Zinc silicofluoride as quick hardener of concrete

Zinc Fluorosilicate basic information:

Name:Zinc silicofluoride

Purity:98%

Formula:ZnSiF6

M.W:315.54

HAZARD CLASS: 6.1

CAS NO.:18433-42-6

HS CODE:2826901000

Zinc Fluorosilicate Physical and Chemical Properties:

1.Appearance: It is colorless hexagon rhombus crystals or white crystal powder.

2.Relative density:2.104

3. easily soluble in water, soluble in inorganic acid, insoluble in alcohol

4.is decomposes by heating to 100 degrees celsius and produces silicon tetrafluoride (SiF4), water (H2O) and zinc fluoride (ZnF2).

5. The pH of 1% aqueous solution is 3.2. It was toxic.

Zinc Fluorosilicate Technical standards:

Test index                                           Test result

ZnSiF6·6H2O                                 ≥98%

H2O                                          ≤0.6%

Water undissolvable substance                ≤0.6%

Zinc sulphate                                ≤0.5%

Fe                                           ≤0.2%

Zinc Fluorosilicate main usage:

 It is used as quick hardener of concrete, preservative of timber, intensifier of plaster, treater after washing, mothproofing agent and catalyst for polyester fibre etc. It is used also in electrolysis bath for zinc.

Zinc Fluorosilicate Packing:

In a plastic Bag inner layer and a woven bag as external layer, 25kg per bag, or according to the buyer's requirement. Suitable for long distance transportation.

Zinc Fluorosilicate storage:

Preserved from damp air. Move carefully during loading and unloading, avoiding breakage