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Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular

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Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular

Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular
Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular

Large Image :  Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular

Product Details:
Place of Origin: CHINA
Brand Name: YIXIN
Certification: ISO9001
Model Number: YXF-005
Payment & Shipping Terms:
Minimum Order Quantity: 1-25ton
Price: usd550-650/ton
Packaging Details: 50kg/bag
Delivery Time: 3-15days after received deposit
Payment Terms: L/C, , T/T, Western Union
Supply Ability: 1000 ton per month

Opal Glass Insecticide Material Sodium Silicate Fluoride White Powder / Granular

Description
Molcular Formula: Na2SiF6 Other Name: Sodium Hexafluorosilicate
CAS NO: 16893-85-9 Color: White
Appearance: Powder Or Granular Molecular Weight: 188.06
High Light:

sodium fluorosilicate

,

sodium hexafluorosilicate

Uses of sodium silicate fluoride powder is make as insecticide and material of opal glass

 

►Description 

 

Properties

 

Chemical formula

 

Na2[SiF6]

 

Molar mass

 

 188 g/mol

 

Appearance

 

 white granular powder

 

Odor

 

 odorless

 

Density

 

 2.68 g/cm3
Solubility in water  0.64 g/100 mL (20 °C)
 1.27 g/100 mL (50 °C)
 2.45 g/100 mL (100 °C)

 

Solubility

 

 insoluble in alcohol

 

Refractive index (nD)

 

1.312

Structure

 

Crystal structure

 

 hexagonal

Hazards

Lethal dose or concentration (LD, LC):

LDLo (lowest  published)

70 mg/kg (mouse, oral)


125 mg/kg (rabbit, oral)

 

Sodium fluorosilicate appears as white crystal, crystalline powder or colorless

 

hexagonal crystals. It is odorless and tasteless. Its relative density is 2.68;

 

it has moisture absorption capability. It can be dissolved in a solvent such as ethyl

 

ether but insoluble in alcohol. The solubility in acid is greater than that in water.

 

It can be decomposed in alkaline solution, generating sodium fluoride and silica.

 

After searing (300 ℃), it is decomposed into sodium fluoride and silicon

 

tetrafluoride. It is poisonous!
 

  In 25 degrees, the sodium fluorosilicate has its water solubility being 0.78%.

 

Upon production, addition of an excess amount of sodium sulfate or sodium

 

chloride can increase the concentration of sodium ions in the system, thereby

 

increasing the solubility product of fluorine silicate and sodium ions, so that sodium

 

fluoride can be subject to more complete precipitation. 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. Reduction of the acidicity of the solution facilitates the hydrolysis

 

of sodium fluorosilicate. 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.

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%
 

 

►Toxicity

      This product is toxic with stimulation effect on the respiratory organ. People of

 

mistakenly oral poisoning will get severe symptoms of damage to the

 

gastrointestinal tract with the lethal dose being 0.4~4g. During the working of the

 

operator, they should wear the necessary protective equipment to prevent

 

poisoning. Production equipment should be sealed and the workshop should be

 

well ventilated.

Application 

 

Sodium fluorosilicate can be used as:

1. The insecticide in agriculture.

2. Opal glass 

►Storage characteristics

 

Treasury: ventilation, low-temperature and drying; store it separately from food and

 

acid.

►MOQ 

 

1-20TON 

Contact Details
Shanghai Yixin Chemical Co., Ltd.

Contact Person: anny

Tel: +8613391072385

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