jinhe 90% sodium hydrosulfite manufacturer msds sodium hydrosulfite
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- Supplier: Tianjin Chengyuan Chemical Co. Ltd.
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Product Overview
Description
jinhe 90% sodium hydrosulfite manufacturer msds sodium hydrosulfite
Product Description
Sodium hydrosulfite with the formula Na2S2O4 is also known as sodium dithionite, and is white sand-shaped crystal or yellowish powder. It is soluble in sodium hydroxide solution and slightly soluble in ethanol.Powdered anhydrous sodium hydrosulfite with a small amount of water may ignite in air by the heat of decomposition.
Product name | sodium hydrosulfite |
CAS NO. | 7775-14-6 |
EINECS NO. | 231-890-0 |
HS CODE | 2831101000 |
UN NO. | 1384 |
Molecular weight | 174.108 |
INDEX | 90% | 88% | 85% |
Na2S2O4 | >=90% | >=88% | >=85% |
Fe | <=20ppm | <=20ppm | <=20ppm |
Zinc(Zn) | <=1ppm | <=1ppm | <=1ppm |
Other heavy metal(calculated as Pb) | <=1ppm | <=1ppm | <=1ppm |
Water Insolubles | <=0.05% | <=0.05% | <=0.05% |
Shelf Life(month) | 12 | 12 | 12 |
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FAQ
Q: How long is your delivery time?
A: Generally it is 7-10 days, if we have stock. If not, maybe need 10-15 days to arrange the shipping.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: We can do TT payment, 100%LC at sight and DP.
Q: why we choose you ?
A : (1)We can provide Consistent, high-quality products ,
(2)we have strong technical support
(3) we have competitive and reliable price of the products
(4)We can provide excellent and fast customer service
If you have any other questions , please feel free to contact with us
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