the sticky brown substance in a cigarette is tar.
Probably the most direct way to remove a tobacco stain from a mustache would be to cut off the hair, stop using tobacco, and regrow the mustache. An alternative would be to stop using tobacco and let the stained hair grow out, trimming as appropriate. Eventually there will be no stain left.
Teeth stain can be caused by a lot of things. Usually the biggest causes are tobacco, tea, coffee, red wine, colas, and some stain can be caused by iron deposits in water. Usually these are removable with a basic dental cleaning. If the stain is intrinsic (meaning cannot be removed), then there was probably a factor in your childhood that caused the stain while the teeth were forming. Such factors are high fevers and Tetracycline (antibiotic). Environmental factors "may" cause tooth stain such as if you work around certain chemicals. You may want to bring this up to your dentist to find the cause if you believe it is chemical related and you do not use any of the products noted above.
Stain remover may be a solvent (dissolution of the spot) or a substance which chemically react with the spot.
This part of the nucleus is the nucleoplasm.
no.
An investigation into the effectiveness of stain-removing products
no the vans water and stain shield does have any silicone or plastic products in it
My cat got sick and vomited all over my carpet. What products out there are the best for carpet stain removal and where can I get them?
A stain? Could be a salt: an ionic compound formed from the reaction between an acid and a base.
stain remover and bleach
descalers, stain removers
You can remove stains from clothes using products such as OxiClean Max Force, Tide Stain Brush and Tide to Go. You can purchase these items from Amazon.