Several alloys having very low melting-points are used in the manufacture of children's toys, and for other purposes where great softness is required. They are chiefly as follows:-(1) 8 parts bismuth, 5 lead, 3 tin, melted together; melting-point, 202° F. (94.5° C). (2) 2 parts bismuth, 5 lead, 3 tin; melts in boiling water. (3) 5 parts bismuth, 3 lead, 2 tin; melts at 197° F. (92° C). (4) 15 parts bismuth, 8 lead, 4 tin, 3 cadmium; known as " Wood's patent"; has a brilliant metallic lustre, does not tarnish readily, and melts between 150° and 160° F. (65 1/2° to 71° C). (5) 5 volumes each of bismuth, lead, and tin, with 4 of cadmium, form an alloy which is quite liquid at 150° F. (65 1/2° C). (6) 4 volumes each of bismuth, lead, and tin, with 3 of cadmium, fuses at 153 1/2° F. (67 1/2° C). (7) 2 volumes each of bismuth, lead, and tin, with 1 of cadmium, or 1 volume of each of the four metals, fuses at 155}° F. (68 1/2° C). (8) 1 part tin, 1 lead, 2 bismuth; melts at 200° F. (93.-5o C). (9) 15 parts bismuth, 8 lead, 4 tin, 2 cadmium; melts below 140° F. (60° C).

N.B. -All the alloys containing cadmium are liable to undergo rapid oxidation in contact with water.