![]() The hydrated salts of chromium sulfate can also be produced, albeit impure, by extraction of various other chromium compounds, but these routes are not economically viable. Evaporation of these acidic solutions affords the hydrate salt described above. A chromium(III) oxide coproduct is generated which is readily extracted into sulfuric acid. Anthroquinone and quinone are produced on large scale by treatment of anthracene and phenol with chromic acid. The most useful source of chromium(III) sulfate are the Cr(III) wastes from the chromate oxidation of various organic compounds. Structure of Cr(SO 4)(H 2O)(OH), showing the CrO 6 coordination sphere typical of many chromium(III) compounds. Other chromium(III) hydroxides have been reported. ![]() It results from the partial neutralization of the hexahydrates. Most important commercially is basic chromium sulfate, which is thought to be SO 4 (CAS#3). Further heating yields the anhydrous sulfate.Ī variety of other chromium(III) sulfates are known, but also contain hydroxide or oxide ligands. It is obtained by heating the 18-hydrate material above 70 ☌. Hydrated chromium(III) sulfate, Cr 2(SO 4) 3♱5(H 2O), (CAS #1) is a green solid that also readily dissolves in water.Six of the eighteen water molecules in this formula unit are water of crystallization. The formula of this compound can be written more descriptively as 2(SO 4) 3♶H 2O. Hydrated chromium(III) sulfate, Cr 2(SO 4) 3♱8H 2O, (CAS #1) is a violet solid that readily dissolves in water to give the metal aquo complex, 3+.Anhydrous chromium(III) sulfate, Cr 2(SO 4) 3, (CAS #1) is a violet solid that dissolves in water upon addition of a reducing agent, which generates chromium(II) sulfates.Three chromium(III) sulfates are well characterized: These salts are usually either violet or green solids that are soluble in water. Additionally, ill-defined but commercially important "basic chromium sulfates" are known. During the Malayan Emergency, he cooperated with the British to promote national unity.Chromium(III) sulfate usually refers to the inorganic compounds with the formula Cr 2(SO 4) 3. ![]() After World War II, he supported the British proposal for a unitary state with common citizenship, which the Malays rejected. Born to a wealthy Chinese family, he campaigned against "pro-Malay" policies and in favour of equal rights for all ethnic groups, whether immigrant or indigenous. 8, 1960, Malacca Malaysian Chinese community leader and politician. Lighter olive skin, or those who get less sun exposure, has a dull pale yellow appearance with a greenish hue to their skin Tan Cheng Lock born April 5, 1883, Malacca, Straits Settlements died Dec. It is sometimes used as a colour terminology for race. Named as such for its olive hue, or sun tanned appearance, it usually refers to a natural skin tone. tan skin Olive, beige, or tan skin (as well as the adjective "swarthy") describes a skin color range of some individuals, who are Caucasian (especially of Mediterranean stock), or Asian. tan lines plural form of tan line tan someone's hide To beat or spank someone His sunglasses left a tan line around his eyes. + tanned tanned Their skin was tanned and glowing from their weeks at the sea (Total) acid number İlgili Terimler tan line the division between skin that has darkened or tanned from exposure to sun and skin that has not been exposed to sun I have very pale skin that never tans Leigh rolled over on her stomach to tan her back. = suntan To get or become tanned of a light yellowish-brown color treat skins and hides with tannic acid so as to convert them into leather If a part of your body tans or if you tan it, your skin becomes darker than usual because you spend a lot of time in the sun. She is tall and blonde, with a permanent tan. Tan teriminin İngilizce Türkçe sözlükte anlamı brownish-yellow having a suntan used to convert animal hide into leather stay (a so him tan = that's how he is) Of the color of tan yellowish- brown If you have a tan, your skin has become darker than usual because you have been in the sun.
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