Heights of Antimony and Bismuth Alloys. 



229 



Bi 



Sn 











50 



50 



28-9 



25-7 



0-929 + 875 



60 



40 



32-1 



21-2 



1-333 



1255 



70 



30 



32-0 



20-0 



2-139 



2014 



80 



20 



29-9 



25-2 



3-109 



2926 



90 



10 



31-5 



23-1 



4-790 



4509 



95 



5 



31-5 



23-1 



4-850 



4502 



97-5 



2-5 



30-3 



26-7 



4-400 



4134 



98-75 



i-25 



30 



26-1 



3-556 



3348 



99-25 



0-75 



30-6 



25-1 



1-376 



1296 



99-62 



0-37 



30-0 



23-0 



0-044 



41 



Sn 



Sb 















100 



33-0 



26-0 



3-462 + 3267 



5 



95 



29-6 



25-7 



0-845 



793 



10 



90 



30-0 



29-5 



0-824 



777 



20 



80 



28-4 



27-7 



1-496 



1408 



30 



70 



28-0 



28-0 



1-296 



1220 



40 



60 



28-1 



28-2 



1-330 



1254 



50 



50 



31-1 



23-3 



0-652 



614 



70 



30 



31-7 



22-4 



0-229 



216 



80 



20 



30-9 



19-8 



0-113 



107 



Commei 



•cial Sb 



30-0 



30-4 



2-678 



2520 



Cd 



Bi 











0-25 



99-75 



28-8 



26-7 



3-260 + 3801 



0-50 



99-50 



29-9 



30-7 



3-460 



4057 



1-00 



99-00 



31-7 



20-5 



2-750 



3207 



1-25 



98-75 



29-2 



27-5 



2-710 



3160 



2-50 



97-50 



31-9 



18-8 



2-260 



2642 



5-00 



95-00 



28-7 



23-4 



1-740 



2000 



10-0 



90-00 



30-4 



23-8 



1-202 



1401 



20-0 



80-00 



31-9 



19-8 



0-424 



495 



oo- 



o-oo 



29-5 



21-1 



0-296 



345 



An inspection of the table shows that the best combination 

 for a thermo-junction from these alloys is, — for one element 

 bismuth with from two to five per cent antimony ; and for the 

 other bismuth with from five to ten per cent tin. Both of 

 these alloys are easily cast into very thin leaves by the method 

 above described, and can then be worked with a fine file as 

 thin as O03 mm and are sufficiently tough to stand ordinary treat- 

 ment. 



According to Boys the Elliot Bros, instrument makers, use 

 in their thermopiles alloys of bismuth thirty- two parts, antimony 

 one part, and bismuth twelve parts, tin one part. 



