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Hexafluorophosphoric acid

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Origin: China

Cas No: 16940-81-1

Specification: 99%min

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Supply Ability: 50 mt/month

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CAS No.: 16940-81-1 Formula: F6HP Molecular Weight: 145.97200

Description

Hexafluorophosphoric acid is the inorganic compound with the chemical formula H3OPF6. Although the formula is often written as HPF6, this compound is only available as the hydrate. This strong Brønsted acid features a non-coordinating anion, hexafluorophosphate (PF− 6). It is formed from the reaction of hydrogen fluoride with phosphorus pentafluoride.
Like many strong acids, hexafluorophosphoric acid is not isolable but is handled only in solution. Its aqueous solutions consist of hydronium ion, H 3O+ , and PF− 6. Additionally, such solutions often contain products derived from hydrolysis of the P-F bonds, including HPO 2F 2, H 2PO 2F, and H 3PO 4, and their conjugate bases. Hexafluorophosphoric acid attacks glass. Upon heating, it decomposes to generate HF. Crystalline HPF 6 has been obtained as the hexahydrate, wherein PF− 6 is enclosed in truncated octahedral cages defined by the water and protons. NMR spectroscopy indicates that solutions derived from this hexahydrate contain significant amounts of HF.

Basic Info

Chemical Name	Hexafluorophosphoric acid
Synonyms	hydron,hexafluorophosphate;
CAS No.	16940-81-1
Molecular Formula	F6HP
Molecular Weight	145.97200
PSA	13.59000
LogP	3.49490

Properties

Appearance & Physical State	Colorless liquid.
Density	1.651
Melting Point	10ºC
Water Solubility	hydrolyzes slowly
Stability	Stable. Incompatible with strong oxidizing agents.
Storage Condition	Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.