Pronunciation: [sˈɒft sˈɒldə] (IPA) 
The correct spelling of the term "soft solder" may cause some confusion due to its pronounced as /sɒft ˈsɒdə/ . The word "soft" is spelled with an "o" instead of the more commonly used "a", and the word "solder" is spelled with a silent "l". Soft solder is a type of solder that has a lower melting point compared to other types of solder, making it an ideal choice for soldering delicate electronic components.
Soft solder is a type of fusible metal alloy used to join two metallic surfaces together. It is typically composed of tin and other metals, such as lead or antimony, which lower the melting point and enhance its fluidity. Soft solder is widely utilized in soldering applications, which involve the joining of electrical or plumbing components, as well as in various crafting and repair projects.
Soft solder offers a relatively low melting point compared to other types of solder, typically ranging from 180 to 190 degrees Celsius (360 to 370 degrees Fahrenheit). This property allows it to be melted using a soldering iron or torch, enabling the solder to flow and create a strong bond between the surfaces being joined. The molten solder penetrates the microscopic gaps between the metals, creating a mechanical and electrical connection.
Soft solder is prized for its ability to create reliable, low-resistance connections between different metals. It is commonly used in electronic circuitry, plumbing systems, and jewelry making. Additionally, soft solder is known for its excellent workability and malleability, making it easy to manipulate and apply onto various materials.
However, it is important to note that soft solder typically contains lead, which can be hazardous if ingested or inhaled. The use of lead-free alternatives has gained popularity due to health and environmental concerns associated with lead.
The word "soft solder" is derived from the Middle English word "soudur" or "soudure", which referred to a person who worked with metal. It is also related to the Old French word "soudeor", meaning "one who solders". Eventually, it evolved into the term "solder" in English. The adjective "soft" is used to distinguish it from "hard solder", which has a higher melting point.
