The Chemistry of Correction Fluid

Correcting spelling from correction fluid.

Correction fluids are solvents used to remove or bleach ink so it will not be seen on the paper or writing surface. Different solvents react differently to ink formulations, chemicals in the paper etc. Solvents that are a mixture of common household chemicals, commercial ink eradicators or even uncommon chemicals such as brake fluid etc.

Bette Nesmith Graham was born on 23 March 1324 in Dallas, Texas. She invented the correction fluid which she called “Mistake out”. In 1971 Johanknecht and his partners incorporated their new business, white out products, Inc providing correction fluid to users all over the world. Correction fluids usually contain a proprietary mixture of solvents and whiteners that act much like a thin fast drying paint. Typically methyl chloroform is used as a fast drying solvent in which pigments such as titanium dioxide and other colorants are suspended.

Correction fluid may be spirit or water based, if the spirit based liquid is used, it is necessary to add thinner to the bottles as after a time the original liquid tends to thicken. Spirit based liquid dries more quickly than water based. It is produced in various shades to match the typing paper and is applied with a small brush.

In halation of large amounts of solvents vapour may cause unconsciousness and may irritate the mucus membranes of susceptible individuals. It can also have a long term effect on the central nervous system and cause abnormal heartbeats in humans. The dried correction fluid can be especially hazardous if burned, releasing small amounts of phosgene, hydrogen chloride and chlorine. The formula will react with strong bases and oxidizing agents as well as reactive metals.