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WHAT DOES HYDROFLUORIC ACID MEAN IN ENGLISH?
Hydrofluoric acid is a solution of hydrogen fluoride in water. It is a precursor to almost all fluorine compounds, including pharmaceuticals such as fluoxetine, diverse materials such as PTFE, and elemental fluorine itself. It is a colourless solution that is highly corrosive, capable of dissolving many materials, especially oxides. Its well known ability to dissolve glass has been known since the 17th century, even before Carl Wilhelm Scheele prepared it in large quantities in 1771. Because of its high reactivity toward glass and moderate reactivity toward many metals, hydrofluoric acid is usually stored in plastic containers. Hydrogen fluoride gas is an acute poison that may immediately and permanently damage lungs and the corneas of the eyes. Aqueous hydrofluoric acid is a contact-poison with the potential for deep, initially painless burns and ensuing tissue death. By interfering with body calcium metabolism, the concentrated acid may also cause systemic toxicity and eventual cardiac arrest and fatality, after contact with as little as 160 cm2 of skin.
The translations of hydrofluoric acid from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «hydrofluoric acid» in English.
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «hydrofluoric acid».
FREQUENCY OF USE OF THE TERM «HYDROFLUORIC ACID» OVER TIME
The graph expresses the annual evolution of the frequency of use of the word «hydrofluoric acid» during the past 500 years. Its implementation is based on analysing how often the term «hydrofluoric acid» appears in digitalised printed sources in English between the year 1500 and the present day.
Examples of use in the English literature, quotes and news about hydrofluoric acid
10 ENGLISH BOOKS RELATING TO «HYDROFLUORIC ACID»
Discover the use of hydrofluoric acid in the following bibliographical selection. Books relating to hydrofluoric acid and brief extracts from same to provide context of its use in English literature.
Handbook of Corrosion Data
blistering and stepwise cracking in the presence of either aqueous or anhydrous
hydrofluoric acid. Corrosion of steel by nonoxidizing acids is accompanied by the
formation of atomic hydrogen, which then either combines to form gaseous ...
Bruce D. Craig, David S. Anderson, 1994
Various other fluorides besides that of chromium evolve much hydrofluoric acid
when heated. A very weak acid became concentrated to a large extent by
desiccation over strong sulphuric acid in a closed leaden chamber at 60° Fahr. ;
but as ...
G. Gore, 1869
A Manual for the Chemical Analysis of Metals
Mixtures of Hydrofluoric Acid and Nitric Acid — These are extremely effective
solvents for a wide range of metals and alloys, including titanium, niobium,
tantalum, and other metals that are impervious to aqua regia. Platinum does not
Thomas R. Dulski, 1996
Preconcentration Techniques For Trace Elements
Acids The usual acid is hydrofluoric acid which readily dissolves aluminosilicates
. Its dissolving power increases sharply with temperature. The dissolution time is
reduced by the use of Teflon-lined steel closed vessels which combine high ...
Zeev Alfassi, Chien M. Wai, 1991
Titanium: A Technical Guide
Table 11.2 Corrosion of titanium in sulfuric acid pickle baths A nitric-hydrofluoricacid solution, which is the final stage brightening in most alloy cleaning lines,
should be maintained at a minimum ratio of 15 parts nitric acid to 1 part
Matthew J. Donachie, 2000
From its small Ka value, we know that hydrofluoric acid is a weak acid and will be
dissociated only to a slight extent. Thus when we write the major species, the
hydrofluoric acid will be represented in its dominant form, as HF. The major ...
Steven Zumdahl, 2007
Handbook of Semiconductor Manufacturing Technology, Second ...
The etching of silicon oxides by hydrofluoric acid solutions are among the most
prevalent and time- honored reactions in semiconductor processing. Silicon
dioxide (SiO2) is rendered soluble by conversion to the silicon hexafluoride ion ...
Yoshio Nishi, Robert Doering, 2007
Advocates of the hydrofluoric acid process argue that both capital and total
operating costs are less than those of sulfuric acid processes for the following
reasons: 1. Smaller and simpler reactor designs are feasible. 2. Cooling water
can be ...
James H. Gary, Glenn E. Handwerk, 2001
Chemistry: Principles and Reactions
... kg/yr) and HCl (3 3 109 kg/yr). They are most familiar as water solutions,
referred to as hydrofluoric acid and hydrochloric acid, respectively. Recall (
Chapter 13) that hydrofluoric acid is weak, incompletely dissociated in water,
whereas HCl is ...
William Masterton, Cecile Hurley, Edward Neth, 2011
Keeping It Clean: Removing Exterior Dirt, Paint, Stains and ...
Acidic cleaning is a two-part process: first, the acid cleansing solution is applied
to the pre- wet masonry surface. After completing its action, the acid solution is
then removed from the masonry by a thorough water rinse. Hydrofluoric acid is
Anne E. Grimmer, 1992
10 NEWS ITEMS WHICH INCLUDE THE TERM «HYDROFLUORIC ACID»
Find out what the national and international press are talking about and how the term hydrofluoric acid is used in the context of the following news items.
Hydrofluoric acid burns 6 Eden Prairie firefighters, gear now qu …
Esbensen believes six fighters were burned by hydrofluoric acid, a very dangerous chemical that burns through skin. Now, $100,000 worth of ... «FOX 9 News, Jul 15»
DuPont Safety Practices Under Increased Scrutiny · Environmental …
... DuPont issued a statement saying that the latest round of OSHA citations are the result of a review of the herbicide and hydrofluoric acid (HF) ... «Environmental Leader, Jul 15»
Honeywell Solstice Refrigerants Approved For Use By U.S. …
... makers worldwide, and blowing agents for energy-efficient foam insulation, as well as hydrofluoric acid and precursors for nuclear fuel. «MarketWatch, Jul 15»
OSHA Revisits DuPont Facility Where Four Workers Died, Issues …
... saying in a statement that the OSHA citations are a result of the review of the herbicide and hydrofluoric acid (HF) units at the La Porte site. «EHS Today, Jul 15»
OSHA cites DuPont over safety concerns
DuPont defended its response to the tragedy and OSHA's most recent complaints about the herbicide and hydrofluoric acid units at the Texas ... «Philly.com, Jul 15»
Fond of Bonds: Our Chemical of The Week is Chlorine Trifluoride
But even more concerning, when chlorine trifluoride comes into contact with water, it can release highly toxic gases including hydrofluoric acid ... «Chem.Info, Jul 15»
OSHA labels DuPont 'severe' safety violator
DuPont said that this week's new OSHA citations were issued a result of an agency review of the herbicide and hydrofluoric acid units at the La ... «Charleston Gazette, Jul 15»
OSHA labels DuPont a severe violator after four killed in Texas
Woods said DuPont officials separately have reviewed procedures at the site's herbicide and hydrofluoric acid (HF) units and are addressing ... «Chron.com, Jul 15»
Siting agreement amended for US deconversion plant
As well as producing specialist fluoride gases for a variety of industrial applications, the plant will also produce anhydrous hydrofluoric acid ... «World Nuclear News, Jul 15»
Chlorine Trifluoride: The Chemical That Sets Fire To Asbestos On …
... react explosively with it and as a fun byproduct creates large amounts of dangerous gasses such as hydrofluoric acid and hydrochloric acid. «Gizmodo Australia, Jul 15»
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