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  • CDC Facts About Hydrogen Fluoride (Hydrofluoric Acid)

    Facts About Hydrogen Fluoride (Hydrofluoric Acid) Related Pages. FACT SHEET. What hydrogen fluoride is. Hydrogen fluoride is a chemical compound that contains fluorine. It can exist as a colorless gas or as a fuming liquid, or it can be dissolved in water.

  • Hydrofluoric acid - Wikipedia

    Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. It is a precursor to almost all fluorine compounds, including pharmaceuticals such as fluoxetine (Prozac), diverse materials such as PTFE (Teflon), and elemental fluorine itself.

    Chemical formula: HF (aq)
  • Hydrofluoric Acid - Environment, Health and Safety

    Required Personal Protective Equipmentin The Event of A Skin Or Eye Exposure to HFSpillsHydrofluoric Acid Resources1. Goggles 2. Face shield (plastic) 3. Acid resistant apron 4. Long pants and sleeves 5. Closed toe shoes 6. Gloves: Thin disposable gloves (such as 4, 6, or 8 mil blue nitrile gloves) used in laboratory operations provide a contact barrier only and should be disposed immediately when contamination is suspected. Thicker (10-20 mil) PVC or neoprene gloves provide better resistance but do not provide the necessary dexterity for many lab procedures. Thinner PVC or poly gloves can provide some r...
  • Hydrofluoric acid HF - PubChem

    Hydrofluoric acid is an irritant to the mucosa of the upper and lower portions of the respiratory tract. As in ocular tissues, concentrations as low as 5 mg/L (5 ppm) may produce irritation to the nasal mucosa. When hydrofluoric acid is present in concentrations greater than 48%, the solution fumes, adding to the volatile airborne fraction.

  • The acid that really does eat through everything the ...

    Apr 16, 2013  The acid creates a layer on the steel and this layer prevents the acid from dissolving the metal. Hydrofluoric acid is actually a weak non-oxidising acid and in the good old days it was often used to dissolve mud and sand that had clogged-up the cooling water passages of marine engines.

  • Hydrofluoric Acid Properties - Imperial College London

    Hydrofluoric Acid Concentration 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 0 5 10 15 20 25 30 35 40 45 50 Weight Percent HF pH. All statements and information are believed to be accurate and reliable, they are presented without guarantee or warranty of any kind, express or implied. Information

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  • what chemicals that can destroy stone Yahoo Answers

    May 28, 2010  It depends on the stone. Any carbonate-containing stone can be destroyed by pouring acid over it (especially nitric or hydrochloric acid). Silicates are notoriously difficult to decompose, but hydrofluoric acid can do the trick by forming the very volatile (and toxic) SiF4.

    Status: Resolved
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    Hydrofluoric acid - Breaking Bad Wiki. Hydrofluoric acid (HF) is a solution of hydrogen fluoride in water. Hydrofluoric acid is a highly corrosive acid, capable of dissolving many materials, especially... More details » Get Price

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    Dexpan Expansive Demolition Grout the easy way for concrete cutting, rock breaking. How to break up concrete and rocks for removal without jackhammer. Read More. chemical for breaking concrete - aoes . Are there any chemicals that break down cement but - Quora . Are there any chemicals that break down cement If the pipe is completely ...

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    May 28, 2010  Cement tends to contain lots of carbonates. Acid should do the trick quite nicely. Nitric acid, combined with hydrofluoric acid to break down the silicates, should work a charm. Be careful when using these acids; nitric acid is a severely corrosive chemical, and hydrofluoric acid is highly toxic due to its high affinity for calcium.

    Status: Resolved
  • /diy/ - Do-It-Yourself

    Try Dexpan (non explosive demolition agent) Requires a shit load of drilling thought. Yer gonna need a very good rock drill. Lots of mines in Leafia, try to buy or steal an air powered percussion drill. A regular hammerdrill from bosch might work but the bits will be $$$$ and wear out quick.

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    How to break rocks with Dexpan Chemical Rock Breaking Grout to work safer, easier and more cost effective. ... Hydrofluoric acid - Breaking Bad Wiki - Wikia. The ability of hydrofluoric acid to dissolve organic matter was tested in MythBusters' Breaking Bad special.

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    The invention relates to a hydrocarbon production stimulation method which can be used in new reservoirs and in reservoirs that have been previously fractured (e.g., by hydraulic fracturing) or that have naturally occurring fractures. A zone of the wellbore is isolated, a liquid chemical rock splitting agent composition is injected into the isolated zone and then forced into the subterranean ...

  • METHOD AND APPARATUS FOR ENHANCING THE PRODUCTIVITY

    Mar 17, 2016  FIELD. The invention described herein relates to the recovery of hydrocarbons from geological zones containing source rock. More specifically the invention relates to a method of producing fluid-conductive fractures within a rock formation for the recovery of fuels such as oil and gas therefrom that uses chemical rock splitting agents.

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    Powerful Chemical Agent Though it is a chemical demolition agent, Bustar has all the breaking strength needed for reinforced concrete. This strength has been ...

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    Hydrofluoric acid - Breaking Bad Wiki. Hydrofluoric acid (HF) is a solution of hydrogen fluoride in water. Hydrofluoric acid is a highly corrosive acid, capable of dissolving many materials, especially... More details » Get Price

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  • /diy/ - Do-It-Yourself

    Try Dexpan (non explosive demolition agent) Requires a shit load of drilling thought. Yer gonna need a very good rock drill. Lots of mines in Leafia, try to buy or steal an air powered percussion drill. A regular hammerdrill from bosch might work but the bits will be $$$$ and wear out quick.

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    How to break rocks with Dexpan Chemical Rock Breaking Grout to work safer, easier and more cost effective. ... Hydrofluoric acid - Breaking Bad Wiki - Wikia. The ability of hydrofluoric acid to dissolve organic matter was tested in MythBusters' Breaking Bad special.

  • US20160076349A1 - Method and apparatus for enhancing the ...

    The invention relates to a hydrocarbon production stimulation method which can be used in new reservoirs and in reservoirs that have been previously fractured (e.g., by hydraulic fracturing) or that have naturally occurring fractures. A zone of the wellbore is isolated, a liquid chemical rock splitting agent composition is injected into the isolated zone and then forced into the subterranean ...

  • METHOD AND APPARATUS FOR ENHANCING THE PRODUCTIVITY

    Mar 17, 2016  FIELD. The invention described herein relates to the recovery of hydrocarbons from geological zones containing source rock. More specifically the invention relates to a method of producing fluid-conductive fractures within a rock formation for the recovery of fuels such as oil and gas therefrom that uses chemical rock splitting agents.

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    Best Answer: Nothing is going to melt stone or concrete except heat and in some cases that will not work. Concrete can be cleaned with muriatic acid, which is used more often for getting cement cleaned off of brick, stone, and block masonry. Contact Supplier

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    Acid attack on concrete - Concrete Experts International. Concrete is susceptible to acid attack because of its alkaline nature. The components of the cement paste break down during contact with acids.

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    Best Answer: Nothing is going to melt stone or concrete except heat and in some cases that will not work. Concrete can be cleaned with muriatic acid, which is used more often for getting cement cleaned off of brick, stone, and block masonry. Contact Supplier

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    How To Clean Quartz - Beads, Rocks, Minerals, Fossils ... Other methods of dealing with iron stains use Iron-out or Naval Jelly. Iron-out is a commercial bisulfate cleaner meant for getting iron stains out of kitchen and bathroom fixtures.

  • Planilha para engenheiros Fabio Souza - Academia.edu

    Academia.edu is a platform for academics to share research papers.

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    Academia.edu is a platform for academics to share research papers.

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    May 28, 2010 Nitric acid, combined with hydrofluoric acid to break down the silicates, should work a charm. Be careful when using these acids; nitric acid is a severely corrosive chemical, and hydrofluoric acid is highly toxic due to its high affinity for calcium. More

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