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CAS No. | 7440-09-7 |
Chemical Name: | Potassium |
Synonyms: | K;Kalium;POTASSIUM;K solution;POTASSIUM ION;POTASSIUM, 2N+;POTASSIUM METAL;Potassium alloy;KALII CHLORDIUM;MURATE OF POTASH |
CBNumber: | CB9251331 |
Molecular Formula: | K |
Formula Weight: | 39.1 |
MOL File: | 7440-09-7.mol |
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Potassium Property |
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density : |
1.98 g/mL at 25 °C(lit.)
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vapor pressure : |
0.09 mm Hg ( 260 °C)
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refractive index : |
n20/D 1.334
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solubility : |
H2O: soluble
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Water Solubility : |
reacts |
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Stability:: |
Stable. Moisture and air-sensitive. Spontaneously combustible through the generation and ignition of hydrogen. Reacts violently with water and acids, alcohols, carbon monoxide. Store under oil. |
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Potassium Chemical Properties,Usage,Production |
Chemical Properties
soft silvery metal, tarnishing upon exposure to air. |
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General Description
Potassium is potassium mixed with some other metal, usually sodium. Potassium is a liquid under normal conditions. Potassium reacts vigorously with water to form potassium hydroxide, a corrosive material and hydrogen, a flammable gas. The heat from this reaction may be sufficient to ignite the hydrogen. Potassium alloy may ignite spontaneously in contact with air. Once ignited, potassium burns quite violently. Potassium is used as a heat exchange fluid. |
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Air & Water Reactions
Reacts vigorously with oxygen. Reacts vigorously with water even at less than 100°C [Merck, 11th ed., 1989]. Water (caustic solution, H2) The oxidation of potassium in air is so rapid that the heat generated by the reaction melts and ignites the metal. This is particularly the case when pressure is applied at ordinary temperatures [Sidgwick 1. 1950]. Potassium burns in moist air at room temperature [Mellor 2:468. 1946-47]. The higher oxides of potassium, formed in air, react explosively with pure potassium, sodium, sodium-potassium alloys, and organic matter [Mellor 2, Supp. 3:1559. 1963]. |
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Reactivity Profile
Boron trifluoride reacts with incandescence when heated with alkali metals or alkaline earth metals except magnesium [Merck 11th ed. 1989]. Maleic anhydride decomposes explosively in the presence of alkali metals . Sodium peroxide oxidizes antimony, arsenic, copper, potassium, tin, and zinc with incandescence . Alkali metal hydroxides, acids, anhydrous chlorides of iron, tin, and aluminum, pure oxides of iron and aluminum, and metallic potassium are some of the catalysts that may cause ethylene oxide to rearrange and polymerize, liberating heat . Explosions occur, although infrequently, from the combination of ethylene oxide and alcohols or mercaptans [Chem. Eng. News 20:1318. 1942]. A mixture of potassium and any of the following metallic halides produces a strong explosion on impact: aluminum chloride, aluminum fluoride, ammonium fluorocuprate, antimony tribromide, antimony trichloride, antimony triiodide, cadmium bromide, cadmium chloride, cadmium iodide, chromium tetrachloride, cupric bromide, cupric chloride, cuprous bromide cuprous chloride, cuprous iodide, manganese chloride, mercuric bromide, mercuric chloride, mercuric fluoride, mercuric iodide, mercurous chloride, nickel bromide, nickel chloride, nickel iodide, silicon tetrachloride, silver fluoride, stannic chloride, stannic iodide (with silver), stannous chloride, sulfur dibromide, thallous bromide, vanadium pentachloride, zinc bromide, zinc chloride, and zinc iodide [Mellor 2, Supp. 3:1571. 1963]. A mixture of potassium and any of the following compounds produces a weak explosion on impact: ammonium bromide, ammonium iodide, cadmium fluoride, chromium trifluoride, manganous bromide, manganous iodide, nickel fluoride, potassium chlorocuprate, silver chloride, silver iodide, strontium iodide, thallous chloride, and zinc fluoride [Mellor 2, Supp. 3:1571. 1963]. A mixture of potassium and any of the following compounds may explode on impact: boric acid, copper oxychloride, lead oxychloride, lead peroxide, lead sulfate, silver iodate, sodium iodate, and vanadium oxychloride [Mellor 2, Supp. 3:1571. 1963]. A mixture of potassium with any of the following compounds produces a very violent explosion on impact: boron tribromide, carbon tetrachloride, cobaltous bromide, cobaltous chloride, ferric bromide, ferric chloride, ferrous bromide, ferrous chloride, ferrous iodide, phosphorus pentachloride, phosphorus tribromide, and sulfur dichloride [Mellor 2, Supp. 3:1571. 1963]. Mixture of solid potassium and carbon dioxide(as dry ice) explodes when subjected to shock [Mellor 2, Supp. 3:1568. 1963]. Potassium and its alloys form explosive mixtures with chlorinated hydrocarbons [Chem. Eng. News 26:2604. 1948]. Ethylene oxide is dangerously reactive with metallic potassium [Chemical Safety Data Sheet SD-38:11. 1951]. Potassium in contact with the following oxides causes an explosive reaction: potassium ozonide, potassium peroxide, or potassium superoxide [Mellor 2, Supp. 3:1577. 1963]. |
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Health Hazard
Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution. |
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Fire Hazard
Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard. |
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Potassium Preparation Products And Raw materials |
Raw materials
Bifenthrin
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Preparation Products
Compound fertilizer
(6-CHLORO-1H-INDOL-2-YL)-METHANOL
Isobutylbenzene
6-Chloroindole-2-carboxylic acid ethyl ester
N-BUTYLXANTHIC ACID POTASSIUM SALT
5-METHOXY-1H-PYRROLO[3,2-B]PYRIDINE-2-CARBOXYLIC ACID
6-Chloroindole-2-carboxylic acid
3-(3,4-DIHYDROXYPHENYL)PROPIONIC ACID
ETHYL 1,3-DITHIOLANE-2-CARBOXYLATE
5-Chloroindole
ETHYL 2-(TERT-BUTOXYCARBONYLAMINO)THIAZOLE-5-CARBOXYLATE
(5-METHOXY-1H-PYRROLO[3,2-B]PYRIDIN-3-YL)-N,N-DIMETHYLMETHANAMINE
2-(DIPHENYLPHOSPHINO)ETHYLTRIETHOXYSILANE
4'-(2-Methylpropyl)acetophenone
Foliar-fertilizer
5-(BENZYLOXY)-1H-PYRROLO[3,2-B]PYRIDINE-2-CARBALDEHYDE
Mixed and compound fertilizer
6-CHLORO-1H-INDOLE-2-CARBALDEHYDE
SODIUM 3-4-ISOBUTYLPHENYL)-2,3-EPOXYBUTYURATE
3-Quinuclidinone hydrochloride
3-QUINOLIN-2-YLPROPANOIC ACID
5-METHOXY-1H-PYRROLO[2,3-C]PYRIDINE-2-CARBALDEHYDE
5-METHOXY-1H-PYRROLO[2,3-C]PYRIDINE-2-CARBOXYLIC ACID
POTASSIUM B-METHYOXYETHOXIDE
6-TERT-BUTOXYPYRIDINE-2-CARBOXALDEHYDE
(S)-3-Aminoquinuclidine dihydrochloride
3-Aminoquinuclidine dihydrochloride
Potassium superoxide
cis-DL-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid
Ethyl 2-aminothiazole-5-carboxylate
4-Aminopyrimidine
Water flush fertilizer
2-N-BOC-AMINO-THIAZOLE-5-CARBOXYLIC ACID
5-METHOXY-1H-PYRROLO[3,2-B]PYRIDINE-3-CARBALDEHYDE
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Potassium Suppliers Global( 141)Suppliers |
Supplier | Tel | Fax | Email | Country | ProdList | Advantage |
Meryer (Shanghai) Chemical Technology Co., Ltd.
| +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) | +86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) | sh@meryer.com | CHINA |
40407
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62
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Alfa Aesar
| 400-610-6006; 021-67582000 | 021-67582001/03/05 | saleschina@alfa-asia.com | CHINA |
30333
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84
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BeiJing Hwrk Chemicals Limted
| 4006990298 010-57411839 020-31335234 021-51691807 | 010-87653215 0757-86311057 021-55236763 | sales@hwrkchemical.com | CHINA |
12649
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Energy Chemical
| 021-58432009 / 400-005-6266 | 021-58436166-800 | info@energy-chemical.com | CHINA |
44198
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Beijing Ouhe Technology Co., Ltd
| +86-10-4006331231;+86-10-51280831;+86-10-82967028 | +86-10-82967029 | sales@ouhechem.com | CHINA |
10815
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Shanghai Hanhong Chemical Co., Ltd.
| 021-61521197,021-60496702,021-54302127,021-54306202,021-61525701,021-54308259 | +86-21-54291107 | jerry.ma@hanhonggroup.com | CHINA |
28730
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Chengdu XiYa Chemical Technology Co., Ltd.
| 4008-626-111 | 028-84752058 | sale@xiyashiji.com | CHINA |
9763
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BEST-REAGENT
| 028-85973071 028-85973075 | 028-85973075 | service@best-reagent.com | CHINA |
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Sinopharm Chemical Reagent Co,Ltd.
| 86-21-63210123 | 86-21-63290778 86-21-63218885 | sj_scrc@sinopharm.com | CHINA |
10006
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Spectrum Chemical Manufacturing Corp.
| 021-67601398-808 | 021-57711696 | gduan@spectrumchina.net | CHINA |
9357
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