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Sodium Metasilicate Pentahydrate Powder

Supplier From China
Jan-30-24

Appearance: white crystalline powder

Properties and functions:
1. SMP is strongly alkaline, having strong capacity of cleaning, buffering and softening, counteracting acidic contamination, emulsifying fat and oil, deflocculating to inorganic.
2. It can replace STPP to be used for the manufacture of effective detergents and rust remover for metal, reducing environmental pollution, preventing corrosion for metal (zinc, aluminum, etc.).

Physical and Chemical data:
Melting Point Boiling Point Density
72 �ºC 118 �ºC 2.61 g/m3
Other Related indexes:
EINECS RTECS PubChem MDL
229-912-9 VV9287500 24886295 MFCD00149176
Solubility: soluble in water, solubility is 50g in 100g water (20�ºC)

Main indexes:
Index Standard
Sodium oxide(Na2O) by wt % 28.7~30.00
SiO2 by wt % 27.8~29.2
Water insoluble by wt % 0.05 max
Fe by ppm 100 max
Whiteness % 80 min
Bulk density by g/cc 0.80~0.97
PH of 1.0% Solution 12~13
Particle size by wt % (40~100mesh) 90 min


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Sales Specification

Sodium Oxide (Na2O) %: 28.70 -30.00
Silica (SiO2) %: 27.80 -29.20
Water Insoluble %: 0.05
Fe(ppm): 100 ppm
Whiteness %: 80
Bulk Density: 0.80 0.97 g/cc
PH of 1.0 % Solution: 12- 13
Melting Point: 72.2 oC
Particular Size % (16-30 Mesh): 90
Packing

50 lb bag, 44 bags per pallet
DOT Transportation

UN No: 3253
Shipping name: Disodium Trioxosilicate
Hazard class: 8
Packing group: III
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Sodium Metasilicate Pentahydrate granules
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May-02-22
 
Checking Item Test Standard
Sodium oxide(Na2O)% 28.00-30.00
Silica(SiO2)% 27.00-29.00
Water insoluble% 0.2
Fe(ppm) 200ppm
Whiteness% 80
Bulk Density 0.80-0.97g/cc
PH of 1.0% Solution 12-13
Melting Point 72.2
ParticularSize % (16-30mesh) 90 98
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Product name :Sodium Tetraborate Pentahydrate
Molecular formula: Na2B4O7�·5H2O
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Appearance White crystalline
B2O3 47.76%-49.35%
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Na2O 21.25%-21.95%
SO4 135 ppm max
Cl 70 ppm max
Fe 5 ppm max
Insoluble matter in water 150 ppm max
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Checking Item Test Standard
Sodium oxide(Na2O)% 28.00-30.00
Silica(SiO2)% 27.00-29.00
Water insoluble% 0.2
Fe(ppm) 200ppm
Whiteness% 80
Bulk Density 0.80-0.97g/cc
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