12125-09-6 Usage
Description
PHOSPHONIUM IODIDE is a large, transparent, colorless crystal that is a tetragonal structure. It is known for its ability to sublime at room temperature and decompose into phosphine (PH3) and hydroiodic acid (HI) when heated or in the presence of alcohol or water. Rapid heating can cause detonation, making it a potentially reactive compound. It is also a colorless tetragonal crystal that deliquesces, has a density of 2.86 g/cm3, and a vapor pressure of 50 torr at 20°C and 760 torr at 61.8°C. It melts at 18.5°C under its own vapor pressure and boils at 80°C. It is soluble in acids and alkalies, but decomposes in these solutions as well as in water.
Uses
Used in Laboratory Preparation:
PHOSPHONIUM IODIDE is used as a reagent in the laboratory preparation of phosphine, which is an important compound in various chemical processes and applications.
Used in Chemical Research:
Due to its unique properties, such as sublimation at room temperature and decomposition in the presence of alcohol or water, PHOSPHONIUM IODIDE can be used as a research material in chemical studies, particularly in understanding the behavior of reactive compounds and their potential applications in various industries.
Used in Pharmaceutical Industry:
PHOSPHONIUM IODIDE, with its ability to decompose in water and its reactivity with acids and alkalies, can be utilized in the development of pharmaceutical compounds, where specific reactivity and decomposition properties are required for drug synthesis and formulation.
Used in Material Science:
The unique physical and chemical properties of PHOSPHONIUM IODIDE, such as its sublimation at room temperature and its reactivity, make it a potential candidate for material science applications, where novel materials with specific properties are constantly being sought after.
Used in Analytical Chemistry:
The decomposition of PHOSPHONIUM IODIDE in the presence of alcohol or water and its solubility in acids and alkalies can be exploited in analytical chemistry for the development of new analytical methods or the improvement of existing ones, particularly in the detection and quantification of specific compounds.
Preparation
Phosphonium iodide may be prepared by the action of phosphine with dry hydrogen iodide: PH3 + HI → PH4I Solid phosphonium iodide may be produced in the laboratory by slowly and very cautiously adding water to an intimate mixture of white phosphorus and iodine. Also, this phosphorus-iodine mixture may be obtained by mixing solutions in carbon disulfide and carefully evaporating the solvent in a stream of inert gas: P4 + I + H2O → PH4I + H3PO4 2P + I2 + 4H2O → PH4I + H3PO4 + HI Also, the compound can be prepared by hydrolysis of a mixture of diphosphorus tetraiodide and white phosphorus: P2I4 + P + H2O → PH4I + H3PO4.
Hazard
Phosphonium iodide detonates on rapid heating. It dissociates by water, alcohol or heat, evolving toxic phosphine gas.
Check Digit Verification of cas no
The CAS Registry Mumber 12125-09-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,1,2 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 12125-09:
(7*1)+(6*2)+(5*1)+(4*2)+(3*5)+(2*0)+(1*9)=56
56 % 10 = 6
So 12125-09-6 is a valid CAS Registry Number.
InChI:InChI=1/HI.H3P/h1H;1H3
