pa) = 9.408 - 4453 / (T/K)
	473.3	529.6	601.1
20 Ca แคลเซียม
use (T/K)	864	956	1071	1227	1443	1755
CRC (T/°C)	591 (s)	683 (s)	798 (s)	954	1170	1482
CR2	solid, 298 K to m.p.: log (P/Pa) = 15.133 - 9517 / (T/K) - 1.4030 log (T/K)
	864.2	956.4	1071.5
21 Sc สแคนเดียม
use (T/K)	1645	1804	(2006)	(2266)	(2613)	(3101)
CRC (T/°C)	1372 (s)	1531 (s)	1733 (i)	1993 (i)	2340 (i)	2828 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 11.656 - 19721 / (T/K) + 0.2885 log (T/K) - 0.3663 (T/K)-3
CR2	liquid, m.p. to 2000 K: log (P/Pa) = 10.801 - 17681 / (T/K)
22 Ti ไทเทเนียม
use (T/K)	1982	2171	(2403)	2692	3064	3558
CRC (T/°C)	1709	1898	2130 (e)	2419	2791	3285
CR2	solid, 298 K to m.p.: log (P/Pa) = 16.931 - 24991 / (T/K) - 1.3376 log (T/K)
CR2	liquid, m.p. to 2400 K: log (P/Pa) = 11.364 - 22747 / (T/K)
	2001.7	2194.8
23 V วาเนเดียม
use (T/K)	2101	2289	2523	2814	3187	3679
CRC (T/°C)	1828 (s)	2016	2250	2541	2914	3406
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.750 - 27132 / (T/K) - 0.5501 log (T/K)
	2099.6
CR2	liquid, m.p. to 2500 K: log (P/Pa) = 11.935 - 25011 / (T/K)
		2287.2	2517.5
24 Cr โครเมียม
use (T/K)	1656	1807	1991	2223	2530	2942
CRC (T/°C)	1383 (s)	1534 (s)	1718 (s)	1950	2257	2669
CR2	solid, 298 K to 2000 K: log (P/Pa) = 11.806 - 20733 / (T/K) + 0.4391 log (T/K) - 0.4094 (T/K)-3
25 Mn แมงกานีส
use (T/K)	1228	1347	1493	1691	1955	2333
CRC (T/°C)	955 (s)	1074 (s)	1220 (s)	1418	1682	2060
CR2	solid, 298 K to m.p.: log (P/Pa) = 17.811 - 15097 / (T/K) - 1.7896 log (T/K)
	1229.2	1346.6	1490.0
26 Fe เหล็ก
use (T/K)	1728	1890	2091	2346	2679	3132
CRC (T/°C)	1455 (s)	1617	1818	2073	2406	2859
CR2	solid, 298 K to m.p.: log (P/Pa) = 12.106 - 21723 / (T/K) + 0.4536 log (T/K) - 0.5846 (T/K)-3
CR2	liquid, m.p. to 2100 K: log (P/Pa) = 11.353 - 19574 / (T/K)
		1890.7	2092.8
27 Co โคบอลต์
use (T/K)	1790	1960	2165	2423	2755	3198
CRC (T/°C)	1517	1687	1892	2150	2482	2925
CR2	solid, 298 K to m.p.: log (P/Pa) = 15.982 - 22576 / (T/K) - 1.0280 log (T/K)
CR2	liquid, m.p. to 2150 K: log (P/Pa) = 11.494 - 20578 / (T/K)
	1790.3	1960.9	2167.5
28 Ni นิกเกิล
use (T/K)	1783	1950	2154	2410	2741	3184
CRC (T/°C)	1510	1677	1881	2137	2468	2911
CR2	solid, 298 K to m.p.: log (P/Pa) = 15.563 - 22606 / (T/K) - 0.8717 log (T/K)
CR2	liquid, m.p. to 2150 K: log (P/Pa) = 11.672 - 20765 / (T/K)
	1779.0	1945.7	2146.9
29 Cu ทองแดง
use (T/K)	1509	1661	1850	2089	2404	2836
CRC (T/°C)	1236	1388	1577	1816	2131	2563
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.129 - 17748 / (T/K) - 0.7317 log (T/K)
CR2	liquid, m.p. to 1850 K: log (P/Pa) = 10.855 - 16415 / (T/K)
	1512.2	1665.7	1853.8
30 Zn สังกะสี
use (T/K)	610	670	750	852	990	(1185)
CRC (T/°C)	337 (s)	397 (s)	477	579	717	912 (e)
CR2	solid, 298 K to m.p.: log (P/Pa) = 11.108 - 6776 / (T/K)
	610.0	670.4
CR2	liquid, m.p. to 750 K: log (P/Pa) = 10.384 - 6286 / (T/K)
			749.8
31 Ga แกลเลียม
use (T/K)	1310	1448	1620	1838	2125	2518
CRC (T/°C)	1037	1175	1347	1565	1852	2245
CR2	solid, 298 K to m.p.: log (P/Pa) = 11.663 - 14208 / (T/K)
CR2	liquid, m.p. to 1600 K: log (P/Pa) = 11.760 - 13984 / (T/K) - 0.3413 log (T/K)
	1307.4	1444.4	1613.8
32 Ge เจอร์เมเนียม
use (T/K)	1644	1814	2023	2287	2633	3104
CRC (T/°C)	1371	1541	1750	2014	2360	2831
33 As สารหนู
use (T/K)	553	596	646	706	781	874
CRC (T/°C)	280 (s)	323 (s)	373 (s)	433 (s)	508 (s)	601 (s)
34 Se ซีลีเนียม
use (T/K)	500	552	617	704	813	958
CRC (T/°C)	227	279	344	431	540	685
35 Br โบรมีน
use (T/K)	185	201	220	244	276	332
CRC (T/°C)	-87.7 (s)	-71.8 (s)	-52.7 (s)	-29.3 (s)	2.5	58.4
36 Kr คริปทอน
use (T/K)	59	65	74	84	99	120
CRC (T/°C)	-214.0 (s)	-208.0 (s)	-199.4 (s)	-188.9 (s)	-174.6 (s)	-153.6
37 Rb รูบิเดียม
use (T/K)	434	486	552	641	769	958
CRC (T/°C)	160.4	212.5	278.9	368	496.1	685.3
CR2	solid, 298 K to m.p.: log (P/Pa) = 9.863 - 4215 / (T/K)
CR2	liquid, m.p. to 550 K: log (P/Pa) = 9.318 - 4040 / (T/K)
	433.6	485.7	552.1
38 Sr สตรอนเชียม
use (T/K)	796	882	990	1139	1345	1646
CRC (T/°C)	523 (s)	609 (s)	717 (s)	866	1072	1373
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.232 - 8572 / (T/K) - 1.1926 log (T/K)
	795.7	882.0	989.9
39 Y อิตเทรียม
use (T/K)	1883	2075	(2320)	(2627)	(3036)	(3607)
CRC (T/°C)	1610.1	1802.3	2047 (i)	2354 (i)	2763 (i)	3334 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.741 - 22306 / (T/K) - 0.8705 log (T/K)
CR2	liquid, m.p. to 2300 K: log (P/Pa) = 10.801 - 20341 / (T/K)
	1883.3	2075.4
40 Zr เซอร์โคเนียม
use (T/K)	2639	2891	3197	3575	4053	4678
CRC (T/°C)	2366	2618	2924	3302	3780	4405
CR2	solid, 298 K to m.p.: log (P/Pa) = 15.014 - 31512 / (T/K) - 0.7890 log (T/K)
CR2	liquid, m.p. to 2500 K: log (P/Pa) = 11.812 - 30295 / (T/K)
41 Nb ไนโอเบียม
use (T/K)	2942	3207	3524	3910	4393	5013
CRC (T/°C)	2669	2934	3251	3637	4120	4740
CR2	solid, 298 K to 2500 K: log (P/Pa) = 13.828 - 37818 / (T/K) - 0.2575 log (T/K)
42 Mo โมลิบดีนัม
use (T/K)	2742	2994	3312	3707	4212	4879
CRC (T/°C)	2469 (s)	2721	3039	3434	3939	4606
CR2	solid, 298 K to 2500 K: log (P/Pa) = 16.535 - 34626 / (T/K) - 1.1331 log (T/K)
43 Tc เทคนีเชียม
use (T/K)	(2727)	(2998)	(3324)	(3726)	(4234)	(4894)
CRC (T/°C)	2454 (e)	2725 (e)	3051 (e)	3453 (e)	3961 (e)	4621 (e)
44 Ru รูทีเนียม
use (T/K)	2588	2811	3087	3424	3845	4388
CRC (T/°C)	2315 (s)	2538	2814	3151	3572	4115
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.761 - 34154 / (T/K) - 0.4723 log (T/K)
	2597.6
45 Rh โรเดียม
use (T/K)	2288	2496	2749	3063	3405	3997
CRC (T/°C)	2015	2223	2476	2790	3132	3724
CR2	solid, 298 K to m.p.: log (P/Pa) = 15.174 - 29010 / (T/K) - 0.7068 log (T/K)
CR2	liquid, m.p. to 2500 K: log (P/Pa) = 11.808 - 26792 / (T/K)
	2269.0	2478.9
46 Pd แพลเลเดียม
use (T/K)	1721	1897	2117	2395	2753	3234
CRC (T/°C)	1448 (s)	1624	1844	2122	2480	2961
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.508 - 19813 / (T/K) - 0.9258 log (T/K)
	1721.0
CR2	liquid, m.p. to 2100 K: log (P/Pa) = 10.432 - 17899 / (T/K)
		1897.7
47 Ag เงิน
use (T/K)	1283	1413	1575	1782	2055	2433
CRC (T/°C)	1010	1140	1302	1509	1782	2160
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.133 - 14999 / (T/K) - 0.7845 log (T/K)
CR2	liquid, m.p. to 1600 K: log (P/Pa) = 10.758 - 13827 / (T/K)
	1285.3	1417.0	1578.8
48 Cd แคดเมียม
use (T/K)	530	583	654	745	867	1040
CRC (T/°C)	257 (s)	310 (s)	381	472	594	767
CR2	solid, 298 K to m.p.: log (P/Pa) = 10.945 - 5799 / (T/K)
	529.8	583.1
CR2	liquid, m.p. to 650 K: log (P/Pa) = 10.248 - 5392 / (T/K)
			653.7
49 In อินเดียม
use (T/K)	1196	1325	1485	1690	1962	2340
CRC (T/°C)	923	1052	1212	1417	1689	2067
CR2	solid, 298 K to m.p.: log (P/Pa) = 10.997 - 12548 / (T/K)
CR2	liquid, m.p. to 1500 K: log (P/Pa) = 10.380 - 12276 / (T/K)
	1182.7	1308.7	1464.9
50 Sn ดีบุก
use (T/K)	1497	1657	1855	2107	2438	2893
CRC (T/°C)	1224	1384	1582	1834	2165	2620
CR2	solid, 298 K to m.p.: log (P/Pa) = 11.042 - 15710 / (T/K)
CR2	liquid, m.p. to 1850 K: log (P/Pa) = 10.268 - 15332 / (T/K)
	1493.2	1654.3	1854.4
51 Sb พลวง
use (T/K)	807	876	1011	1219	1491	1858
CRC (T/°C)	534 (s)	603 (s)	738	946	1218	1585
52 Te เทลลูเรียม
use (T/K)			(775)	(888)	1042	1266
CRC (T/°C)			502 (e)	615 (e)	768.8	992.4
53 I ไอโอดีน (รอมบิก)
use (T/K)	260	282	309	342	381	457
CRC (T/°C)	-12.8 (s)	9.3 (s)	35.9 (s)	68.7 (s)	108 (s)	184.0
54 Xe ซีนอน
use (T/K)	83	92	103	117	137	165
CRC (T/°C)	-190 (s)	-181 (s)	-170 (s)	-155.8 (s)	-136.6 (s)	-108.4
55 Cs ซีเซียม
use (T/K)	418	469	534	623	750	940
CRC (T/°C)	144.5	195.6	260.9	350.0	477.1	667.0
CR2	solid, 298 K to m.p.: log (P/Pa) = 9.717 - 3999 / (T/K)
CR2	liquid, m.p. to 550 K: log (P/Pa) = 9.171 - 3830 / (T/K)
	417.6	468.7	534.1
56 Ba แบเรียม
use (T/K)	911	1038	1185	1388	1686	2170
CRC (T/°C)	638 (s)	765	912	1115	1413	1897
CR2	solid, 298 K to m.p.: log (P/Pa) = 17.411 - 9690 / (T/K) - 2.2890 log (T/K)
	911.0
CR2	liquid, m.p. to 1200 K: log (P/Pa) = 9.013 - 8163 / (T/K)
		1018.7	1164.0
57 La แลนทานัม
use (T/K)	(2005)	(2208)	(2458)	(2772)	(3178)	(3726)
CRC (T/°C)	1732 (i)	1935 (i)	2185 (i)	2499 (i)	2905 (i)	3453 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 12.469 - 22551 / (T/K) - 0.3142 log (T/K)
CR2	liquid, m.p. to 2450 K: log (P/Pa) = 10.917 - 21855 / (T/K)
	2001.9	2203.8	2450.9
58 Ce ซีเรียม
use (T/K)	1992	2194	2442	2754	3159	3705
CRC (T/°C)	1719	1921	2169	2481	2886	3432
CR2	solid, 298 K to m.p.: log (P/Pa) = 11.145 - 21752 / (T/K)
CR2	liquid, m.p. to 2450 K: log (P/Pa) = 10.617 - 21200 / (T/K)
	1996.8	2204.4	2460.3
59 Pr เพรซีโอดิเมียม
use (T/K)	1771	1973	(2227)	(2571)	(3054)	(3779)
CRC (T/°C)	1497.7	1699.4	1954 (i)	2298 (i)	2781 (i)	3506 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 13.865 - 18720 / (T/K) - 0.9512 log (T/K)
CR2	liquid, m.p. to 2200 K: log (P/Pa) = 9.778 - 17315 / (T/K)
	1770.8	1972.5
60 Nd นีโอดิเมียม
use (T/K)	1595	1774	1998	(2296)	(2715)	(3336)
CRC (T/°C)	1322.3	1501.2	1725.3	2023 (i)	2442 (i)	3063 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.002 - 17264 / (T/K) - 0.9519 log (T/K)
CR2	liquid, m.p. to 2000 K: log (P/Pa) = 9.918 - 15824 / (T/K)
	1595.5	1774.4	1998.5
62 Sm ซาแมเรียม
use (T/K)	1001	1106	1240	(1421)	(1675)	(2061)
CRC (T/°C)	728 (s)	833 (s)	967 (s)	1148 (i)	1402 (i)	1788 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.994 - 11034 / (T/K) - 1.3287 log (T/K)
	1002.5	1109.2	1242.2
63 Eu ยูโรเพียม
use (T/K)	863	957	1072	1234	1452	1796
CRC (T/°C)	590 (s)	684 (s)	799 (s)	961	1179	1523
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.246 - 9459 / (T/K) - 1.1661 log (T/K)
	874.6	968.8	1086.5
64 Gd แกโดลิเนียม
use (T/K)	(1836)	(2028)	(2267)	(2573)	(2976)	(3535)
CRC (T/°C)	1563 (i)	1755 (i)	1994 (i)	2300 (i)	2703 (i)	3262 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 13.350 - 20861 / (T/K) - 0.5775 log (T/K)
CR2	liquid, m.p. to 2250 K: log (P/Pa) = 10.563 - 19389 / (T/K)
	1835.6	2027.5	2264.3
65 Tb เทอร์เบียม
use (T/K)	1789	1979	(2201)	(2505)	(2913)	(3491)
CRC (T/°C)	1516.1	1706.1	1928 (i)	2232 (i)	2640 (i)	3218 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.516 - 20457 / (T/K) - 0.9247 log (T/K)
CR2	liquid, m.p. to 2200 K: log (P/Pa) = 10.417 - 18639 / (T/K)
	1789.3	1979.3	2214.4
66 Dy ดิสโพรเซียม
use (T/K)	1378	1523	(1704)	(1954)	(2304)	(2831)
CRC (T/°C)	1105 (s)	1250 (s)	1431 (i)	1681 (i)	2031 (i)	2558 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.585 - 15336 / (T/K) - 1.1114 log (T/K)
	1382.3	1526.5
67 Ho โฮลเมียม
use (T/K)	1432	1584	(1775)	(2040)	(2410)	(2964)
CRC (T/°C)	1159 (s)	1311 (s)	1502 (i)	1767 (i)	2137 (i)	2691 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.791 - 15899 / (T/K) - 1.1753 log (T/K)
	1434.8	1585.2
68 Er เออร์เบียม
use (T/K)	1504	1663	(1885)	(2163)	(2552)	(3132)
CRC (T/°C)	1231 (s)	1390 (s)	1612 (i)	1890 (i)	2279 (i)	2859 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.922 - 16642 / (T/K) - 1.2154 log (T/K)
	1504.7	1663.0
CR2	liquid, m.p. to 1900 K: log (P/Pa) = 9.674 - 14380 / (T/K)
			1873.9
69 Tm ทูเลียม
use (T/K)	1117	1235	1381	1570	(1821)	(2217)
CRC (T/°C)	844 (s)	962 (s)	1108 (s)	1297 (s)	1548 (i)	1944 (i)
CR2	solid, 298 K to 1400 K: log (P/Pa) = 13.888 - 12270 / (T/K) - 0.9564 log (T/K)
	1118.3	1235.5	1381.0
70 Yb อิตเทอร์เบียม
use (T/K)	736	813	910	1047	(1266)	(1465)
CRC (T/°C)	463 (s)	540 (s)	637 (s)	774 (s)	993 (i)	1192 (i)
CR2	solid, 298 K to 900 K: log (P/Pa) = 14.117 - 8111 / (T/K) - 1.0849 log (T/K)
	737.0	814.4
71 Lu ลูทีเชียม
use (T/K)	1906	2103	2346	(2653)	(3072)	(3663)
CRC (T/°C)	1633 (s)	1829.8	2072.8	2380 (i)	2799 (i)	3390 (i)
CR2	solid, 298 K to m.p.: log (P/Pa) = 13.799 - 22423 / (T/K) - 0.6200 log (T/K)
	1905.9
CR2	liquid, m.p. to 2350 K: log (P/Pa) = 10.654 - 20302 / (T/K)
		2103.0	2346.0
72 Hf แฮฟเนียม
use (T/K)	2689	2954	3277	3679	4194	4876
CRC (T/°C)	2416	2681	3004	3406	3921	4603
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.451 - 32482 / (T/K) - 0.6735 log (T/K)
73 Ta แทนทาลัม
use (T/K)	3297	3597	3957	4395	4939	5634
CRC (T/°C)	3024	3324	3684	4122	4666	5361
CR2	solid, 248 K to 2500 K: log (P/Pa) = 21.813 - 41346 / (T/K) - 3.2152 log (T/K) + 0.7437 (T/K)-3
74 W ทังสเตน
use (T/K)	3477	3773	4137	4579	5127	5823
CRC (T/°C)	3204 (s)	3500	3864	4306	4854	5550
CR2	solid, 298 K to 2350 K: log (P/Pa) = 7.951 - 44094 / (T/K) + 1.3677 log (T/K)
CR2	solid, 2200 K to 2500 K: log (P/Pa) = -49.521 - 57687 / (T/K) - 12.2231 log (T/K)
75 Re รีเนียม
use (T/K)	3303	3614	4009	4500	5127	5954
CRC (T/°C)	3030 (s)	3341	3736	4227	4854	5681
CR2	solid, 298 K to 2500 K: log (P/Pa) = 16.549 - 40726 / (T/K) - 1.1629 log (T/K)
76 Os ออสเมียม
use (T/K)	3160	3423	3751	4148	4638	5256
CRC (T/°C)	2887 (s)	3150	3478	3875	4365	4983
CR2	solid, 298 K to 2500 K: log (P/Pa) = 14.425 - 41198 / (T/K) - 0.3896 log (T/K)
77 Ir อิริเดียม
use (T/K)	2713	2957	3252	3614	4069	4659
CRC (T/°C)	2440 (s)	2684	2979	3341	3796	4386
CR2	solid, 298 K to 2500 K: log (P/Pa) = 15.512 - 35099 / (T/K) - 0.7500 log (T/K)
78 Pt แพลทินัม
use (T/K)	2330	(2550)	2815	3143	3556	4094
CRC (T/°C)	2057	2277 (e)	2542	2870	3283	3821
CR2	solid, 298 K to m.p.: log (P/Pa) = 9.888 - 29387 / (T/K) + 1.1039 log (T/K) - 0.4527 (T/K)-3
CR2	liquid, m.p. to 2500 K: log (P/Pa) = 11.392 - 26856 / (T/K)
	2357.4
79 Au ทอง
use (T/K)	1646	1814	2021	2281	2620	3078
CRC (T/°C)	1373	1541	1748	2008	2347	2805
CR2	solid, 298 K to m.p.: log (P/Pa) = 14.158 - 19343 / (T/K) - 0.7479 log (T/K)
CR2	liquid, m.p. to 2050 K: log (P/Pa) = 10.838 - 18024 / (T/K)
	1663.0	1832.1	2039.4
80 Hg ปรอท
use (T/K)	315	350	393	449	523	629
CRC (T/°C)	42.0	76.6	120.0	175.6	250.3	355.9
CR2	liquid, 298 K to 400 K: log (P/Pa) = 10.122 - 3190 / (T/K)
	315.2	349.7	392.8
81 Tl แทลเลียม
use (T/K)	882	977	1097	1252	1461	1758
CRC (T/°C)	609	704	824	979	1188	1485
CR2	solid, 298 K to m.p.: log (P/Pa) = 10.977 - 9447 / (T/K)
CR2	liquid, m.p. to 1100 K: log (P/Pa) = 10.265 - 9037 / (T/K)
	880.4	975.4	1093.4
82 Pb ตะกั่ว
use (T/K)	978	1088	1229	1412	1660	2027
CRC (T/°C)	705	815	956	1139	1387	1754
CR2	solid, 298 K to m.p.: log (P/Pa) = 10.649 - 10143 / (T/K)
CR2	liquid, m.p. to 1200 K: log (P/Pa) = 9.917 - 9701 / (T/K)
	978.2	1087.9
83 Bi บิสมัท
use (T/K)	941	1041	1165	1325	1538	1835
CRC (T/°C)	668	768	892	1052	1265	1562
84 Po พอโลเนียม
use (T/K)				(846)	1003	1236
CRC (T/°C)				573 (e)	730.2	963.3
85 At แอสทาทีน
use (T/K)	361	392	429	475	531	607
CRC (T/°C)	88 (s)	119 (s)	156 (s)	202 (s)	258 (s)	334
86 Rn เรดอน
use (T/K)	110	121	134	152	176	211
CRC (T/°C)	-163 (s)	-152 (s)	-139 (s)	-121.4 (s)	-97.6 (s)	-62.3
87 Fr แฟรนเซียม
use (T/K)	(404)	(454)	(519)	(608)	(738)	(946)
CRC (T/°C)	131 (e)	181 (e)	246 (e)	335 (e)	465 (e)	673 (e)
88 Ra เรเดียม
use (T/K)	819	906	1037	1209	1446	1799
CRC (T/°C)	546 (s)	633 (s)	764	936	1173	1526
90 Th ทอเรียม
use (T/K)	2633	2907	3248	3683	4259	5055
CRC (T/°C)	2360	2634	2975	3410	3986	4782
CR2	solid, 298 K to m.p.: log (P/Pa) = 13.674 - 31483 / (T/K) - 0.5288 log (T/K)
CR2	liquid, m.p. to 2500 K: log (P/Pa) = -13.447 - 24569 / (T/K) + 6.6473 log (T/K)
91 Pa โพรแทกทิเนียม
CR2	solid, 298 K to m.p.: log (P/Pa) = 15.558 - 34869 / (T/K) - 1.0075 log (T/K)
CR2	liquid, m.p. to 2500 K: log (P/Pa) = 11.183 - 32874 / (T/K)
92 U ยูเรเนียม
use (T/K)	2325	2564	2859	3234	3727	4402
CRC (T/°C)	2052	2291	2586	2961	3454	4129
CR2	solid, 298 K to m.p.: log (P/Pa) = 5.776 - 27729 / (T/K) + 2.6982 log (T/K) - 1.5471 (T/K)-3
CR2	liquid, m.p. to 2500 K: log (P/Pa) = 25.741 - 28776 / (T/K) - 4.0962 log (T/K)
	2422.6
93 Np เนปทูเนียม
use (T/K)	2194	2437
CR2	solid, 298 K to m.p.: log (P/Pa) = 24.649 - 24886 / (T/K) - 3.9991 log (T/K)
CR2	liquid, m.p. to 2500 K: log (P/Pa) = 15.082 - 23378 / (T/K) - 1.3250 log (T/K)
	2194.1	2436.6
94 Pu พลูโทเนียม
use (T/K)	1756	1953	2198	2511	2926	3499
CRC (T/°C)	1483	1680	1925	2238	2653	3226
CR2	solid, 500 K to m.p.: log (P/Pa) = 23.864 - 18460 / (T/K) - 4.4720 log (T/K)
CR2	solid, 298 K to 600 K: log (P/Pa) = 31.166 - 19162 / (T/K) - 6.6675 log (T/K)
CR2	liquid, m.p. to 2450 K: log (P/Pa) = 8.672 - 16658 / (T/K)
	1920.9	2171.3
95 Am อะเมริเซียม
use (T/K)	1239	1356
CR2	solid, 298 K to m.p.: log (P/Pa) = 16.317 - 15059 / (T/K) - 1.3449 log (T/K)
	1238.7	1356.1
96 Cm คูเรียม
use (T/K)	1788	1982
CR2	solid, 298 K to m.p.: log (P/Pa) = 13.375 - 20364 / (T/K) - 0.5770 log (T/K)
CR2	liquid, m.p. to 2200 K: log (P/Pa) = 10.229 - 18292 / (T/K)
	1788.2	1982.0

Notes

• Values are given in terms of temperature necessary to reach the specified pressure.
• Ref. CRC: Uncertainties of several degrees should generally be assumed. (e) Indicates extrapolated values beyond the region of experimental data, subject to greater uncertainty. (i) Indicates values calculated from ideal gas thermodynamic functions. (s) Indicates the substance is solid at this temperature.
• Ref. CR2: The equations reproduce the observed pressures to an accuracy of ±5% or better.
• A conversion factor of log 101325 is included into the original first coefficient of the equations on this page to provide the pressure in pascals. Valid results within the quoted ranges from most equations are included in the table for comparison.

References

CRC

As quoted from various sources in an online version of:

• David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition. CRC Press. Boca Raton, Florida, 2003; Section 6, Fluid Properties; Vapor Pressure

CR2

Vapor pressure equation and coefficients from this source in an online version of: David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition. CRC Press. Boca Raton, Florida, 2003; Section 4, Properties of the Elements and Inorganic Compounds; Vapor Pressure of the Metallic Elements

• Alcock, C. B., Itkin, V. P., and Horrigan, M. K., Canadian Metallurgical Quarterly, 23, 309, 1984.