Is soldering iron solder toxic or not?
In fact, this also depends on the work with a soldering iron soldering leaded solder wire or lead-free, and the need for regular checks of blood lead, not exceeding the standard will not be a problem at all, solder toxic? Normally speaking, if in accordance with national standards for protection and procurement of raw materials, solder will not cause significant harm. Nowadays, we basically use lead-free products.
Lead is a toxic substance, the human body absorbs too much will cause lead poisoning, intake of low doses may have an impact on human intelligence, nervous system and reproductive system. The alloy of tin and lead, which is commonly used as solder, has good electrical conductivity of the metal and a low melting point, so it has long been used in the soldering process. Its toxicity comes mainly from lead. Lead fumes from soldering can easily lead to lead poisoning.
Lead metal may produce lead compounds, all of which are classified as hazardous substances, and in humans lead affects the central nervous system and the kidneys. The environmental toxicity of lead to a number of organisms is well established. Blood lead concentrations of 10 μg/dl or more produce sensitive biochemical effects, and prolonged exposure that results in blood lead concentrations of more than 60 to 70 μg/dl can cause clinical lead poisoning.
Lead is certainly toxic, not to mention his big or not, is the general metal, more will be poisoned, soldering, there will be smoke, which contains a harmful element to the body. When working, it is best to wear a mask, but more or less will still have a little impact, of course, if you can use lead-free solder wire, will be much safer than lead.
To put it simply: the solder used for hazardous purposes is toxic because of its low melting point, containing 60% lead and 40% tin. And most of the solder on the market are hollow, filled with rosin, so the gas you said, it is estimated that the welding of rosin within the solder melted when the volatile out. Rosin volatile gas is also some slightly toxic, this gas is quite unpleasant. Solder in the welding of the main hazardous factors is lead fumes, even lead-free solder, which more or less contain a certain amount of lead. Lead fume in GBZ2-2002 in the limit value is very low, very toxic, need to focus on protection. Due to the damage of the welding process on the human body and the environment, in Europe, the protection of welding workers and the protection of the environment has been enforced in the form of legislation, in the absence of how to protect the conditions of welding is not allowed. In the ISO 14000 standard on the production process of pollution generated by the treatment and protection of clear provisions.
