ਟਾਂਕਾ

120px|thumb|Sn60Pb40ਟਾਂਕਾ
ਟਾਂਕਾ ਮਿਸ਼ਰਤ ਧਾਤ ਟਿੰਨ ਅਤੇ ਸਿੱਕੇ ਦੇ ਤੱਤਾਂ ਤੋਂ ਬਣਦੀ ਹੈ। ਇਹ ਬਹੁਤ ਨਰਮ ਹੁੰਦੀ ਹੈ। ਇਸ ਦੀ ਵਰਤੋਂ ਇਲੈਕਟਰਾਨਿਕ ਦੀਆਂ ਚੀਜਾਂ ਦੀਆਂ ਤਾਰਾਂ ਜੋੜਨ ਜਾਂ ਸੀਟਾਂ ਜੋੜਨ ਵਾਸਤੇ ਕੀਤੀ ਜਾਂਦੀ ਹੈ। ਨਰਮ ਟਾਂਕੇ ਦੀ ਪਿਘਲਣ ਦੀ ਰੇਂਜ 90 °C ਤੋਂ 450 °C ਹੁੰਦੀ ਹੈ। ਸਖਤ ਟਾਂਕੇ ਦੀ ਪਿਘਲਣ ਦਰ 450 °C ਤੋਂ ਵੱਧ ਹੁੰਦੀ ਹੈ।
ਕਿਸਮਾਂ
ਮਿਸਰਣ  M.P. °CS/L ਜ਼ਹਿਰੀਲਾ ਗਲਣਾ  Sn  Pb  Ag  Cu  Sb  Bi  In  Zn  Cd  Au  ਹੋਰ                             Sn50Zn49Cu1 200/300  no  50    1     49     Sn95.5Cu4Ag0.5 226/260  no  95.5   .5  4         Sn90Zn7Cu3 200/222  no  90    3     7    Pb90Sn10 268/302 275/302 Pb  no  10  90           Pb88Sn12 254/296  Pb  no  12  88           Pb85Sn15 227/288 Pb  no  15  85           Pb80Sn20 183/280  Pb  no  20  80           Pb75Sn25 183/266  Pb  no  25  75           Pb70Sn30 185/255 183/257  Pb  no  30  70           Pb68Sn32 253  Pb  no  32  68           Pb68Sn30Sb2 185/243 Pb  no  30  68    2        Sn30Pb50Zn20 177/288 Pb  no  30  50       20     Sn33Pb40Zn28 230/275  Pb  no  33  40       28     Pb67Sn33 187–230  Pb  no  33  67           Pb65Sn35 183/250  Pb  no  35  65           Pb60Sn40 183/238 183/247 Pb  no 40  60           Pb55Sn45 183/227 Pb  no  45  55           Sn50Pb50 183/216 183–212 Pb  no  50  50           Sn50Pb48.5Cu1.5 183/215 Pb  no  50  48.5   1.5         Sn60Pb40 183/190</> 183/188  Pb  near  60  40           Sn60Pb38Cu2 183/190 Pb   60  38   2         Sn60Pb39Cu1  Pb  no  60  39   1         Sn62Pb38 183  Pb  near 62  38           Sn63Pb37 183 Pb  yes  63  37           Sn63Pb37P0.0015–0.04 183  Pb  yes  63  37          P Sn62Pb37Cu1 183 Pb  yes  62  37   1         Sn70Pb30 183/193 Pb  no  70  30           Sn90Pb10 183/213  Pb  no 90  10           Sn95Pb5 238  Pb  no  95  5           Pb92Sn5.5Ag2.5 286/301  Pb  no  5.5  92  2.5          Pb80Sn12Sb8  Pb  no  12  80    8        Pb80Sn18Ag2 252/260  Pb  no  18  80  2          Pb79Sn20Sb1 184/270  Pb  no  20  79    1        Pb55Sn43.5Sb1.5  Pb  no  43.5  55    1.5        Sn43Pb43Bi14 144/163  Pb  no  43  43     14       Sn46Pb46Bi8 120/167  Pb  no  46  46     8       Bi52Pb32Sn16 96  Pb  yes?  16  32     52       Bi46Sn34Pb20 100/105  Pb  no  34  20     46       Sn62Pb36Ag2 179 Pb  yes  62  36  2          Sn62.5Pb36Ag2.5 179 Pb  yes  62.5  36  2.5          Pb88Sn10Ag2 268/290 267/299 Pb  no  10  88  2          Pb90Sn5Ag5 292  Pb  yes  5  90  5          Pb92.5Sn5Ag2.5 287/296 299/304  Pb  no  5  92.5  2.5          Pb93.5Sn5Ag1.5 296/301 305/306 Pb  no 5  93.5  1.5          Pb95.5Sn2Ag2.5 299/304 Pb  no  2  95.5  2.5          In97Ag3 143 –  yes    3     97      In90Ag10 143/237 –  no    10     90      In75Pb25 156/165 Pb  no   25      75      In70Pb30 160/174 165/175  Pb  no   30      70      In60Pb40 174/185 173/181 Pb  no   40      60      In50Pb50 180/209 178/210  Pb  no   50      50      In50Sn50 118/125 –  no  50       50      In70Sn15Pb9.6Cd5.4 125 Pb,Cd   15  9.6      70   5.4    Pb75In25 250/264 240/260 Pb  no   75      25      Sn70Pb18In12 162154/167 Pb  yes  70  18      12      Sn37.5Pb37.5In25 134/181 Pb  no  37.5  37.5      25      Pb90In5Ag5 290/310  Pb  no   90  5     5      Pb92.5In5Ag2.5 300/310 Pb  no   92.5  2.5     5      Pb92.5In5Au2.5 300/310 Pb  no   92.5      5    2.5   Pb94.5Ag5.5 305/364 Pb  no   94.5  5.5          Pb95Ag5 305/364 Pb  no   95  5          Pb97.5Ag2.5 303  Pb  yes no   97.5  2.5          Sn97.5Pb1Ag1.5 305  Pb  yes  97.5  1  1.5          Pb97.5Ag1.5Sn1 309  Pb  yes  1  97.5  1.5          Pb54Sn45Ag1 177–210  Pb   45  54  1          Pb96Ag4 305  Pb    96  4          Pb96Sn2Ag2 252/295 Pb   2  96  2          Sn61Pb36Ag3  Pb   61  36  3          Sn56Pb39Ag5  Pb   56  39  5          Sn98Ag2  –   98   2          Sn65Ag25Sb10 233  –  yes  65   25   10        Sn96.5Ag3.0Cu0.5 217/220 217/218 –  near  96.5   3  0.5         Sn95.8Ag3.5Cu0.7 217–218  –  near 95.8   3.5  0.7         Sn95.6Ag3.5Cu0.9 217  –  yes  95.6   3.5  0.9         Sn95.5Ag3.8Cu0.7 217  –  almost  95.5   3.8  0.7         Sn95.25Ag3.8Cu0.7Sb0.25  –   95.25   3.8  0.7  0.25        Sn95.5Ag3.9Cu0.6 217  –  yes  95.5   3.9  0.6         Sn95.5Ag4Cu0.5 217  –  yes  95.5   4  0.5         Sn96.5Ag3.5 221 –  yes  96.5   3.5          Sn96Ag4 221–229  –  no  96   4          Sn95Ag5 221/254 –  no  95   5          Sn94Ag6 221/279  –  no  94   6          Sn93Ag7 221/302  –  no  93   7          Sn95Ag4Cu1  –   95   4  1         Sn 232  –  pure  99.99            Sn99.3Cu0.7 227  –  yes  99.3    0.7        (Ni) Sn99Cu0.7Ag0.3 217/228  –  no  99   0.3  0.7         Sn97Cu3 227/250 –   97    3         Sn97Cu2.75Ag0.25 228/314  –   97   0.25  2.75         Zn100 419  –  pure         100     Bi100 271  –  pure       100       Sn91Zn9 199  –  yes  91        9     Sn85Zn15 199/260  –  no  85        15     Zn95Al5 382  –  yes         95    Al5 Sn91.8Bi4.8Ag3.4 211/213 –  no  91.8   3.4    4.8       Sn70Zn30 199/316  –  no  70        30     Sn80Zn20 199/288  –  no  80        20     Sn60Zn40 199/343 –  no 60        40     Pb63Sn35Sb2 185/243 Pb  no  35  63    2        Pb63Sn34Zn3 170/256  Pb  no  34  63       3     Pb92Cd8 310?  Pb,Cd  ?   92        8    Sn48Bi32Pb20 140/160  Pb  no  48  20     32       Sn89Zn8Bi3 191–198  –   89      3   8     Sn83.6Zn7.6In8.8 181/187 –  no  83.6       8.8  7.6     Sn86.5Zn5.5In4.5Bi3.5 174/186 –  no  86.5      3.5  4.5  5.5     Sn86.9In10Ag3.1 204/205 –   86.9   3.1     10      Sn95Ag3.5Zn1Cu0.5 221L  –  no  95   3.5  0.5     1     Sn95Sb5 235/240 –  no  95     5        Sn97Sb3 232/238 –  no  97     3        Sn99Sb1 232/235  –  no  99     1        Sn99Ag0.3Cu0.7  –   99   0.3  0.7         Sn96.2Ag2.5Cu0.8Sb0.5 217–225 217 –   96.2   2.5  0.8  0.5        Sn88In8.0Ag3.5Bi0.5 197–208  –   88   3.5    0.5  8      Bi57Sn42Ag1 137/139 139/140  –   42   1    57       Bi58Sn42 138 –  yes  42      58       Bi58Pb42 124/126  Pb    42     58       In80Pb15Ag5 142/149 Pb  no   15  5     80      Pb60In40 195/225 Pb  no   60      40      Pb70In30 245/260 Pb  no   70      30      Sn37.5Pb37.5In26 134/181  Pb  no  37.5  37.5      26      Sn54Pb26In20 130/154 Pb  no  54  26      20      Pb81In19 270/280  Pb  no   81      19     

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ਸ਼੍ਰੇਣੀ:ਰਸਾਇਣ ਵਿਗਿਆਨ