T K		Vapor Pressure kPa	B(T) cm3·mol-1	dB/dT · T cm3·mol-1	C(T) cm6·mol-2	dC/dT · T cm6·mol-2	mW/(m·K)	µPa·s
Estimated Uncertainty	1%/0.1%	1%	Gas densities are calculated to better than 0.1% over the temperature and pressure ranges of the reference.				10%	10%
Reference	[4]/[5]	[6]	[5]	[5]	[5]	[5]	[5]	[5]
205	11.84	0.19	-2001.6	5951.2	-4658932	47121716	-	-
210	12.00	0.34	-1864.5	5441.0	-3653771	36754361	-	-
215	12.16	0.58	-1741.8	4994.1	-2884907	28924191	5.2	14.17
220	12.66	0.95	-1631.6	4600.8	-2291407	22949084	5.4	14.41
225	12.78	1.53	-1532.2	4252.9	-1829413	18345717	5.6	14.64
230	12.90	2.39	-1442.1	3943.9	-1466994	14767456	5.7	14.88
235	13.03	3.62	-1360.3	3668.3	-1180656	11962851	5.9	15.11
240	13.15	5.37	-1285.7	3421.6	-952936	9747555	6.0	15.35
245	13.26	7.79	-1217.5	3199.8	-770738	7985050	6.2	15.58
250	13.38	11.08	-1154.9	2999.9	-624150	6573288	6.3	15.81
255	13.49	15.47	-1097.3	2819.0	-505611	5435305	6.5	16.05
260	13.60	21.22	-1044.2	2654.8	-409306	4512569	6.6	16.28
265	13.71	28.66	-995.0	2505.4	-330733	3760214	6.8	16.51
270	13.82	38.15	-949.5	2369.0	-266380	3143590	6.9	16.75
275	13.92	50.09	-907.2	2244.1	-213492	2635750	7.1	16.98
280	14.03	64.94	-867.8	2129.6	-169892	2215594	7.3	17.21
285	14.13	83.21	-831.1	2024.3	-133851	1866498	7.4	17.44
290	14.23	105.45	-796.7	1927.2	-103990	1575285	7.6	17.67
295	14.33	-	-764.5	1837.5	-79201	1331447	7.7	17.91
300	14.42	-	-734.4	1754.5	-58589	1126565	7.9	18.14
305	14.52	-	-706.0	1677.4	-41432	953852	8.0	18.37
310	14.61	-	-679.3	1605.9	-27139	807815	8.2	18.60
315	14.70	-	-654.2	1539.2	-15228	683985	8.3	18.83
320	14.78	-	-630.4	1477.0	-5306	578711	8.5	19.06
340	15.12	-	-547.5	1265.9	20230	290555	8.6	19.29
360	15.42	-	-480.0	1101.2	31966	134118	9.2	20.21
380	15.68	-	-424.1	970.1	36670	47535	9.8	21.12
400	15.92	-	-377.1	863.9	37762	-659	10.4	22.03
420	16.13	-	-337.1	776.4	37023	-27161	11.0	22.93
440	16.35	-	-302.7	703.3	35400	-41155	11.6	23.83
450	16.45	-	-287.3	671.2	34428	-45187	12.1	24.73
460	16.53	-	-272.9	641.7	33403	-47843	12.4	25.17
480	16.70	-	-246.7	589.0	31305	-50243	12.7	25.62
500	16.86	-	-223.6	543.6	29249	-50142	13.3	26.51
550	17.24	-	-176.2	453.8	24678	-44989	13.8	27.39
600	17.63	-	-139.7	387.8	21064	-37951	15.2	29.58
650	18.09	-	-110.8	337.5	18293	-31353	16.6	31.75
700	18.69	-	-87.2	298.0	16181	-25746	17.9	33.89
750	19.49	-	-67.8	266.3	14567	-21142	19.2	36.01
800	20.53	-	-51.5	240.3	13326	-17405	20.5	38.10
850	21.89	-	-37.6	218.6	12365	-14375	21.7	40.16
900	23.62	-	-25.6	200.3	11616	-11914	22.9	42.20
950	25.77	-	-15.2	184.7	11027	-9906	24.1	44.21
1000	28.41	-	-6.1	171.2	10562	-8257	25.3	46.20

References:

1. IUPAC; "Atomic Weights of the Elements 1993"; J. Phys. Chem. Ref. Data 1995, 24, 1561.
2. E. F. Westrum, Pure and Appl Chem., 1964, 8, 187.
3. V. V. Malyshev, Teplofizika Vysokikh Temperatur, 1973, 11, 1010.
4. M. W. Chase, "NIST-JANAF Themochemical Tables, Fourth Edition", J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951.
5. J. J. Hurly, "Thermophysical Properties of Gaseous Tungsten Hexafluoride from Speed-of-Sound Measurements", Int. J. Thermophys., In Press.
6. D. R. Stull, "Vapor Pressure of Pure Substances", Ind. Eng. Chem. 1947, 39, 517.

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