Tables of physical and chemical constants and some mathematical functions / by G.W.C. Kaye and T.H. Laby.

  • G. W. C. Kaye
Date:
1911
Catalogue details

Licence: Public Domain Mark

Credit: Tables of physical and chemical constants and some mathematical functions / by G.W.C. Kaye and T.H. Laby. Source: Wellcome Collection.

    54/172 page 42
    VAPOUR PRESSURES VAPOUR PRESSURES OF ELEMENTS ft — vapour pressure in mms. of mercury at o° C. lat. 450 and sea-level (g — 98o'62) (t.e. 1 mm. Hg = 1333*2 dynes per sq. cm.). If followed by aft is in atmospheres; 0 = absolute temp. (A.) ; t — temp, in 0 C. ; (s) solid ; (/) liquid. The thermometry is in many cases somewhat dubious. Interpolate logs of vapour pressures as explained on p. 40. Argon ....... t -121° C. -128-6 -1296 -134 4 -1351 -136-2 -138 3 -1391 (Olszewski, 1895) • ) 50-6 at. 38-0 35'8 29-8 290 27-3 25-3 23-7 — Argon ....... 9 78° 9 A. 869 97 9 107-3 155-6 = crit. temp. — — Krypton. 9 110°-5 A. 1213 135-2 147-3 — 210-5 = crit. temp. — Xenon. 3148°-9 A. 163-9 182-9 199-6 — 287 8 = crit. temp. (Ramsay & Travers) . . ; E> 300 mm. 760 2000 4000 40,200 41,240 43>5oo — — Bromine ...... 1 b -16°*6 C. -12 0 -50 8-2 169 234 405 519 58-7 (Ramsay & Young, 1886) . ] ? 20 mm. 30 50 100 150 200 400 600 760 Chlorine.1 t -80° C. -60° -40 -336 -20 0 10 20 30 (Knietsch, 1890) . . . . ] y 62’5 mm. 210 560 760 1-84 at. 3-66 4-95 6-62 8-75 Iodine (Baxter, Hickey, ; 0°C. 15 30 55 85 117 137 160-9 185-3 & Holmes, 1907) . . . ] 3 -03 mm. •131 •469 3-08 20 100 200 400 760 Hydrogen (Travers & fc-2580,2C. 2567 -255-7 -255 0 -254-3 -253 7 -253 2 -252-9 H. Scale Jaquerod, 1902) . . . . 1 ) 100 mm. 200 300 400 500 600 700 760 — Helium.t > 4C’5 A. — — — Neon (Travers 0|15°-65 A.0020 4 (s)) He (Onnes, 1908) . . . . ^ ) 760 mm. — — — & Jaquerod, ’02) p 2-4 mm. I28 /Scale Mercury. See p. 41. 9 Ha. Emanation | | See p. 103. Nitrogen (Baly, 1900 . . 6 62°-5 A. 67-8 72-4 77-3 80 83 86 89 91 Fischer & Alt., 1902) . . j ) 86 mm. 200 400 760 1013 1386 1880 2465 2916 Oxygen (Jaquerod,Travers, 1 79°1 A. 821 84-4 86-3 87-9 89-3 901 90-6 11. Scale & S enter, 1902) . . . . j ) 200 mm. 300 400 500 600 700 760 800 — Phosphorus.t 165° C. 170 180 200 209 219 226 230 287 3 1 (Schrotter, 1848) . . . j 120 mm. 173 204 266 339 359 393 5H 760 Sulphur (Ruff & Graft’, ’08 ; t 50° C. 100 147 211 400 444-5 | St/5p = o°‘09/mm. near B., 1899 ; C., 1899) . . •0003 mm. •0089 •192 3*i4 c. 372 760 B.P. (see p. 50). VAPOUR PRESSURES OF COMPOUNDS For a coir iplete list, see Schenck in L.B.M. Hydrochloric acid . . . t -730,3 C. -45-5 -23-3 -3 9 40 92 13 8 220 33-4 (F., 1845 5 Ansdell, 1880). p 1*8 at. 6-3 12-8 23-1 29-8 33-9 37'7 45-7 58-8 Sulphuretted hydrogen . t -25° C. -15 -5 0 10 30 50 60 70 (R., 1862) ...... p 4'93 at. 684 9'3 io*8 14-3 23-7 36-6 44‘4 53'i Sulphur dioxide . . . . t -30° C. -20 -10 0 10 20 30 40 50 (Regnault, 1862) . . . p •39 at. •63 1 00 I'53 2-26 3-24 4-52 6-15 8-19 Ammonia, NH3 . . . . t -80° C. - 776 -70-4 -64-4 -60-8 -544 -462 -398 -33 0 (Brill, 1906) ..... 'p 35*2 mm. 44' 1 74'9 1 i6-o i57'6 239-5 403-5 568-2 761 Nitrous oxide, N20 . . . t -80° C. -60 -40 -20 -10 0 10 20 40 (Cailletet, ’78; R., ’62) . !p 1 ’9 at. 5'05 iro 23-1 28-9 36-1 44-8 55 3 83-4 Nitric oxide, NO . . . t -176'5CC. -167 -138 -129 -119 -110 -105 -100-9 -97 5 (Olszewski, 1885) . . . p •024 at. •182 5'4 io-6 200 31-6 41*0 49'9 57-8 Nickel carbonyl, NiC04 . t -9° C. -7 -2 0 10 16 20 30 — (D. & Jones, 1903). . . p 94'3 mm. 104-3 129-1 H4'5 2150 283-5 329-5 462 “
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