ГЕКСАФТОРСИЛИКАТ СЕРЕБРА

Description

Silver hexafluorosilicate (Ag₂SiF₆) is a silver salt of hexafluorosilicic acid H₂SiF₆. Refers to inorganic silver salts with a weakly coordinating fluorine-containing anion. The product is low-tonnage, supplied as a high-purity reagent; The manufacturer's card contains a limited set of attributes; physical constants are not given in it.

Basic Attributes

• CAS No: 12021-64-6
• Chemical formula: Ag₂F₆Si (Ag₂SiF₆)
• Molecular Weight: 357.81
• Exact weight: 355.77800
• DSSTox ID: DTXSID90721338
• XLogP3: 2.14040

Chemical nature

The SiF₆²⁻ anion is an octahedral silicon complex with six fluorine atoms, weak as a base and weakly coordinated to metal cations. Silver salts of this type (along with silver hexafluorophosphate and silver tetrafluoroborate) are described in the literature as products of a general synthetic scheme and are considered together as an “Ag⁺ source with a low-coordinating counterion.”

Scope of application

• reagent for laboratory and research purposes: a source of silver cation paired with a weakly coordinating hexafluorosilicate anion
• starting material for the preparation of silver-containing fluoride phases and coordination compounds
• object of work on the synthesis and reactivity of silver salts of fluorocomplex anions

Storage and handling

There is no data on GHS classification, transport codes and exposure limit levels in the original card. Handling is carried out as with fluorine-containing silver salt: the container is tightly closed, the room is dry, the product is protected from light and moisture, work with gloves and goggles, without dust when hanging. Hydrolysis of fluorosilicates produces hydrogen fluoride, so contact with water and acids is avoided.