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Waterless substance
A substance is anhydrous if it contains no water. Many processes in chemistry can be impeded by the presence of water; therefore, it is important that
Anhydrous
Inorganic compound of Iron
available both in anhydrous and in hydrated forms, which are both hygroscopic. They feature iron in its +3 oxidation state. The anhydrous derivative is a
Iron(III)_chloride
Chemical compound
refrigerated vessels; however, at standard temperature and pressure liquid anhydrous ammonia will vaporise. Ammonia readily dissolves in water. In an aqueous
Ammonia
Organic compound
leading producers of ethanol. Gasoline sold in Brazil contains at least 25% anhydrous ethanol. Hydrous ethanol (about 95% ethanol and 5% water) can be used
Ethanol
Chemical compound
chloralkali process. Sodium carbonate is obtained as three hydrates and as the anhydrous salt: sodium carbonate decahydrate (natron), Na2CO3 · 10 H2O, which readily
Sodium_carbonate
Chemical compound
the most commonly encountered hydrate of copper(II) sulfate, while its anhydrous form is white. Older names for the pentahydrate include blue vitriol,
Copper(II)_sulfate
Chemical compound
compounds are mainly used for de-icing and dust control. Because the anhydrous salt is hygroscopic and deliquescent, it is used as a desiccant. Calcium
Calcium_chloride
Class of chemical compounds composed of iron and oxygen
An iron oxide is a chemical compound composed of iron and oxygen. Several iron oxides are recognized. Often they are non-stoichiometric. Ferric oxyhydroxides
Iron_oxide
Chemical compound
formula CoCl2·(H2O)n. These compounds include anhydrous CoCl2 as well as several hydrates. The anhydrous form is a blue solid; the dihydrate is purple
Cobalt(II)_chloride
Chemical compound
generator by dehydrating hydrochloric acid with either sulfuric acid or anhydrous calcium chloride. Alternatively, HCl can be generated by the reaction
Hydrogen_chloride
Chemical compound
structures. Also known are CdCl2·H2O and the hemipentahydrate CdCl2·2.5H2O. Anhydrous cadmium chloride forms a layered structure consisting of octahedral Cd2+
Cadmium_chloride
Chemical compound
[Al(H2O)6]Cl3, containing six water molecules of hydration. Both the anhydrous form and the hexahydrate are colourless crystals, but samples are often
Aluminium_chloride
Chemical compound
compound with the chemical formula CuCl2. The monoclinic yellowish-brown anhydrous form slowly absorbs moisture to form the orthorhombic blue-green dihydrate
Copper(II)_chloride
Chemical compound
the formula Cu(NO3)2·x(H2O). The hydrates are hygroscopic blue solids. Anhydrous copper nitrate forms blue-green crystals and sublimes in a vacuum at 150–200 °C
Copper(II)_nitrate
Colorless flammable liquid with an ammonia-like odor
he was unable to obtain pure hydrazine, despite repeated efforts. Pure anhydrous hydrazine was first prepared by the Dutch chemist Lobry de Bruyn in 1895
Hydrazine
Chemical compound with formula MgSO4
production increasing to approximately 2.6 million tons in 2024. The anhydrous form and several hydrates occur in nature as minerals, and the salt is
Magnesium_sulfate
Chemical derived from gypsum used in food and industry
the chemical formula CaSO 4. It occurs in several hydrated forms; the anhydrous state (known as anhydrite) is a white crystalline solid often found in
Calcium_sulfate
Chemical compound
electricity during production of disposable cotton pads.[citation needed] Anhydrous sodium acetate is widely used as a shelf-life extending agent and pH control
Sodium_acetate
Chemical compound
phosphoric acid, precipitating the dihydrate as a solid. At 60 °C the anhydrous form is precipitated: H3PO4 + Ca(OH)2 → CaHPO4 +2H2O To prevent degradation
Dicalcium_phosphate
Index of chemical compounds with the same name
2[B(OH)3]. The elemental formula was often interpreted as a z-hydrate of an "anhydrous" salt without any hydrogen, namely Na2xB2yO3y·zH2O. However, later research
Sodium_borate
Chemical compound
the empirical formula C10H14N2O4·H2O and a molecular weight of 244.3 (anhydrous). It is a white, crystalline compound that is slightly soluble in water
Carbidopa
Yellow waxy substance secreted by the sebaceous glands of wool-bearing animals
used for this. Anhydrous liquid lanolin, combined with parabens, has been used in trials as artificial tears to treat dry eye. Anhydrous lanolin is also
Lanolin
Chemical compound
original green crystals are converted into a white anhydrous solid. When further heated, the anhydrous material decomposes into sulfur dioxide and sulfur
Iron(II)_sulfate
Chemical compound
formula AlF3. It forms hydrates AlF3·xH2O. Anhydrous AlF3 and its hydrates are all colorless solids. Anhydrous AlF3 is used in the production of aluminium
Aluminium_fluoride
Chemical compound with formula Na2SO4
the Kraft process of paper pulping for making highly alkaline sulfides. Anhydrous sodium sulfate, known as the rare mineral thénardite, used as a drying
Sodium_sulfate
Chemical compound
medication. Sodium picosulfate used in combination with magnesium oxide and anhydrous citric acid is indicated for cleansing of the colon as a preparation for
Sodium_picosulfate
Sodium salts of phosphoric acid
these salts are known in both anhydrous (water-free) and hydrated forms. The hydrates are more common than the anhydrous forms. Sodium phosphates have
Sodium_phosphate
Suspensions of fine amorphous silica particles in a liquid
Colloidal silicas are suspensions of fine amorphous, nonporous, and typically spherical silica particles in a liquid phase. It may be produced by Stöber
Colloidal_silica
Chemical compound
Phosphorus pentoxide is a chemical compound with molecular formula P4O10 (with its common name derived from its empirical formula, P2O5). This white crystalline
Phosphorus_pentoxide
Chemical compound
other strong oxidizers. Two polymorphs are known as pentahydrate. The anhydrous salt exists in several polymorphs. In the solid state, the thiosulfate
Sodium_thiosulfate
Chemical compound
ZnCl2·nH2O, with n ranging from 0 to 4.5, forming hydrates. Zinc chloride, anhydrous and its hydrates, are colorless or white crystalline solids, and are highly
Zinc_chloride
Boron compound, a salt of boric acid
dehydrated by heating into other forms with less water of hydration. The anhydrous form of borax can also be obtained from the decahydrate or other hydrates
Borax
Chemical compound
and lead metal: Cu(OAc)2 + Pb → Cu + Pb(OAc)2 The crystal structure of anhydrous lead(II) acetate has been described as a 2D coordination polymer. In comparison
Lead(II)_acetate
Chemical compound
117.146 Appearance White solid Melting point 293 °C (559 °F; 566 K) (anhydrous, decomposes) Solubility in water Soluble Solubility Methanol Acidity (pKa)
Trimethylglycine
Inorganic salt: MgCl2 and its hydrates
solutions, both of which occur in nature, have a variety of practical uses. Anhydrous magnesium chloride is the principal precursor to magnesium metal, which
Magnesium_chloride
Chemical compound
above these temperatures an orthorhombic hexahydrate forms. The yellow anhydrous form, NiSO4, crystallizes in orthorhombic crystal system and at standard
Nickel(II)_sulfate
Chemical compound
chloride (or just nickel chloride) is the chemical compound NiCl2. The anhydrous salt is yellow, but the more familiar hydrate NiCl2·6H2O is green. Nickel(II)
Nickel(II)_chloride
Chemical compound
Cu3(PO4)2. It can be regarded as the cupric salt of phosphoric acid. Anhydrous copper(II) phosphate and a trihydrate are blue solids. Copper(II) phosphate
Copper(II)_phosphate
Chemical compound
research. It is a white solid that is highly soluble in water and alcohols. Anhydrous lanthanum(III) chloride can be produced by the ammonium chloride route
Lanthanum(III)_chloride
Chemical compound
is a dry granular product that can be safely shipped and stored. The anhydrous form is hygroscopic. Solutions of sodium bisulfate are acidic, with a
Sodium_bisulfate
2021 disappearance of 52-year-old Michigan woman
Warner’s Paragon Road property. The body was discovered in a resealed anhydrous tank, similar to a residential propane storage tank. On March 10, 2026
Disappearance of Dee Ann Warner
Disappearance_of_Dee_Ann_Warner
Chemical compound
Panobinostat, sold under the brand name Farydak, is a medication used for the treatment of multiple myeloma. It is a hydroxamic acid and acts as a non-selective
Panobinostat
Terpene hydrocarbon
is possible to effect reaction at one of the double bonds selectively. Anhydrous hydrogen chloride reacts preferentially at the disubstituted alkene, whereas
Limonene
Chemical compound
commonly occurs as the dihydrate Zn(CH3CO2)2·2H2O. Both the hydrate and the anhydrous forms are colorless solids that are used as dietary supplements. When
Zinc_acetate
Chemical compound
formula IrCl3. The anhydrous compound is relatively rare, but the related hydrate is much more commonly encountered. The anhydrous salt has two polymorphs
Iridium(III)_chloride
Substance containing water or its constituent elements
A substance that does not contain any water is referred to as anhydrous. Some anhydrous compounds are hydrated so easily that they are said to be hygroscopic
Hydrate
Chemical compound
boiling off the remaining nitric and hydrochloric acids.[citation needed] Anhydrous perchloric acid is synthesized by the vacuum distillation of a mixture
Perchloric_acid
Central nervous system stimulant
because these cations are one of the main species in an acidic medium. Pure anhydrous caffeine is a bitter-tasting, white, odorless powder with a melting point
Caffeine
Chemical compound
produce the anhydrous form, but instead forms a basic mercury perchlorate. The anhydrous form is produced by dehydrating the dihydrate with anhydrous perchloric
Mercury(II)_perchlorate
Chemical compound
carbonate is an inorganic compound, with a chemical formula of Pr2(CO3)3. The anhydrous form is olive green, and many of its hydrates such as heptahydrate and
Praseodymium(III)_carbonate
Chemical compound
soluble in water (giving an alkaline solution) but not in alcohols. In the anhydrous solid, the metasilicate anion is actually polymeric, consisting of corner-shared
Sodium_metasilicate
Chemical compound
dichloride salt of manganese, MnCl2. This inorganic chemical exists in the anhydrous form, as well as the dihydrate (MnCl2·2H2O) and tetrahydrate (MnCl2·4H2O)
Manganese(II)_chloride
Chemical compound
hydroxide is an inorganic compound with the formula LiOH. It can exist as anhydrous or hydrated, and both forms are white hygroscopic solids. They are soluble
Lithium_hydroxide
Simplest dicarboxylic acid. (COOH)2
catalyst. The dihydrate can be converted to the anhydrous form by heating or azeotropic distillation. Anhydrous oxalic acid exists as two polymorphs; in one
Oxalic_acid
Chemical compound
magnesium citrate. The substance may come as anhydrous or hydrated salt with varying properties. The anhydrous salt has good solubility in water (~10% or
Magnesium_citrate_(3:2)
Highly corrosive mineral acid
nitrogen dioxide increases the density of the aqueous and the anhydrous acid, anhydrous nitric acid containing 25% NO2 has a density of around 1.60 g/cm3
Nitric_acid
Chemical compound
that absorbs moisture to form the pale-green monohydrate, though the anhydrous and monohydrate forms are typically each synthesized by separate methods
Manganese(III)_phosphate
Chemical compound
an item of commerce TSP is often partially hydrated and may range from anhydrous Na3PO4 to the dodecahydrate Na3PO4·12H2O. Most often it is found in white
Trisodium_phosphate
Chemical compound
and wastewater treatment plants, and also in paper manufacturing. The anhydrous form occurs naturally as a rare mineral millosevichite, found for example
Aluminium_sulfate
Chemical compound
inorganic compounds with the formula MoO3(H2O)n where n = 0, 1, 2. The anhydrous compound is produced on the largest scale of any molybdenum compound since
Molybdenum_trioxide
Chemical compound
concentrated nitric acid. Neither anhydrous nor monohydrate has been confirmed by X-ray crystallography. The anhydrous material is more widely used.[clarification
Mercury(II)_nitrate
Chemical compound
ions. It exists in the anhydrous and dihydrate states. At room temperature, it exists as a golden-orange solid. The anhydrous and dihydrate forms are
Sodium_tetrachloroaurate
Chemical compound
anhydrous FeCl2. The net reaction is shown: Fe + 2 HCl → FeCl2 + H2 FeBr2 and FeI2 can be prepared analogously. An alternative synthesis of anhydrous
Iron(II)_chloride
Mixtures of common ethanol fuel types
fuel mixtures are in use around the world. The use of pure hydrous or anhydrous ethanol in internal combustion engines (ICEs) is only possible if the
Common_ethanol_fuel_mixtures
Chemical compound
the formula HN4CNH2. It is a white solid that can be obtained both in anhydrous and hydrated forms. The molecule is planar. The hydrogen bonding pattern
5-Aminotetrazole
Chemical compound
consisting of plutonium(III) (Pu3+) and oxalate (C2O2−4) ions, with the anhydrous form having a chemical formula Pu2(C2O4)3. It forms hydrates, which have
Plutonium(III)_oxalate
Chemical compound
compounds with formula Fe(CH3CO2)2·(H2O)x where x can be 0 (anhydrous) or 4 (tetrahydrate). The anhydrous compound is a white solid, although impure samples can
Iron(II)_acetate
Organic ammonia derivative
tetrahydrofuran, or water, or as the anhydrous gas in pressurized metal containers. Industrially, methylamine is transported in its anhydrous form in pressurized railcars
Methylamine
Chemical compound
phosphates, it is a common industrial chemical. The salt exists in an anhydrous form, as well as monohydrate and dihydrate (NaH2PO4·H2O and NaH2PO4·2H2O
Monosodium_phosphate
Local anaesthetic drug
Bupivacaine, sold under the brand name Marcaine among others, is a medication used to decrease sensation in a specific small area. In nerve blocks, it
Bupivacaine
Chemical compound
CrCl3·5H2O) or 6 (chromium(III) chloride hexahydrate CrCl3·6H2O). The anhydrous compound with the formula CrCl3 are violet crystals, while the most common
Chromium(III)_chloride
Chemical compound
mainly of interest by researchers, unlike the related iron(III) chloride. Anhydrous iron(III) fluoride is white, whereas the hydrated forms are light pink
Iron(III)_fluoride
Chemical compound
is known in anhydrous form as well as hydrates Na2HPO4·nH2O, where n is 2, 7, 8, and 12. All are water-soluble white powders. The anhydrous salt is hygroscopic
Disodium_phosphate
Migraine medication by Pfizer
hydrochloride 6.25 mg. Other ingredients: magnesium stearate, colloidal anhydrous silica, stearic acid, pregelatinised maize starch, gelatin, hypromellose
Migraleve
Chemical compound
synthesized by combining a strontium salt with a strong base. Sr(OH)2 exists in anhydrous, monohydrate, heptahydrate, and octahydrate form. Because Sr(OH)2 is only
Strontium_hydroxide
Chemical compounds between a lanthanide element and chlorine
Myriad mixed ligand complexes are known. In terms of their structures, anhydrous trichlorides follow two main motifs, UCl3 and YCl3. The UCl3 structure
Lanthanide_chlorides
Chemical compound
Lead(IV) oxide, commonly known as lead dioxide, is an inorganic compound with the chemical formula PbO2. It is an oxide where lead is in an oxidation state
Lead_dioxide
Chemical compound
exists as an anhydrous and a hydrate (BaI2(H2O)2), both of which are white solids. When heated, hydrated barium iodide converts to the anhydrous salt. The
Barium_iodide
Chemical compound
thorium and nitric acid with the formula Th(NO3)4. A white solid in its anhydrous form, it can form tetra- and pentahydrates. As a salt of thorium it is
Thorium(IV)_nitrate
Chemical compound
ethanoate is the systematic name. An older name is acetate of lime. The anhydrous form is very hygroscopic; therefore the monohydrate (Ca(CH3COO)2·H2O)
Calcium_acetate
Mobile methamphetamine laboratory used to evade law enforcement detection
be, as demonstrated in November 2001, when a rolling meth lab carrying anhydrous ammonia exploded on Interstate 24 in Kentucky, prompting law enforcement
Rolling_meth_lab
Chemical compound
image ChemSpider (anhydrous): 76095 (hexahydrate): 149371 ECHA InfoCard 100.034.772 EC Number (anhydrous): 238-266-7 PubChem CID (anhydrous): 10908382 (hexahydrate):
Tris(bipyridine)ruthenium(II) chloride
Tris(bipyridine)ruthenium(II)_chloride
Naturally produced monosaccharide
high-fructose corn syrup. Anhydrous dextrose, on the other hand, is glucose that does not have any water molecules attached to it. Anhydrous chemical substances
Glucose
Carbonate mineral (CaMg(CO3)2)
Dolomite (/ˈdɒl.əˌmaɪt, ˈdoʊ.lə-/) is an anhydrous carbonate mineral composed of calcium magnesium carbonate, ideally CaMg(CO3)2. The term is also used
Dolomite_(mineral)
Chemical compound
CeCl3·7H2O are known. All forms are highly soluble in water, and the anhydrous derivative is soluble in ethanol and acetone. Simple rapid heating of
Cerium(III)_chloride
American chemical manufacturer
a plant where the hydrogen gas from the process will be converted to anhydrous ammonia. Monolith was founded by Robert Hanson and Pete Johnson in 2012
Monolith_Inc.
Chemical compound
(iron(II) oxalate) refers to the inorganic compound with the formula FeC2O4 (anhydrous) or FeC2O4·2H2O (dihydrate). These are yellow compounds. Characteristic
Iron(II)_oxalate
Solution of hydrogen fluoride in water
stronger solutions are available. In industry, it is less important than its anhydrous derivative hydrogen fluoride but in the laboratory it is a more common
Hydrofluoric_acid
Chemical compound
OC(NHCO)2C(OH)2. It is classified as a derivative of pyrimidine. The anhydrous derivative OC(NHCO)2CO is also known, as well as a dimeric derivative
Alloxan
Chemical compound
years in the areas of inorganic synthesis and homogeneous catalysis. The anhydrous and octahydrate forms are both blue solids insoluble in water. The octahydrate
Cobalt(II)_cyanide
Chemical compound
reaction of chlorine gas with tin at 115 °C (239 °F): Sn + 2Cl2 → SnCl4 Anhydrous tin(IV) chloride solidifies at −33 °C (−27 °F) to give monoclinic crystals
Tin(IV)_chloride
Chemical compound
and chloride. It exists in two forms, the hydrate (YCl3(H2O)6) and an anhydrous form (YCl3). Both are colourless salts that are highly soluble in water
Yttrium(III)_chloride
Caustic soda, with formula NaOH
often this monohydrate, and published data may refer to it instead of the anhydrous compound. As one of the simplest hydroxides, sodium hydroxide is frequently
Sodium_hydroxide
Chemical compound
Anhydrous magnesium acetate has the chemical formula Mg(CH3COO)2 and in its hydrated form, magnesium acetate tetrahydrate, it has the chemical formula
Magnesium_acetate
Chemical compound
spectrum and with a first-order life-time of ca. 20 ms at 37 °C. Solid anhydrous carbonic acid has also been isolated. The interconversion of carbon dioxide
Carbonic_acid
Chemical compound
lies between 0 (anhydrous form) and 0.44. One of these species is found as the secondary mineral moolooite (0.44 hydrate). The anhydrous compound has been
Copper(II)_oxalate
Chemical compound
chemical compound with the formula Mn(ClO4)2. It forms a white-colored anhydrous and a rose-colored hexahydrate, both of which are hygroscopic. As a perchlorate
Manganese(II)_perchlorate
Chemical compound
"ChemIDplus - 68-04-2 - HRXKRNGNAMMEHJ-UHFFFAOYSA-K - Sodium citrate anhydrous - Similar structures search, synonyms, formulas, resource links, and other
Trisodium_citrate
Chemical compound
product contains some water (~11.7% wt as the HOBt monohydrate crystal). Anhydrous HOBt is explosive. It is mainly used to suppress the racemization and
Hydroxybenzotriazole
Chemical compound
hydrated, e.g. Na4EDTA.4H2O. The properties of solutions produced from the anhydrous and hydrated forms are the same, provided they are at the same pH. It
Tetrasodium_EDTA
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