462 



TABLE 486.— MAGNETIC SUSCEPTIBILITY OF SOME MATERIALS 



If / is the intensity of magnetization produced in a substance by a field strength H then the 

 magnetic susceptibility k = I/H. This is generally referred to the unit mass ; italicized figures 

 refer to the unit volume. The susceptibility depends greatly upon the purity of the substance, 

 especially its freedom from iron. The mass susceptibility of a solution containing p percent by 

 weight of a water-free substance (susceptibility k) is ** = (p/\00)ic + (1 — P/\00)k o . (k — sus- 

 ceptibility of water.) 



Substance /cXlO 9 



Ag -.19 



AgCl -.28 



Air, 1 Atm +.024 



Al +.65 



A1JC(S04)424H,0.. —1-0 



A, 1 Atm —.10 



As —.3 



Au -.15 



B -71 



BaCl 2 —.36 



Be +.79 



Bi -1.4 



Br -.38 



C, arc-carbon — 2.0 



C, diamond — .49 



CH 4 , 1 Atm +.001 



C0 2 , 1 Atm +.002 



CS, —.77 



CaO —.27 



CaCl 2 -.40 



CaC0 3 , marble —.7 



Cd -.17 



CeBr, +6.3 



CU, 1 Atm —.59 



Cod, +90. 



CoBr, +47. 



Col. +33. 



CoSCh +57. 



Co(N0 3 ) 2 +57. 



Cr +3.7 



CsCl —.28 



Cu -.09 



CuCl, +12. 



CuSCX +10. 



CuS +.16 



FeCU +90. 



FeCl 2 +90. 



FeS0 4 +82. 



Fe 2 (N0 3 ), +50. 



He, 1 Atm —.002 



H 3 , 1 Atm .000 



H,, 40 Atm .000 



rLO -.79 



HC1 —.80 



H 2 S0 4 +.78 



HNO3 —.70 



Hg -.19 



I -.4 



In .1± 



Ir +.15 



K +.40 



KC1 -.50 



KBr —.40 



KI -.38 



KOH -.35 



K 2 S0 4 —.42 



KMnO, +2.0 



KNO3 -.33 



K 2 C0 3 —.50 



Substance aX10« 



Li +.38 



Mo +.04 



Mg +.55 



MgS0 4 —.40 



Mn +11. 



MnCU .'. +122. 



MnSO, +100. 



N,, 1 Atm .001 



NH 3 —1.1 



Na +.51 



NaCl —.50 



Na 2 C0 3 —.19 



Na 2 CGvlO H 2 ... —.46 



Nb +1.3 



NiCl 2 +40. 



NiS0 4 +30. 



2 , 1 Atm +.120 



Os +.04 



P, white —.90 



P, red —.50 



Pb —.12 



PbCU —.25 



Pd +5.8 



PrCl 3 +13. 



Pt +1.1 



PtCl 4 .0 



Rh +1.1 



S -.48 



S0 2 1 Atm —.30 



Sb —.94 



Se -.32 



Si —.12 



So0 2 , Quartz —.44 



-Glass — .5± 



Sn +.03 



SrCU —.42 



Ta +.93 



Te —.32 



Th +.18 



Ti +3.1 



V +1.5 



W +.33 



Zn —.15 



ZnSO —.40 



Zr —.45 



CH3OH —.73 



GH 5 OH —.80 



GH 7 OH —.80 



GHaOGHs —.60 



CHCU —.58 



GHe — .78 



Ebonite +1-1 



Glycerine — .64 



Sugar — .57 



Paraffin —.58 



Petroleum — .91 



Toluene — .77 



Wood —.2-5 



Xylene —.81 



18 



20 



22 



SMITHSONIAN PHYSICAL TABLES 



