Customization: | Available |
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CAS No.: | 7681-57-4 |
Formula: | Na2s2o5 |
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Product Name
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Sodium Hydrosulphite/Sodium Hydrosulfite
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Purity
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85% 88% 90%
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CAS NO.
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7775-14-6
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Appearance
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White Crystal Powder
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MF
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Na2S2O4
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HS Code
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2831101000
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EINECS NO.
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231-890-0
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UN NO.
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1384
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INDEX |
90% |
88% |
85% |
74% |
Na2S2O4 |
≥90% |
≥88% |
≥85% |
≥74% |
Fe |
≤20ppm |
≤20ppm |
≤20ppm |
≤30ppm |
Zinc(Zn) |
≤1ppm |
≤1ppm |
≤1ppm |
≤1ppm |
Other heavy metal (as Pb) |
≤1ppm |
≤1ppm |
≤1ppm |
≤1ppm |
Water Insolubles |
≤0.05% |
≤0.05% |
≤0.05% |
≤0.05% |
Shelf Life(month) |
12 |
12 |
12 |
12 |
SODIUM HYDROSULFITE 85%
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ITEM
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STANDARD
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TESTING RESULT
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Purity(wt%)
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85min
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85.84
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Na2CO3(wt%)
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3-4
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3.41
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Na2S2O3(wt%)
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1-2
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1.39
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Na2S2O5(wt%)
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5.5 -7.5
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6.93
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Na2SO3(wt%)
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1-2
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1.47
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Fe(ppm)
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20max
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18
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Water lnsoluble
|
0.1
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0.05
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HCOONa
|
0.05max
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0.04
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Appearance
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White crystalline powder
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|
Odor
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No or light sulfurous acid
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SODIUM HYDROSULFITE 88%
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|||||
Na2S2O4%
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Water insolubles%
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Heavy MetalContent(ppm)
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Na2CO3%
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Fe(ppm)
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Zn(ppm)
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88 MIN
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0.05MAX
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1MAX
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1-5.0
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20MAX
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1MAX
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88.59
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0.043
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0.34
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3.68
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18
|
0.9
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APPRIENCE:WHITE CRYSTALLINE POWDER
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ODOR: ORDORLESS OF SULFUR DIOXIDE
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1,In food industry, it is used as bleaching agents, preservatives, loosen agents, antioxidants, color protecting agents and preservatives.
2,The Doctor industry is used for the production of chloroform, phenylpropane and benzaldehyde.
3,The rubber industry is used as a coagulant.
4,The printing and dyeing industry is used as a dechlorination agent for cotton bleaching and a cotton cooking agent.
5,Tannery industry for leather treatment, can make leather soft, plump, tough, with waterproof, anti - folding, wear resistance and other properties.
According to the customer the long-term use of reflection.
a.In non-ferrous metallurgical refining significantly improve processing efficiency and cost. |
b.In dying industry, Improve the effectiveness of coloring, saving dyes, more environmentally friendly |
c.Used the product in leather processing hair removal more thoroughly |
d.Used in rubber and plastic industry, product recovery rate is higher, the advantages of nice colour. |
e.Used in leather toughness increased significantly |
f.Used in rubber and plastic industry, product recovery rate is higher, the advantages of nice colour |
Our manufacture has the most advanced design. It is full automatic converter and stainless steel vacuum evaporation high quality sodium sulfide production line, an annual quantity is 50000 tons of II of yellow flake.The quality is the best in southwest region of similar products. Our products are widely used in chemical industry, nonferrous metallurgy industry, dyestuff, papermaking, leather and rubber industry, such as light industry.
We will provide the high quality and stable quantity. We are manufacture instead of trader.
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