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Potassium hydroxide

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Potassium hydroxide

EINECS 215-181-3
CAS No. 1310-58-3 Density 2.044 g/cm3
Solubility 121 g/100 mL (25 °C) in water Melting Point 360 °C
Formula KOH Boiling Point 100 °C at 760 mmHg
Molecular Weight 56.10 Flash Point 52 °F
Transport Information UN 2924 3/PG 2 Appearance white solid
Safety 7-16-36/37-45-36/37/39-26 Risk Codes 34-35-22-11-39/23/24/25-23/24/25-36/38-36/37-67
Molecular Structure Molecular Structure of 1310-58-3 (Potassium hydroxide) Hazard Symbols ToxicT,FlammableF,IrritantXi,CorrosiveC
Synonyms

lpotassum hydroxide;kizutasaponin K10;Potassium h;potassium hydroxyde;Cauloside D;potassium hyroxide;Caustic potash;Potassium hydroxide;potassium hydroxid;caustic potash;

 

Potassium hydroxide Specification

Potassium hydroxide, with the CAS registry number 1310-58-3, is also named as Caustic potash. The product's categories are Inorganics; Acids&Bases; Essential Chemicals; Reagent Grade; Analytical Reagents; Drying Agents; Special Applications; Base Solutions; Base Solutions Volumetric Solutions; By Reference Material; Reference Material Hydrochloric acid; Titration; Volumetric Solutions; HPLC Buffers - SolutionChromatography/CE Reagents; HPLC Buffers; Solution; Chromatography/CE Reagents; Eluent concentrates for ICAlphabetic; Ion Chromatography; etc., and the other registry numbers are 29857-72-5; 71769-53-4. Besides, it is white solid, which should be stored in tightly closed containers in ventilated, dry warehouse at 0-6 °C. It is stable, but incompatible with most metals, strong acids, acid chlorides, organic materials, zinc, aluminium, nitroalkanes, nitrobenzene, chlorine dioxide. In addition, its molecular formula is KOH and molecular weight is 56.10.

Physical properties about Potassium hydroxide are: (1)ACD/LogP: -1.38; (2)ACD/LogD (pH 5.5): -1.38; (3)ACD/LogD (pH 7.4): -1.38; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)#H bond acceptors: 1 ; (7)#H bond donors: 2; (8)Enthalpy of Vaporization: 40.65 kJ/mol; (9)Boiling Point: 100 °C at 760 mmHg; (10)Vapour Pressure: 24.5 mmHg at 25°C

Preparation of Potassium hydroxide: This chemical can be prepared by electrolysis of Potassium chloride solutions.
2 KCl + 2 H2O → 2 KOH + Cl2 + H2

Uses of Potassium hydroxide: This chemical is used to produce other potassium compounds. It is also used in the manufacture of biodiesel by esterification of the free fatty acids in vegetable oil. Furthermore, it can be used to prepare the corresponding "potassium soaps". And it can be used as the electrolyte in alkaline batteries based on nickel-cadmium and manganese dioxide-zinc. It can also be used to hasten the decomposition of soft tissues, both animal and human, to leave behind only the bones and other hard tissues. It is a useful ingredient used in agents and preparations that clean and disinfect surfaces and materials. Similarly, it is used in manicure treatments as active ingredient.

When you are using this chemical, please be cautious about it as the following: it is highly flammable that may cause severe burns. And its vapours may cause drowsiness and dizziness. Please keep container tightly closed away from sources of ignition. Moreover, it is toxic by inhalation, in contact with skin and if swallowed. It is also irritating to eyes and skin, and harmful if swallowed. It is danger of very serious irreversible effects. In case of contact with eyes, please rinse immediately with plenty of water and seek medical advice. And you should wear suitable protective clothing, gloves and eye/face protection. Additionally, in case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

People can use the following data to convert to the molecule structure.
(1)Canonical SMILES: [OH-].[K+]
(2)InChI: InChI=1S/K.H2O/h;1H2/q+1;/p-1
(3)InChIKey: KWYUFKZDYYNOTN-UHFFFAOYSA-M

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 273mg/kg (273mg/kg)   Fundamental and Applied Toxicology. Vol. 8, Pg. 97, 1987.

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