Solder melts before pure tin or pure lead because the molecules of the tin and the lead which make up the solder have not bonded chemically (they have only been mixed together so there has been not chemical reaction), so can easily vibrate quicker, therefore they will melt quicker.
Solder Also Pewter is a malleable metal alloy, traditionally 85-99% tin, with the remainder consisting of copper, antimony, bismuth and lead.
Solder has traditionally been a tin lead alloy, but there are many variations depending on the application:jeweler's solder or silver solder, has always contained silver to prevent the solder from dissolving silver and/or gold from the item being solderedother low melting point metals are sometimes added to make low melting point solderpure tin solder is sometimes used to eliminate toxic leadetc.Solder sold in the form of wire is sometimes hollow with a core filled with flux paste to make soldering easier without the need for extensive precleaning of the work so that the solder properly wets. For plumbing purposes (where the work can be rinsed afterwords) the flux paste is acidic and very corrosive, for electronics work the flux paste is a rosin.
Most commonly, but antimony is another basic component of some solders. The European Union, China, and California are areas where lead solder is banned in consumer products. Tin-lead solders were most often used because they are easily melted and inexpensive. Lead-based solders have a few problems which are reducing their popularity: - Environmental concerns about e-waste - Worker safety concerns for people who constantly work with solder - The low melting point, which is not suitable for modern microprocessors Any metal which is melted to bond to another metal is a solder. Silver solder is used to repair silver jewelry, and gold solder to repair gold. Silver solder is also used in food-grade plumbing. Drinking water is soldered with lead-free solder (but lead was used in nearly all plumbing soldering until the late 1980s).
No, most metals do not react with each other, By melting "together" you'll make a mixture named Lead-Tin alloy: Tin forms a eutectic mixture with lead containing 63% tin and 37% lead, used as "solder"
True
The chemical formula for solder can vary depending on the type of solder being used, but a common formula is Sn (tin) mixed with Pb (lead), known as Sn-Pb solder. The ratio of tin to lead can differ, with common ratios being 60% tin and 40% lead (60/40 solder) or 63% tin and 37% lead (63/37 solder).
Solder
If the question relates to solder or tin-lead plating of electronic components to prevent tin whiskers from growing then the answer is a minimum of 3% lead in the tin solder. Eutectic tin-lead solder for electronics is 63% tin 37% lead. Due to the European Union's lead ban (environmental regulation called RoHS), non-lead tin solders have been developed; SAC alloys (tin-silver-copper) being most common. A higher temperature is required to melt solders that do not contain lead. As of this writing (Oct 2010), there is no adequate substitute for lead. Tin whiskers may grow and eventually cause electronic products to fail and we do not know why that happens or how long it takes for them to grow. One scientist at NASA aptly summarized the situation: "Sometimes tin whiskers" For sheetmetal (copper, tin plate, galvanized steel plate soldering, 50% tin - 50% lead is preferred. 50-50 was used for copper plumbing until lead was banned (concerns about water quality). Silver replaced the lead and a higher temperature was required to melt it.
No, lead solder is not a ferrous metal. Ferrous metals contain iron, while lead solder is primarily composed of tin and lead.
The compound symbol for solder can vary depending on the specific composition. Common solder compounds include tin-lead solder (Sn-Pb) and lead-free solder such as tin-silver-copper (Sn-Ag-Cu) or tin-copper (Sn-Cu).
It is a mixture
Traditional electronics solder also contains resin.
solder tin, lead,
Solder
Tin is more conductive. Lead is used to ease application.
Soder used to be made of a mixture of tin and lead. But when it was discovered that lead was poisonus, it changed to a mixture of mainly tin.
soft solder is made of tin and lead. :D