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POTASSIUM HYDROXIDE |
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PRODUCT IDENTIFICATION |
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| CAS NO. | 1310-58-3 |
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| EINECS NO. | 215-181-3 | |
| FORMULA | KOH | |
| MOL WT. | 56.1 | |
| H.S. CODE | 2815.20 | |
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TOXICITY |
Oral rat LD50: 273 mg/kg | |
| SYNONYMS | Potassium hydrate; Caustic potash; Lye; potassa; | |
| Hydroxyde De Potassium (French); Potasse Caustique (French); Kaliumhydroxid (German); Kaliumhydroxyde (Dutch); Potassa; Potassio Idrossido Di (Italian); | ||
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RAW MATERIALS |
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CLASSIFICATION |
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GENERAL DESCRIPTION |
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| Potassium Hydroxide, commonly called caustic potash with formula KOH, is a caustic compound of strong alkaline chemical dissolving readily in water, giving off much heat and forming a caustic solution. It is a white deliquescent solid in the form of pellets obtained by concentration of purified electrolytic potassium hydroxide solution with very low chloride content. It reacts violently with acid and is corrosive in moist air toward metals such as zinc, aluminium, tin and lead forming a combustible, explosive gas. It absorbs rapidly carbon dioxide and water from air. Contact with moisture or water will generate heat. Sodium hydroxide (Caustic soda) and potassium hydroxide (Caustic potash) are the two most important caustics. They are closely resembles in chemical properties and applications, e.g., in manufacturing liquid soap, in bleaching, and in manufacturing chemicals. Potassium hydroxide is the largest-volume potassium chemical for non-fertilizer use. Potassium Hydroxide is used in chemical manufacturing including potassium carbonate and other potassium chemicals, fertilizers, phosphates, agrochemicals, alkaline batteries and dyes. | ||
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE | odorless white, deliquescent solid | |
| MELTING POINT | 360 C | |
| BOLING POINT | 1320 C | |
| SPECIFIC GRAVITY | 2.044 | |
| SOLUBILITY IN WATER |
Soluble |
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| pH | 13.5 (0.1 molar solution) | |
| VAPOR DENSITY | ||
| AUTOIGNITION |
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| NFPA RATINGS | Health: 3; Flammability: 0; Reactivity: 1 | |
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REFRACTIVE INDEX |
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| FLASH POINT | Not combustible, but contact with water may generate heat | |
| STABILITY | Stable under ordinary conditions | |
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APPLICATIONS |
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| Potassium Hydroxide is used in chemical manufacturing including potassium carbonate and other potassium chemicals, fertilizers, phosphates, agrochemicals, alkaline batteries and dyes. It is also widely used in soap and bleaching industry. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
white flakes | |
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ASSAY |
90.0% min | |
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CARBONATE |
0.5% max |
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CHLORIDES |
0.01% max |
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SULPHATES |
10ppm max |
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IRON |
3max |
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HEAVY METAL |
10ppm max |
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NICKEL |
5ppm max |
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| TRANSPORTATION | ||
| PACKING | 25kgs, 50kgs in bag | |
| HAZARD CLASS | 8 (Packing group: II) | |
| UN NO. | 1813 | |
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