Rose's metal

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Rose's metal, also called Rose metal or Rose's alloy is a fusible alloy with a low melting point.

Composition

Rose's metal consists of 50% bismuth, 25–28% lead and 22–25% tin by weight. Its melting point is between 94-98 °C (201-208 °F).

Properties

Rose's metal is a relative dense silvery-gray alloy. The alloy does not contract on cooling.

Availability

Rose's metal is sold by various chemical and metallurgical suppliers.

Preparation

Rose's metal can be made by melting bismuth, lead and tin in the respective ratios.

Uses

  • Heating bath
  • Solder
  • Malleable filling to prevent tubes and pipes from crimping when bent

Safety

The alloy contains lead, which is toxic.

See also

References

Relevant Sciecnemadness threads