16925-39-6 Usage
Description
Calcium hexafluorosilicate is a colorless, tetragonal powder that is obtained by the reaction of a calcium salt and hexafluorosilicic acid (H2SiF6). It is a chemical compound with the formula CaSiF6 and possesses unique properties that make it useful in various applications.
Uses
Used in Wood Industry:
Calcium hexafluorosilicate is used as a flotation agent in the wood industry for the separation of wood fibers from other impurities. Its ability to selectively bind to wood fibers allows for efficient and effective separation processes.
Used in Rubber Industry:
In the rubber industry, calcium hexafluorosilicate is used as a processing aid to improve the quality and performance of rubber products. It enhances the rubber's properties, such as tensile strength and elasticity, by interacting with the rubber molecules.
Used in Textile Industry:
Calcium hexafluorosilicate is employed in the textile industry as a dyeing and finishing agent. It helps in the even distribution of dyes on fabrics and improves the overall appearance and quality of the finished textile products.
Used as a Flotation Agent:
Calcium hexafluorosilicate is used as a flotation agent in various industrial processes, including mineral processing and wastewater treatment. Its selective binding properties enable the separation of desired materials from unwanted impurities, improving the efficiency of these processes.
Used as an Insecticide:
Calcium hexafluorosilicate is used as an insecticide in agriculture and pest control. It effectively targets and eliminates pests, protecting crops and reducing the need for chemical pesticides.
Preparation
CaCO3 +H2SiF6 →CaSiF6 +H2O + CO2Calcium hexafluorosilicate can be prepared by reacting a large excess of CaCO3 or Ca(NO3)2 with a high concentration of H 2SiF6.
Safety Profile
Poison by ingestion and
subcutaneous routes. See also CALCIUM
COMPOUNDS. When heated to
decomposition it emits toxic fumes of F-.
Check Digit Verification of cas no
The CAS Registry Mumber 16925-39-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,2 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16925-39:
(7*1)+(6*6)+(5*9)+(4*2)+(3*5)+(2*3)+(1*9)=126
126 % 10 = 6
So 16925-39-6 is a valid CAS Registry Number.
InChI:InChI=1/Ca.F6Si/c;1-7(2,3,4,5)6/q+2;-2
16925-39-6Relevant articles and documents
A low-temperature synthesis route for CaAlSiN3 doped with Eu2+
Kubus, Mariusz,Meyer, H.-Juergen
, p. 669 - 671 (2013)
A new low-temperature synthesis route of the strongly red-emitting Eu 2+ activated nitride phosphor CaAlSiN3 is presented. The fluorides CaSiF6 and AlF3 were used as a source of metal ions and Li3N as a nitrogen source. A KCN/LiCl flux system was employed to lower the temperature of the reaction from 1100 to 750 °C. The course of the reaction was studied by differential thermal analysis, and the product of the reaction was inspected by X-ray powder diffraction and luminescence measurements of CaAlSiN3:Eu. Copyright
