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"United Mining and Chemical Company" | Product | MOLDING QUARTZ SAND


MOLDING QUARTZ SAND

Other names: Quartz sand  
CAS number: 7631-86-9 
Formula: SiO2
Technical Condition of Ukraine TU-U 14.2-00201081-056.2007
Harmonize Commodity Code 2505100000

Chemical analysis
Contents, % GUARANTEED TYPICAL
SiO2 min 98,0 98-99
Banding clay, max 0,5 0,1-0,3
Fe2O3 max 0,4 0,2
I NazO + K2O + CaO + MgO, max 0,4 < 0,1
LoI 0,5 0,3
Moisture, damp sand, max 6,0 4,0
Moisture, dry sand, max 0,5 0,2
pH, max. 6,2-9,0 6,2-8,0
Gas permeability, m2/ pa.s 100-350 170-230
UC, %, min 80,0 > 80,0
Grain size, mm 0,14-0,28 0,14-0,28

Physical description and properties:

Appearance: White dry free running sand.
Grain shape: spherical, good rolled.
Grain color: colorless, white.
Refractory: 1645 -1770 °РЎ
Specific Gravity: 2650 kg/m3
Bulk density: 1500 kg/m3
Grain size: 140-280 mkm
Specific surface, max: РґРѕ 10 m2/ kg 
Flashing point: Nonflammable
Solubility in Water: Insoluble
Angle of friction: 33°
Gas permeability: 100-350 m2 / Pa*s
Hardness: 7
 
Minerals Contents, %
Quartz: 97-99
Rutile: ^ 0,2
Zircon: ^ 0,1
Ilmenite: < 0,5
Kyanite: 0,5-1
Clay: 0,5

Storage:  at unequipped spaces.
Terms of storage unlimited.
Sieve Aperture (microns) Cumulative retained, %
+ 400 1
+ 315 7
+ 200 52
+ 160 90
+ 100 98
+ 63 99,8

End use: Molding sand is used in foundry production.

Shipment:
  • Bulk in railway cars or vessel holds;
  • Soft containers (big bag) 0,4 t net.

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