17125-80-3

Basic information

• Product Name: Barium hexafluorosilicate
• Synonyms: BARIUM SILICOFLUORIDE;Barium hexafiuosilicate;BARIUM HEXAFLUOROSILICATE;Barium fiuosilicate;BARIUM FLUOSILICATE;Bariumfluorosilicate;bariumhexafluorosilicate(2-);bariumsilicofluorid
• CAS NO: 17125-80-3
• Molecular Formula: Ba*F₆Si
• Molecular Weight: 279.4
• EINECS: 241-189-1
• Mol File: 17125-80-3.mol

Chemical Properties

• Melting Point: decomposes at 300℃ [MER06]
• Appearance: /white orthorhombic needles
• Density: d421 4.29
• Storage Temp.: Refrigerator, under inert atmosphere
• Solubility: Aqueous Acid (Slightly, Heated, Sonicated)
• Water Solubility: 0.015g/100mL H2O (0°C), 0.0235 (25°C), 0.091 (100°C) [MER06]
• CAS DataBase Reference: Barium hexafluorosilicate(CAS DataBase Reference)
• NIST Chemistry Reference: Barium hexafluorosilicate(17125-80-3)
• EPA Substance Registry System: Barium hexafluorosilicate(17125-80-3)

Safety Data

• Hazard Codes: Xn,Xi
• Statements: 20/22
• Safety Statements: 28
• RIDADR: UN 1564 6.1/PG 3
• WGK Germany: 1
• RTECS: CR0525000
• HazardClass: 6.1(b)
• PackingGroup: III
• Hazardous Substances Data: 17125-80-3(Hazardous Substances Data)

Usage

Uses

1. Chemical Industry:
Barium hexafluorosilicate is used as a precursor for the production of ammonium bifluoride (NH4HF2). This is an important compound used in various chemical reactions and processes.
2. Electronics Industry:
In the electronics industry, barium hexafluorosilicate is used for the preparation of silicon tetrafluoride (SiF4), a gas that is utilized in the manufacturing of semiconductors and other electronic components.
3. Agriculture Industry:
Barium hexafluorosilicate is used as a pesticide, taking advantage of its chemical properties to control and prevent pests in the agricultural sector. Its application helps in protecting crops and increasing agricultural productivity.

Safety Profile

A poison by ingestion. When heated to decomposition it emits toxic fumes of F-. See also BARIUM COMPOUNDS (soluble).

InChI:InChI=1/Ba.2FO2Si/c;2*1-4(2)3/q+2;2*-1

Upstream product

• 16961-83-4 fluorosilicic acid 
• 7446-09-5 sulfur dioxide 
• 22541-12-4 barium(II) 
• 7664-39-3 hydrogen fluoride 
• 112926-00-8 silica gel 
• 543-80-6 barium(II) acetate 
• 10361-37-2 barium(II) chloride dihydrate 
• 7783-61-1 silicon tetrafluoride 
• 21109-95-5 barium sulfide 
• 1304-29-6 barium peroxide 

Downstream Products

• 112926-00-8 silica gel 
• 16961-83-4 fluorosilicic acid 
• 7783-61-1 silicon tetrafluoride 

Relevant articles and documents

Hydrothermal synthesis of BaSiF6 hexagonal needles

Hexagonal needles of BaSiF6 microcrystals have been prepared by using a hydrothermal method with Ba(N03)2, SiO 2, and HF in the presence of NH4Cl or ethylenediamine dihydrochloride as the metal chelating agent. The metal chelating agent plays an important role in controlling the aspect ratios of the BaSiF6 microcrystals. X-ray diffraction was used to confirm that the axes of the hexagonal needles of BaSiF6 are aligned along the c axis.

A conversion route towards tubular SiO2 using rod-like BaSiF6 as a novel template

A simple hydrothermal reaction between Ba(NO3)2 and K2SiF6 results in the formation of 1D rod-like BaSiF6. The BaSiF6 rods can act as efficient precursors for production of tubular SiO

Chemical properties of (NH4)2SiF6

Solid-phase interactions of (NH4)2SiF6 with silicon oxide are investigated; calcium oxide; potassium carbonate; and zirconium, aluminum, and barium fluorides. The phase composition is investigated, and the chemical composition is determined for the interaction products, including sublimates. The IR spectra and DTA curves are measured. It has been shown that ammonium hexafluorosilicate is an active fluorinating agent at temperatures above the thermal stability temperature of ammonium hydrodifluoride, which may be of interest for chemical technology. Copyright