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Tin(II) pyrophosphate is used to inhibit the formation of volatile sulfur compounds. Further, it is used for cyanide-free tin coating.
Liu, C. R.; Pan, L. S.; Li, C. H.; Chen, H. R.; Lee, C. L. Ag/Sn Nanoparticles Reduced by Tin(II) Pyrophosphate, Tin(II) Oxalate, and Tin(II) Sulfate for Catalyzing Electroless Copper Deposition. J. Electrochem. Soc. 2015, 162 (7), D283-D290.
Terasaka, J.; Toyoura, K.; Nakamura, A.; Matsunaga, K. Hydroxide-ion incorporation and conduction mechanisms in tin pyrophosphate -a first-principles study. J. Mater. Chem. A 2015, 3 (22), 11905-11911.
Gefahrenhinweise (EU): H303-H315-H319-H335
May be harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.