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Hydrofluoric acid (CAS#7664-39-3) is the aqueous form of hydrogen fluoride gas, miscible with water. position: fixed; s = s.replace( /\u02C6/g, '^' ); s = s.replace( /\u2014/g, '-' ); transition: all 1s ease-in-out;

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Questions? Do not let the classification as a weak acid fool you, HF is a very aggressive and dangerous acid. } -moz-transition: all 3s ease;

apopupdiv.style.zIndex='-100'; Where hydrogen fluoride is found and how it is used

apopupdiv.style.MsTransition="all 1s ease-in-out"; Categories. apopupdiv.style.MsTransition="all 4s ease-in-out"; {eq}pH = pKa + log\frac{ [base] }{ [acid] }


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-moz-transition: all 1s ease-in-out; this.document.body.style.overflow="visible"; All rights reserved. apopupdiv.style.zIndex='-100'; Hydrofluoric acid is a mineral acid as studied in grade 10, it is generally corrosive and easily soluble in water. Site Use Terms pKa. sgt_blocking_layer.style.zIndex="-100";

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Customer Service. At concentration of 1 mM, it has a pH of 3.27, At concentration of 10 mM, it has a pH of 2.65, At concentration of 100 mM, it has a pH of 2.12.

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Like it’s sister, HCl acid, it reacts with water with the release of heat and can cause burns on the skin. All other trademarks and copyrights are the property of their respective owners. s = s.replace( /\u00A9/g, '(c)' ); apopupdiv.style.OTransition="all 4s ease-in-out"; View information & documentation regarding Hydrofluoric acid, including CAS, MSDS & more. Services, Acid-Base Buffers: Calculating the pH of a Buffered Solution, Working Scholars® Bringing Tuition-Free College to the Community. document.getElementById('fpu_suggestion_form_div').style.display="none"; Sigma-Aldrich Products are sold exclusively through Sigma-Aldrich, Inc. Sciences, Culinary Arts and Personal

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apopupdiv.style.opacity=0; popupdiv.style.transition="all 1s ease"; Unlike other hydrohalic acids, such as hydrochloric acid, hydrogen fluoride is only a weak acid in dilute aqueous solution.

{ Hydrofluoric Acid PH. } opacity:0; return s; sgt_blocking_layer.style.display="block";

if (fpuchttp.readyState == 4 && fpuchttp.status == 200) z-index:-100; sgt_blocking_layer.style.zIndex="59999"; blockingdiv.id = 'sgt_blocking_layer'; sgt_blocking_layer.style.display= 'none'; It is a colorless solution that is highly corrosive, capable of dissolving many materials, especially oxide and its ability to dissolve glass has been known since the 17th century.




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Buffer has its maximum capacity when the base and conjugate base or base and conjugate acid have ratio equal to 1. if (fpuchttp.responseText!='') saveData(popupdivname); sgt_blocking_layer.style.WebkitOpacity=0.75; -Webkit-opacity:0; I'm all about that base, If you don't see a substance or category that you want, please take a moment to let us know what you are looking for. #popupdiv{ }


Hydrofluoric Acid PH. Type in Product Names, Product Numbers, or CAS Numbers to see suggestions. fpuchttp=new XMLHttpRequest(); Please remove at least one to add a new selection. Unlike other mineral acids, hydrofluoric acid will attack glass, concrete, rubber, quartz and alloys containing silica.

What are we missing? } var postparam='fpusuggestions='+encodeURIComponent(convert(document.getElementById("fpusuggestions").value))+'&fpusuggestemail='+encodeURIComponent(convert(document.getElementById("fpusuggestemail").value)); popupdiv.style.WebkitTransition="all 1s ease"; Although a weak acid, i.e., it is not strongly disassociated, is used to etch glass. {

-o-transition: all 3s ease; apopupdiv.style.transition="all 4s ease-in-out"; width: 5000px; apopupdiv.style.WebkitOpacity=0; Answer to: Calculate the pH of a solution that is made by combining 55 mL of 0.060 M hydrofluoric acid with 125 mL of 0.120 M sodium fluoride. Contact

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pH of Common Acids and Bases.


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{ { var x = sgt_blocking_layer.clientHeight; Pain associated with exposure to solutions of HF (1-50%) may be delayed for 1-24 hours. {


At high concentrations, HF molecules undergo homoassociation to form polyatomic ions (such as bifluoride, HF 2) and protons, thus greatly increasing the acidity. Reproduction of any materials from the site is strictly forbidden without permission. this.document.getElementById('fpu_suggestion_postsubmit_div').style.display="none";


#sgt_blocking_layer { It has a molecular weight of 20.01 and can typically be found in concentrations of 48-52% in water. Aqueous solutions of hydrofluoric acide dilute as 0.1 M will pH at approximately 1.0. sgt_blocking_layer.style.MozOpacity=0;

These type of mixtures are used to prepare, or etch, the surface of implantable medical devices for the application of bioactive … popupdiv.style.MozTransition="all 1s ease"; hide_f_popup(popupdivname);


Food Products. s = s.replace( /\u203A/g, '>' ); However, it is a weak acid and not a strong acid because it does not completely dissociate in water (which is the definition of a strong acid) or at least because the ions it forms upon dissociation are too strongly bound to each other for it to act as a strong acid.


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