
Packaging & Delivery
♦ Specification
| Na2Si6 | Item | Specification |
| Na2SiF6 | ≥99% | |
| Fe | ≤0.02% | |
| Loss of Weight on drying at 105°C | ≤0.40% | |
| Insoluble in Water | ≤0.50% | |
| Free Acid(HCL) | ≤0.15% | |
| Heavy Metal(Pb) | ≤0.05% |
♦ Description
Sodium fluorosilicate is the byproduct in the production of calcium phosphate or
the production of fluoride salt in aluminum factory.
It generally appears as a white crystalline powder with low solubility in water
(being 1% or less at room temperature), and the water solubility increases slightly
with increasing temperature.
The aqueous solution of sodium fluorosilicate is acidic (pH3). This is due to that
its hydrolysis product contains hydrofluoric acid.
When pH is lower than 3.5-3.55, the hydrolysis reaction is stabilized. When
the pH is equal to 4, the hydrolysis reaction rate is significant. When the pH value is
equal to 8-8.5, the sodium fluorosilicate can be completely hydrolyzed to exhibit as
silica gel and precipitated out.
Therefore, when sodium fluorosilicate is added to the water glass, in addition
to hardening effect of precipitation of silicon dioxide gel caused by the neutralization
of the sodium hydroxide in the solution of water glass, the sodium fluorosilicate
itself is also a source of silica gel.
♦ Eference quality standards
105 ℃ Loss of weight upon drying% 0.17%
Sodium fluorosilicate (based on dry mass) 99.50
Free acid (calculated based on HCL) 0.0075
Water insoluble matter 0.12%
Heavy metals (Pb) content% <0.02
♦ Application
1. Industry , additives in cement in building .
2. Agriculture , insecticide .
♦ Packing
50kg /plastic bag ,or customized. 25MT/20'FCL
♦ MOQ
1-20 ton
♦ Storage characteristics
Treasury ,ventilation, low-temperature and drying; store it separately from food and
acid.
Company Information
Shanghai Yixin Chemical Co.,Ltd.
Since it is established in 1998 ,Shanghai Yixin Chemical Co.,Ltd. has become a reliable supplier in the field of chemical industry .
Currently ,overseas business of our company is composed of two parts basic inorganic raw chemicals and fine chemicals .
♥ HOT PRODUCTS ♥
click the photo
Borax Decahydrate Boric Acid
Potassium Carbonate Barium Carbonate
Copper Sulphate Ammonium Sulphate

Potassium Fluotitanate Potassium Bicarbonate
Sodium Fluorosilicate Strontium Carbonate
We also sell inorganic chemicals like as following
Sodium Nitrate,Sodium Carbonate,Lithium Carbonate ,
Sodium Hydroxide,Cerium Oxide ,Cobalt Oxide ,
Potassium Borofluoride ,Sodium fluoroaluminate
ZnO Oxide, Potassium fluorosilicate,Aluminium Oxide
We aim to build a worldwide business ,to provide reliable quality chemicals at competitive price for your needs .we will listen to what do you want and endeavor to achieve it .
Looking forwarding to providing you high quantity products and warmly service .
Why choose us




|
Business TypeCountry / Region
Company Features 1. Shanghai Yixin Chemical Co., Ltd. specializes in the development, manufacture, and supply of and other similar products at both home and abroad. 2. The production technology of Shanghai Yixin Chemical Co., Ltd. is in a leading position in China. 3. Driven by glyoxal , we strive to build a leading company in the industry. Get price! Shanghai Yixin Chemical Co., Ltd. contributes to the society with the collective strength of the company. Get price! Yixin is strictly scrutinized and tested. It is required to test in terms of its cutting, stamping, extrusion, anodizing, and polishing quality and overall mechanical properties. With a solder mask, it enjoys a good electrical insulation property
Yixin goes through meticulous designing. Factors such as the accuracy, surface finish and other related parameters for the machine elements are specified with great deliberation. It stands out for its impact endurance performance
The development of Yixin has many design considerations. They are static and dynamic stiffness, operating speed, gearbox, manual and automatic control. The product has the performance of great stability
Yixin will be strictly inspected and tested for quality. Its mechanical parts, including motor, transmission shaft, connecting rod, gear, and other parts will be tested under specific testing equipment. Its solder mask can be offered with green, blue, white, black, yellow, and red colors
The design principles of Yixin mainly include the following aspects: the structure and the combined behavior and operating motion of its parts under load. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination
The product is safe in use. It will go in pause mode if there is any inconsistent operation, offering protection for operators. Thanks to the up-to-date vacuum DES line, it is manufactured with fine traces and high density
Copyright © 2021 Guangzhou Weyes Network Technology Co., Ltd. | All Rights Reserved Chat Online
Chat Online
Chat Online
inputting...
Sign in with:
|
|---|