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To fully realize the issue, we have to determine what makes up a typical rosin based solder fume. A solder that is typical is a mixture of tiny particles (smoke) and gases which may be explained as around 95% particulates (the real smoke plume), and around 5% gases and vapours which can have a cocktail of Acetones, Methyl Alcohol, Formaldehyde, skin tightening and, Diterpine Acid, Carbon Monoxide and Isopropyl Alcohol. Note: Even 'Synthetic' and 'No Clean' fluxes can result in lung irritation that is serious
<img src="" style="max-width:440px;float:left;padding:10px 10px 10px 0px;border:0px;" alt="best soldering iron for the money" title="best soldering iron for the money (c)" />As soon as inhaled, the lungs cannot easily remove particle sizes under 10 microns. In the event that you knew a peoples hair is roughly 100 microns in diameter, think about this - the biggest solder fume particle is about 10 microns in diameter as well as the tiniest is around 0.3 microns (you can only see 30 <a href="">microns</a> by having a nude eye).
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Solder fumes from soldering using solder that is rosin-cored cause asthma. You should constantly try and avoid experience of any substances which will cause asthma. If which is not reasonably practicable, get a grip on short and long term exposures to avoid asthma developing by installing LEV (local exhaust ventilation or fume removal). If a person develops asthma that is occupational also suprisingly low quantities of solder fumes floating around can trigger an attack.
When solder flux is heated above 183 Deg. C, (or higher for Lead complimentary) a complex combination of resin acid particulates (smoke) and gases are generated - this is called 'COLOPHONY' and is produced from Hand Soldering, Solder Pots and Fountains, Wave <a href="">Solder machines</a> and Reflow Ovens