Sentences with phrase «hydrogen fluoride»

Saying the chemical is too much of a risk, the mayors of Duluth and Superior, Wis., are calling on Husky Energy to stop using hydrogen fluoride at the company's Superior refinery following last week's explosion and fire.

When raw phosphate ore is processed into water - soluble phosphate via chemical reaction with sulfuric acid, large amounts of fluoride are vaporized into the air which can contaminate surrounding land with toxic fluoride in the form of hydrogen fluoride and silicon tetrafluoride.

Because hydrogen fluoride molecules break down at high temperatures, the spectra of warmer stars show less of the gas than those of cooler ones do — even if the warmer stars contain just as much fluorine.

The tank containing hydrogen fluoride was not damaged by the explosion or fire and none of the chemical leaked, company officials said.

Officials are exploring different options for the refinery's configuration and may consider removing hydrogen fluoride from the plant's operations, said Kollin Schade, the refinery's manager.

Husky Energy officials said hydrogen fluoride did not leak during the incident last Thursday.

This device can also subject test devices to lethal gases like hydrogen fluoride, sulfur dioxide, and hydrogen chloride, all of which exist in Venus» atmosphere and to which future probes will be exposed.

Then they added hydrogen fluoride molecules and separated the hydrogen atoms from the fluorine atoms with ultraviolet light.

To get to the bottom of this, a chemist recently took bone from the mummy of a Nubian child and dissolved it in hydrogen fluoride, a nasty acid that helps extract tetracycline.

Not only does this reduce the effect of a chemotherapy treatment, but it also creates hydrogen fluoride, a gas that can be harmful both to the patients and to the medical equipment.

This summer, Jönsson used a larger Kitt Peak telescope, the 4 - meter, to observe nearly 100 stars and hopes to measure accurate temperatures and hydrogen fluoride abundances for all.

Using the 2.1 - meter telescope atop Kitt Peak in Arizona, they searched 79 stars for a nasty gas named hydrogen fluoride (HF), which contains the element.

This shows the reaction mechanism for converting hydrogen fluoride (HF) impurity from the electrolyte into lithium fluoride (LiF) in the solid - electrolyte interphase (SEI) with release of hydrogen gas (H2).

Under such conditions, the carbon atoms of the CFCs ended up as carbon monoxide and carbon dioxide, the chlorine atoms as ethyl chloride, and the fluorine atoms as hydrogen fluoride.

The system, made by Linde, splits hydrogen fluoride into fluorine.

A Canadian team had tried hydrogen fluoride because it absorbed light at a large number of discrete wavelengths in the visible spectrum.

Husky Energy in Superior is one of about 50 refineries in the country that still uses hydrogen fluoride to process high - octane gasoline, according to a 2013 report from the...

Based on both experimental and computational results, their findings showed that this phase forms during battery charge by the electrochemical reaction of hydrogen fluoride, producing hydrogen gas and solid lithium fluoride.

Hydrogen fluoride is a highly corrosive chemical that can produce toxic vapor clouds.

Husky Energy in Superior is one of about 50 refineries in the country that still uses hydrogen fluoride to process high - octane gasoline, according to a 2013 report from the United Steelworkers Union.

In addition to ash, the eruptive cloud consisted primarily of vast quantities of sulfur dioxide (SO2), hydrogen chloride (HCl), and hydrogen fluoride gases (HF).

The team discovered a new method for monitoring the concentration of the hydrogen fluoride, a highly detrimental impurity that forms from a reaction between trace amounts of moisture and the salt (LiPF6) in the electrolyte.

Shinoda and his colleagues passed a mixture of ethanol and CFC over a catalyst of activated charcoal, which turned the CFC into carbon dioxide (CO2), carbon monoxide (CO), ethyl chloride (CH3CH2Cl) and hydrogen fluoride (HF).

OIL AND GAS: • Mayors near the recent explosion at a Wisconsin refinery ask the owner to stop using hydrogen fluoride to process gasoline.

In 1783, another Icelandic volcano, Laki, erupted and kept spitting out ash and 120 tons of sulfur dioxide (equal to 3 times the annual industrial output of Europe) and 8 million tons of hydrogen fluoride.

Coal - fired power plant emissions also contain many other toxic elements and compounds, including sulfur dioxide (SO2), nitrous oxides (NOx), particulate matter, hydrogen chloride (HCl), hydrogen fluoride (HF), arsenic, and heavy metals like chromium and cadmium.

These chemicals, similar to those used in the general semiconductor industry, include hydrochloric acid, sulfuric acid, nitric acid, hydrogen fluoride, 1,1,1 - trichloroethane, and acetone.