Definition & Betydelse | Engelska ordet ALKALIS

Definition av ALKALIS

1. böjningsform av alkali

Exempel på hur man kan använda ALKALIS i en mening

• This broad use of the term is likely to have come about because alkalis were the first bases known to obey the Arrhenius definition of a base, and they are still among the most common bases.
• It includes industries for petrochemicals such as polymers for plastics and synthetic fibers; inorganic chemicals such as acids and alkalis; agricultural chemicals such as fertilizers, pesticides and herbicides; and other categories such as industrial gases, speciality chemicals and pharmaceuticals.
• According to a certified analysis the Gate deposit is composed of 73% silica, 14% alumina and smaller amounts of iron, calcium, magnesium and alkalis.
• It is insoluble in water, resistant to alkalis and weak acids, and non-reactive with cement, solvents, oils, and most resins.
• It is highly valued for its superior properties such as light fastness, tinting strength, covering power and resistance to the effects of alkalis and acids.
• Such agents (keratolytics) include alkalis (by swelling and hydrolysis of skin), salicylic acid, urea, lactic acid, allantoin, glycolic acid, and trichloroacetic acid.
• In common with Gay-Lussac and Davy, he held subterraneous thermal disturbances to be probably due to the contact of water with metals of the alkalis and alkaline earths.
• Picrites and komatiites are somewhat similar chemically (defined as >18% MgO), but differ in having 1 to 3% total alkalis and <1% total alkalis respectively.
• In 1680, using the corpuscular theory as a basis, Lemery stipulated that the acidity of any substance consisted in its pointed particles, while alkalis were endowed with pores of various sizes.
• military documents have quoted excerpts suggesting extensive pollution with Vietnam era chemicals stored there, like insecticides including DDT (dichlorodiphenyltrichloroethane) and heavy metals, rodenticides, herbicides, inorganic and organic acids, alkalis, inorganic salts, organic solvents like vapor degreasers and ferric chloride, of which 12.
• The name Nitrobacter derives from the Latin neuter gender noun nitrum, nitri, alkalis; the Ancient Greek noun βακτηρία, βακτηρίᾱς, rod.
• Cleaning is usually achieved by a series of chemical baths, including non-polar solvents to remove oils and greases, as well as acids and alkalis to remove oxides, insoluble organics, and other surface contaminants.
• The acids that may be used are sulfuric, sulfurous, phosphoric, acetic, and citric acids; the alkalis are ammonium, sodium, potassium, and calcium hydroxides; and the salts are ammonium, sodium, and potassium carbonate, bicarbonate, phosphate (including mono- and dibasic), sulfate, and bisulfite.
• This contrasts with peralkaline in which the alkalis are higher, metaluminous where aluminium oxide concentration is lower than the combination, but above the alkalis, and subaluminous in which aluminia concentration is lower than the combination.
• As originally conceived, species within the order had diverse basidiocarp (fruit body) forms, but shared several features in common, notably similarities in basidiospore shape (most having spiny to warted, often lobed spores) and similarities in basidiocarp colours, linked to the presence of thelephoric acid derivatives and often accompanied by blue to greenish reactions with alkalis.
• In 1680, using the corpuscular theory as a basis, French chemist Nicolas Lemery stipulated that the acidity of any substance consisted in its pointed particles, while alkalis were endowed with pores of various sizes.
• Metallic plutonium is attacked by acids, oxygen, and steam but not by alkalis and dissolves easily in concentrated hydrochloric, hydroiodic and perchloric acids.
• Since then, the Gyanawa have been sought after to occupy legal positions such as alkalis, walis and muftis.
• Though no hazardous levels of chemicals were detected and no one aside from three firemen with minor shake injuries were injured, some people said they sensed a metallic taste in their mouths (the company has a rail spur that brings in rail cars carrying solvent-distribution products such as glycol ethers, alcohol, aliphatic hydrocarbons, alkalis, aromatic hydrocarbons, chlorinated solvents, acids, glycol ether esters, surfactants, glycols and glycerins, plasticizers and esters).
• Mobilization of alkalis and of relatively immobile elements including aluminium and rare-earth elements are subsequently incorporated into precipitating cyrilovite, lipscombite and crandallite-group minerals.

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