| Chip production involves some pretty noxious substances, such as the decidedly nasty hydrofluoric acid used to etch the silicon wafers. |
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| Toxic gases may be emitted, and poisoning from carbon monoxide, hydrofluoric acid, and sulphur dioxide can occur. |
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| White quartz frequently coats the fluorite crystals and can be removed with hydrofluoric acid. |
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| Light olefins from the fluid catalytic cracker are processed in either hydrofluoric or sulfuric acid units. |
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| It is also used to make hydrofluoric acid, which is then used to make fluorocarbons such as Teflon. |
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| The samples were dissolved in hot hydrofluoric acid and analyzed for lead by atomic absorption spectrophotometry. |
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| Seventy or so years ago I learnt from Popular Mechanics that hydrofluoric acid is used for etching glass. |
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| The cleaning materials have to be free of hydrochloric acid and hydrofluoric acid and must not be abrasive. |
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| Offers good resistance to hydrofluoric acid gases, sudden temperature changes, and mechanical agents. |
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| Dissolves slowly in hydrofluoric acid and in hot concentrated sulfuric acid. |
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| An elegant engineering solution virtually eliminated all hydrofluoric acid waste. |
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| Fluorspar is used essentially as a feedstock in the manufacture of hydrofluoric acid. |
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| However, the cleaning materials must be free of hydrochloric or hydrofluoric acid and should not scratch the surface. |
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| Incompatibility with other substances: Will dissolve in hydrofluoric acid to form the corrosive gas, silicon tetrafluoride. |
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| This material is incompatible with strong bases and can react to form salts of hydrofluoric acid and unsaturated compounds of unknown toxicity. |
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| One of the gases the volcano threw up was fluorine, which fell quickly back to earth as hydrofluoric acid. |
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| Highly explosive, toxic corrosive hydrofluoric acid would be released if UF6 were to leak and come into contact with humidity. |
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| Resistant to gases containing hydrofluoric acid, to alkaline fumes, to oxidizing, reducing, neutral atmospheres, and to temperature changes. |
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| Correct with diluted sodium hydroxide solution or hydrofluoric acid as necessary. |
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| This new acid is over 100 trillion times more acidic than swimming pool water, and more acidic than hydrofluoric acid but it won't eat through glass. |
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| In this regard, we should point out that grès is resistant to all chemicals, with the exception of hydrofluoric acid, which is harmful to all ceramic products. |
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| Process for the manufacture of difluoromethane by gas-phase catalytic fluorination of methylene chloride by means of anhydrous hydrofluoric acid, characterized in that the operation is carried out in the presence of chlorine. |
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| The nitric and hydrofluoric acid steps were repeated 3 times due to undissolved materials. |
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| Strong hydrofluoric acid solutions produce an immediate local skin burn. |
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| It does not react with hydrofluoric, hydrochloric, hydrobromic, hydriodic, sulfuric, or nitric acid. |
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| Hydrocarbons should be kept away from fluorine compounds due to the high probability of forming toxic hydrofluoric acid. |
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| Acid gas scrubbers are used to remove hydrochloric acid, nitric acid, hydrofluoric acid, mercury, lead and other heavy metals. |
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| Resistant to fluoride fumes, hydrofluoric acid. |
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| The hydrofluoric acid forms an azeotrope with water, and is distilled over steam. |
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| Same with all the ampoules of hydrofluoric acid. |
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| Changshu's hydrofluoric acid production unit uses selective collection and distillation of wastewater to recover sodium salts, which are recycled for use in offsite cement production. |
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| Naugatuck expanded its product lines to include nitric acid, muriatic acid, hydrofluoric acid, acetic acid, nitrobenzene, aniline and antimony sulphides. |
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| Hydrofluoric acid is the only solvent you'll find to etch glass. |
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