OWLS™ Water Education: Types of Fluoride For Students and Educators
OWLS™ STEM Education Research Resources are for students of all ages and for assisting teachers and parents in the education of our children on the importance of clean healthy drinking water. The research material posted below is for educational purposes only.
How Many Types of Fluoride are There?
A lot. A whole lot. When the element of fluoride is combined with something else, it becomes a fluoride compound. There is a vast range of fluorine-containing compounds because fluorine has the capability of forming compounds with nearly all the elements.
Here are some common forms.
Used in most toothpastes, mouthwashes, dental varnish, dental preparations and nutritional supplements. This same form of fluoride is used as an insecticide and pesticide, as a preservative in glues, as a growth inhibitor for bacteria, fungi and mold. Sodium fluoride is also used in making steel and aluminum products. Added to molten metal, sodium fluoride creates a more uniform metal.
Other industrial uses for sodium fluoride include glass frosting and wood preservatives. Sodium Fluoride is also used in the manufacture of chemical and biological weapons. Although this form of fluoride can be used for water fluoridation, the next two forms listed are almost always used due to cost.
Calcium Fluoride (CaF2)
Compound of calcium and fluorine which occurs naturally as the mineral fluorite – also called fluorspar. Most of the world’s fluorine comes from calcium fluoride. Fluorides in general are toxic to humans, however CaF2 is considered the least toxic, and even relatively harmless due to its extreme insolubility. Moreover, calcium is a well-known antidote for fluoride poisoning. When an antidote exists in combination with a poison, it makes the poison far less toxic to the body. Calcium fluoride is the form of fluoride commonly found in natural, untreated waters.
Or Sodium Aluminum Fluoride is commonly used for aluminum smelting, though is also a pesticide often applied directly to field crops, resulting in permitted fluoride residues in and on fresh fruits and vegetables. For more information on cryolite, click here.
Fluorosilicic acid (H2SiF6)
Commonly used for water fluoridation. This form of fluoride is a toxic liquid by-product, acquired by scrubbing the chimney stacks of phosphate fertilizer manufacture. Other names for it are hexafluorosilicic, hexafluosilicic, hydrofluosilicic, and silicofluoric acid. The CDC approximates that 95% of our water is fluoridated with fluorosilicic acid.
Sodium Fluorosilicate (Na2SiF6)
Primarily added to public drinking water as a fluoridation agent. This same compound is also used as an insecticide and a wood preservative.
It is a classified hazardous waste by-product of phosphate fertilizer manufacture which, if not put into our drinking water, must be disposed of at hazardous waste facilities.
Other names for it are Sodium Fluosilicate and Sodium Silica Fluoride.
Popular name given to Tin (II) fluoride. Stannous fluoride is an additive to many toothpastes because it does not become biologically inactive in the presence of calcium, as sodium fluoride does. (http://en.wikipedia.org/wiki/Tin%28II%29_fluoride)
Applied as a gas fumigant to kill insects and rodents. Using sulfuryl fluoride around food products was not allowed due to its toxicity. In 2004 the EPA reversed this policy (following long lobbying efforts by the manufacturer) and allowed its use on food. This opened the doors for food processing companies nationwide to fumigate their facilities with sulfuryl fluoride, leaving high levels of fluoride in and on foods and even food packaging.
It has become acceptable for sulfuryl fluoride fumigations to produce fluoride residues of 70 ppm “in or on” processed foods and 130 ppm “in or on” wheat.
There have been no labeling requirements for foods treated with sulfuryl fluoride, meaning that consumers have had no way of knowing which foods are treated. In January 2011 this decision was reversed and in about 3 years this fumigation of food reportedly will stop.
Courtesy of: Fluoride Free Kansas™
Historical Fluoride Research Articles
- Victory in Wichita
- Wichita Voters Reject Fluoridated Water
- Three Issues Arise in Fluoride Vote
- Fluoride: Wichita’s Big Question
- KHF Ties to Fluoride in Industry
- Dr. Paul Connett Answers WFHT
- Dr. Paul Connett on Extraordinary Year
- Fluoride Expert Appears at Commission
- Dr. Paul Connett: Vote NO November 6th
- Dr. Paul Connett at Sedgwick Commission
- Dr. Paul Connett at the Murdock Theatre
- Fluoridation: An Unsafe Practice (PPT)
- Leading Fluoride Critic Speaks in Wichita
- Dr. Burgstahler with Gene Countryman
- Letter to Editor: Be Independent
- Fluoride Fight Has Long Roots
- Professor Speaks Against Fluoridation
- Fluoride Mafia Offers $1.35 Million
- Paul Connett, PhD Speaking in Wichita
- Water Customers Await Fluoride Vote
- Rock Road ‘Sign Raiser’ Saturday
- Information Presented in Fluoride Debate
- Meridian/Pawnee ‘Sign Raiser’ Thursday
- League of Women Voters Fluoride Forum
- League of Woman Voters Debate Fluoride
- Does Your Vote Count in Kansas?
- Wichita Anti-Fluoride Electronic Billboards
- Q & A Before Wichita Fluoride Vote
- Vote No Flyer by Pure Water for Wichita
- Meridian ‘Sign Raiser’ October 21st
- Fluoride Panel Discussion on KPTS Impact
- Critics Speak Against Fluoride Sheet
- WFHT Hosts Bill Maas in Mock Forum
- Battle Over Fluoride a Hot Issue
- Sedgwick Commission Meeting on Fluoride
- Fluoride Discussion in Sedgwick County
- County Commission Hearing Wednesday
- Rock Road ‘Sign Raiser’ October 20th
- CDC ‘Expert’ to Speak on Fluoridation
- WFHT Delivers CDC Fluoride Mouthpiece
- Voter Registration Deadline October 16th
- Voters Educated on Voting Laws
- Wichita Residents Unsure About Fluoride
- Portland Group Submits 43,236 Petitions
- Rock Road ‘Sign Raiser’ October 13th
- Fluoride Sheet Removed Amid Protests
- Comments on Fluoride October 17th
- Sedgwick Commission Fluoride Comments
- Fluoride Foes Object to County Info Sheet
- Dr. Paul Connett Comes to Wichita