TABLE 283.— DENSITY IN g/cm 3 AND lb/ft 3 OF VARIOUS ALLOYS 293 



Alloy g/cm 3 lb/ft 3 



Brasses : yellow, 70Cu + 30Zn, cast 8.44 527 



rolled 8.56 534 



drawn 8.70 542 



red, 90Cu + lOZn 8.60 536 



white, 50Cu-f50Zn 8.20 511 



Bronzes : 90Cu + lOSn 8.78 548 



85Cu + 15Sn 8.89 555 



80Cu + 20Sn 8.74 545 



75Cu + 25Sn 8.83 551 



German silver : Chinese, 26.3Cu + 36.6Zn + 36.8Ni 8.30 518 



Berlin (1) 52Cu + 26Zn + 22Ni 8.45 527 



(2) 59Cu + 30Zn + llNi 8.34 520 



(3) 63Cu + 30Zn + 6Ni 8.30 518 



" nickelin 8.77 547 



Lead and tin : 87.5Pb + 12.5Sn 10.60 661 



" " 84Pb + 16Sn 10.33 644 



" " 77.8Pb + 22.2Sn 10.05 627 



" " 63.7Pb + 36.3Sn 9.43 588 



" " 46.7Pb + 53.3Sn 8.73 545 



" " 30.5Pb + 69.5Sn 8.24 514 



Bismuth, lead, and cadmium : 53Bi + 40Pb + 7Cd 10.56 659 



Wood's metal : 50Bi + 25Pb + 12.5Cd + 12.5Sn 9.70 6Q5 



Cadmium and tin : 32Cd + 68Sn 7.70 480 



Gold and copper : 98Au + 2Cu 18.84 1176 



" " " 96Au + 4Cu 18.36 1145 



" " " 94Au + 6Cu 17.95 1120 



90Au + 10Cu 17.16 1071 



" " " 86Au + 14Cu 16.47 1027 



Aluminum and copper : 10A1 + 90Cu 7.69 480 



5Al + 95Cu 8.37 522 



3A1 + 97Cu 8.69 542 



Aluminum and zinc : 91 A1 + 9Zn 2.80 175 



Platinum and iridium : 90Pt + 10Ir 21.62 1348 



85Pt + 15Ir 21.62 1348 



66.67Pt + 33.331 r 21.87 1364 



Carboloy 14.3 895 



Constantan : 60Cu + 40Ni 8.88 554 



Magnalium: 70A1 + 30Mg 2.0 125 



Manganin : 84Cu + 12Mn + 4Ni 8.5 530 



Monel metal 8.87 554 



Platinoid : German silver + little tungsten 9.0 560 



Stellite: Co 59.5 ;Mo 22.5; Cr 10.8; Fe 3.1; Mn 2.0 ; C .9; Si .8 8 3 518 



TABLE 284.— PHYSICAL PROPERTIES OF SOME LIGHT HYDROCARBONS 07 



Critical constants 



Specific heats 



Methane CH\ 



Ethylene C 2 H 4 



Ethane C 2 Hn 



Propylene .... GHe 



Propane C 3 Ht, 



Butadiene-1,3 . . C^n 



Butene-1 GH S 



cis-Butene-2 . . C4H8 

 trans-Butene-2. C 4 Hs 

 Isobutylene . . . C4HH 



Isobutane C4H10 



n-Butane C4H10 



u7 Shnidman, Louis (ed.), Gaseous fuels, p. 34, American Gas Assoc, 1948. 

 SMITHSONIAN PHYSICAL TABLES 



