TetraborateIn chemistry, tetraborate or pyroborate is an anion (negative ion) with formula B4O2−7; or a salt containing that anion, such as sodium tetraborate, Na2B4O7. It is one of the boronoxoacids, that is, a borate.
Sodium metaborateSodium metaborate is a chemical compound of sodium, boron, and oxygen with formula NaBO2. However, the metaborate ion is trimeric in the anhydrous solid, therefore a more correct formula is Na3B3O6 or (Na+)3[B3O6]3−. The formula can be written also as Na2O·B2O3 to highlight the relation to the main oxides of sodium and boron.
Disodium octaborateDisodium octaborate is a borate of sodium, a chemical compound of sodium, boron, and oxygen — a salt with elemental formula Na2B8O13 or (Na+)2[B8O13]2−, also written as Na2O·4B2O3. It is a colorless crystalline solid, soluble in water. Disodium octaborate is traded either as a liquid concentrate, or as the tetrahydrate Na2B8O13·4H2O, a white odorless powder.
BoraxBorax (also referred to as sodium borate, tincal and tincar ) is a salt (ionic compound) normally encountered as a hydrated borate of sodium, with the chemical formula Na2H20B4O17. Borax mineral is a crystalline borate mineral that occurs in only a few places worldwide in quantities that enable it to be mined economically. Borax can be dehydrated by heating into other forms with less water of hydration.
MetaborateA metaborate is a borateanion consisting of boron and oxygen, with empirical formulaBO−2. Metaborate also refers to any salt or ester of such anion (e.g. salts such as sodium metaborateNaBO2 or Ca(BO2)2, and esters such as methyl metaborate CH3BO2). Metaborate is one of the boron's oxyanions. Metaborates can be monomeric, oligomeric or polymeric. In aqueous solutions metaborate anion hydrolyzes to tetrahydroxyborate[B(OH)4].
OrthoborateIn inorganic chemistry, an orthoborate is a polyatomicanion with formula [BO3] or a salt containing the anion; such as trisodium orthoborate(Na)3[BO3]. It is one of several boronoxyanions, or borates. The name is also used in organic chemistry for the trivalentfunctional groupB(O−)3, or any compound (ester) that contains it, such as B(OC2H5)3.
BoronBoron is a chemical element; it has symbol B and atomic number 5. In its crystalline form it is a brittle, dark, lustrous metalloid; in its amorphous form it is a brown powder. As the lightest element of the boron group it has three valence electrons for forming covalent bonds, resulting in many compounds such as boric acid, the mineral sodium borate, and the ultra-hard crystals of boron carbide and boron nitride.
OxyanionAn oxyanion, or oxoanion, is an ion with the generic formula AxOy (where 'A' represents a chemical element and 'O' represents an oxygen atom). Oxyanions are formed by a large majority of the chemical elements. The corresponding oxyacid of an oxyanion is the compound HwAxOy. The structures of condensed oxyanions can be rationalized in terms of AOm polyhedral units with sharing of corners or edges between polyhedra.
Trimethyl borateTrimethyl borate is the organoboron compound with the formula B(OCH3)3. It is a colourless liquid that burns with a green flame. It is an intermediate in the preparation of sodium borohydride and is a popular reagent in organic chemistry. It is a weak Lewis acid (AN = 23, Gutmann-Beckett method). Borate esters are prepared by heating boric acid or related boron oxides with alcohols under conditions where water is removed by azeotropic distillation.
EsterIn chemistry, an ester is a compound derived from an acid (either organic or inorganic) in which the hydrogen atom (H) of at least one acidichydroxyl group (−OH) of that acid is replaced by an organyl group (R′). These compounds contain a distinctive functional group. Analogues derived from oxygen replaced by other chalcogens belong to the ester category as well.
Salt (chemistry)In chemistry, a salt or ionic compound is a chemical compound consisting of an assembly of positively charged ions (cations) and negatively charged ions (anions), which results in a compound with no net electric charge. The constituent ions are held together by electrostatic forces termed ionic bonds. The component ions in a salt can be either inorganic, such as chloride (Cl), or organic, such as acetate (CH3COO).
OxygenChemical element with atomic number 8 (O)–↑O↓Snitrogen ← oxygen → fluorine
Borosilicate glassBorosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. The glass has numerous advantages over regular soda–lime glass, including being harder to break when dropped, more resistant to cracking from significant changes in temperature, and having a higher clarity (transparency), which is maintained over a longer period of time. Borosilicate is generally slightly more expensive than soda–lime glass.*As an Amazon Associate I earn from qualifying purchases.