Customization: | Available |
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CAS No.: | 7772-98-7 |
Formula: | Na2s2o3 |
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Item
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Photographic grade
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Industrial grade
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Anhydrous grade
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Appearance
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colorless transparent crystal
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colorless transparent crystal
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white powder
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Assay
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≥99.00%
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≥98.5%
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≥97.0%
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Water Insoluble matter
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≤0.01%
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≤0.03%
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≤0.03%
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Sulfide
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≤0.001%
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≤0.003%
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≤0.001%
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Fe
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≤0.001%
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≤0.003%
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≤0.005%
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PH
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6.5~9.5
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6.5~9.5
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6.5~9.5
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Water solution reaction
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in accordance with the test
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in accordance with the test
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Granularity(g/g)
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12~16
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Residual AM (PPM)
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<500<>
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<500<>
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<500<>
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PH Value
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5-14
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5-14
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5-14
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Packing:
1. 25KG compound plastic woven bag with inner polythene liner;
2. 1000kg Jumbo bags;
3. Any other particular requirements to the package can be discussed.
Storage and handing:
Store the product in a cool and dry place, prevent from direct sunlight, water and moisture, avoid contact with strong add oxidants,Do not stores it for long time.
Q1: Can I get samples?
A: Yes, we can supply free sample, you pay for the freight charge only.
Q2: How to pay?
A: PI will be sent firstly after our aligned products specification. Payment by Paypal , T/T, Western Union,LC, are ok.
Q3: How is your MOQ?
A: Normally speaking, our MOQ is 1 container. But we can also accept less quantity on the condition that sample charge is100% paid.
Q4: How can you guarantee the quality of your products ?
1. Our staff are all experienced in chemical products or related major background, they are well trained before quotation.
2. Free sample or pre-shipment sample are available for our new cooperation before you place commercial order. We are sure the same specification commercial products as sample to customers
3. Third Party Inspection like SGS can be arranged according to your requirement before shipping.
4. On-Spot QC in our APPROVED associated production bases with necessary certification like GMP, ISO etc.
Q5: Do you have any other chemicals?
A: Yes, We can provide kinds of additives and flocculating agent, such as PAC,PAM,Aluminum Sulfate and Citric acid,Soda Ash,Soda Flake, etc .....