Sulfurous acid, dipotassium salt

SYN SULFUROUS acid, dipotassium salt CONSENSUS REPORTS Reported in EPA TSCA Inventory. 

SULFURIC ACID, CHROMIUM(3+) SALT (3 2), PENTADECAHYDRATE see CMK425 SULFURIC ACID, COBALT(2+) SALT (1 1) see CNE125 SULFURIC ACID, COPPER(2+) SALT (1 1) see CNP250 SULFURIC ACID, DIAMMONIUM SALT see ANU750 SULFURIC ACID, DIMETHYL ESTER see DUD 100 SULFURIC ACID, DIPOTASSIUM SALT see PLTOOO SULFURIC ACID, DISODIUM SALT see SJYOOO SULFURIC ACID, DITHALLIUM(1+) SALT (SCI, 9CI) see TEMOOO... 

SULFUROUS ACID, DIPOTASSIUM SALT see PLT500 SULFUROUS ACID, cyclic ester with 1,4,5,6,7,7-HEXACHLORO-5-NORBORNENE-2,3-DIMETHANOL see EAQ750... 

Arcanum duplicatum Caswell No. 702 Dipotassium sulfate EINECS 233-558-0 EPA Pesticide Chemical Code 005603 Glazier s salt HSDB 6047 Kalium sulphuricum Potassium sulfate Potassium sulphate Sal Polychrestum Sulfuric acid, dipotassium salt Sulphuric acid, potassium salt Tartarus vitriolatus. Analytical reagent, medicine (cathartic), gypsum cements, fertilizer, manufacture of alum and glass, food additive. Registered by EPA as a herbioide and insecticide. Colorless, hard crystals, mp = 1067° d = 2.66 soluble in H2O (12 g/100 ml at 25°, 25 g/100 ml at 100°),... 

Dipotassium sulfite EINECS 233-321-1 HSDB 5052 Potassium sulfite Potassium sulfite (K2SO3) Potassium sulphite Stahl s sulfur salt Sulfurous acid, dipotassium salt Sulfurous acid, potassium salt. Used as a photographic developer, medicine, in food and wine as a preservative. Laxative-cathartic. Solubie in H2O (28.5 g/100 ml), slightly soluble in EtOH. 

Sulfuric acid, dipotassium salt K2SO4 XVIII.A-1, XX-6 ... 

Potassium sulfate (poe-TAS-ee-yum SUL-fate) is also known as potash of sulfur, sulfuric acid dipotassium salt, arcanum duplicatum, and sal polychrestum. It is a colorless or white granular, crystalline, or powdery solid with a hitter, salty taste. It occurs in nature as the mineral arcanite and in the mineral langheinite (K2Mg2(S04)3). The compound was known to alchemists as early as the fourteenth century, and was analyzed hy a number of early chemists, including Johann Glauber (1604-1670), Robert Boyle (1627-1691), and Otto Tachenius (c. 1620-1690). 

Synonyms Potassium sulfate (2 1) Sulfate of potash Sulfuric acid, dipotassium salt... 

Synonyms Sulfurous acid dipotassium salt Sulfurous acid potassium salt... 

CHROMIC ACID, DIPOTASSIUM SALT (7778-50-9) Noncombustible, but many chemical reactions can cause fire and explosions. A powerful oxidizer. Violent reaction with many substances, including combustible materials, reducing agents, organic materials, finely divided metals, ammonium nitrate, ammonium perchlorate, fluorine, hydrazine, hydrazinium nitrate, hydroxylamine, iron powder, nitric acid, potassium iodide, sodium borohydride, sodium bromide, sodium tetraborate and its decahydrate, tungsten, and zirconium dusts. Mixture with sulfuric acid forms chromic acid. Incompatible with ethylene glycol, iron, tungsten. 

PEROXYDISULFURIC ACID DIPOTASSIUM SALT (7727-21-1) A powerful oxidizer. Noncombustible, but enhances the combustibility or oxidation rate of many materials chemical reactions can cause fire and explosions. Elevated temperatures [>212°F/100°C or >122°F/50°C (in solution)] liberate oxygen, and hydrogen chloride and sulfuric acid vapors. Reacts violently with reducing agents, alcohols, combustible materials, ethers, glycols, organic substances or other readily oxidizable materials, phenyl hydride, sulfur, metallic dusts such as aluminum, magnesium, zirconium, etc. Attacks chemically active metals. 

Disulfur dichloride. See Sulfur chloride Disulfurous acid dipotassium salt. See Potassium metabisulfite Disulfurous acid disodium salt. See Sodium metabisulfite... 

The ethyl ester can also be prepared from ethyl acetoacetate (ethyl 3-oxobutanoate) by the method of Rodionov8 as well as via Steinkopf s method.3 Ethyl nitroacetate can be prepared in >70% yields from the dipotassium salt, ethanol, and sulfuric acid, with the addition of anhydrous magnesium sulfate in order to avoid the Nef reaction.9 The propyl and 2-propyl esters can also be obtained by this method. 

Dipotassium tin bis(sulphate) EINECS 248-659-5 Marignac s salt Potassium stannosulfate Sulfuric acid, potassium tin(2+) salt (2 2 1). Solid decomposed by H2O. 

Add with stirring over 1 Vz hours 192 g powdered anhydrous citric acid in 32 g portions to 202 ml (383 g) fuming sulfuric acid (21%). Make the first two additions at 0° carefully the other four at 15 . Stir one hour at room temperature, and for three hours at 35° and 17 hours at 25°. Add dropwise with stirring below 0°, 500 ml methanol over three hours. Keep about fifteen hours at room temperature and add to a stirred mixture of 700 g NaHCOj, 500 g ice and 200 ml water. Filter, wash precipitate with 150 ml 50% aqueous methanol and extract the filtrate with 7X400 ml ether. Dry and evaporate in vacuum (can distill 85/1) to get 110 g oily dimethyl-beta-ketoglutarate (1). Use this in method 1 or as follows. Dissolve 33.6 g KOH in 150 ml methanol and add dropwise at 0° over Vz hour (or at room temperature over one hour) to 43.5 ml (1) in 10 ml methanol. Let stand three hours at room temperature, add 50 ml ether and refrigerate twelve hours to precipitate the dipotassium salt of monomethyl-beta-ketoglutarate (II). Dissolve 10 g succindialdehyde in 200 ml water at -5° and add 41 g (II) and... 

Conversion of the tosylamide of 2-(2-tosylhydrazino)nicotinic acid to its dipotassium salt (134) with potassium in butanol, followed by condensation with 1,2-dibromoethane, leads to cyclization to the bicyclic triazocine (135), which can be hydrolyzed in sulfuric acid to yield the parent pyrido[3,2- ][l,2,5]triazocine-6-one (30), as outlined in I heme 26 <85PJCII15>. 

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