| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
|
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|
Product Name
|
Sodium-Hydrosulphite/Sodium-Hydrosulfite
|
Purity
|
85% 88% 90%
|
|
CAS NO.
|
7775-14 6
|
Appearance
|
White Crystal Powder
|
|
MF
|
Na2S2O4
|
HS Code
|
2831101000
|
|
EINECS NO.
|
231-890-0
|
UN NO.
|
1384
|
|
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%
|
||
|
ITEM
|
STANDARD
|
TESTING RESULT
|
|
Purity(wt%)
|
85min
|
85.84
|
|
Na2CO3(wt%)
|
3-4
|
3.41
|
|
Na2S2O3(wt%)
|
1-2
|
1.39
|
|
Na2S2O5(wt%)
|
5.5 -7.5
|
6.93
|
|
Na2SO3(wt%)
|
1-2
|
1.47
|
|
Fe(ppm)
|
20max
|
18
|
|
Water lnsoluble
|
0.1
|
0.05
|
|
HCOONa
|
0.05max
|
0.04
|
|
Appearance
|
White crystalline powder
|
|
|
Odor
|
No or light sulfurous acid
|
|
|
SODIUM HY,DROSULFITE 88%
|
|||||
|
Na2S2O4%
|
Water insolubles%
|
Heavy MetalContent(ppm)
|
Na2CO3%
|
Fe(ppm)
|
Zn(ppm)
|
|
88 MIN
|
0.05MAX
|
1MAX
|
1-5.0
|
20MAX
|
1MAX
|
|
88.59
|
0.043
|
0.34
|
3.68
|
18
|
0.9
|
|
APPRIENCE:WHITE CRYSTALLINE POWDER
|
|||||
|
ODOR: ORDORLESS OF S,ULFUR 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 c-hloroform, 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.
Packing and shipping:
Packing Details:
Packaging: Packages: 25kg/bag,It can also be packaged according to customer needs, and can be affixed with your LOGO and other information.
Shipment:we have established solid cooperation with DHL,TNT,Fedex,UPS,EMS and air freight as well as sea shipping companies for many years,and it is possiable that we use your own shipping agent too.
| Free Sample. | We offer free sample for quality inspection and testing. |
| Superior Quality. | Our product quality is very excellent, can accept any third party inspection. |
| Competitive Price. | We offer more competitive price to support clients' development. |
| Professional Team. | We have 20 years experience in this field, provide technical advice for client. |
| Customization Services. | We offer products customization and packaging customization. |
CHONG QING(CQ) HAI CHEMICAL CO.,LTD i is a professional chemical company in China. Specializing deal and export
various kinds of quality chemicals since 2010. The products Include industry chemical, Animal feed additive, Food
additive, Agrochemical, Fertilizer, pharmaceuticals, water treatment and Detergent ,Minerals etc. Our management
team has over 14 years of combined expertise meeting the needs of clients. We are proud our quality chemcials and
service was approbated by the clients in the worldwide.
CHONG QING(CQ) HAI CHEMICAL CO.,LTD is an ISO9001:2008 certificated organization. We alway pay attention to the
quality control. For us, quality means satisfied clients. Only by constantly improving our internal and external
procedures are we able to remain a reliable supplier of chemicals for our clients worldwide. Every step of the
distribution chain is constantly checked and rechecked to guarantee the quality. Through continuous improvement in
quality and service, we will provide our customers with products of optimum quality consistent with their
requirements.
Besides the quality, we think the competitive price of goods is also important. Our comprehensive distribution
network, buying power and efficient inventory management system allow us to offer our products at the best possible
prices. Our principle is: Quality Chemicals With Competitive Prices - We Supply!
Up to now many of our chemicals have been done REACH final registration. It is convenient for the clients to use
our chemicals in Europe market.
Your satisfaction is our most interested thing. Also your any suggestion will be highly welcome by us. Now enjoy
your visiting and hope to hearing from you!
Q1.What is the Trade Term?
A1:Ex-work factory , FOB Qingdao, FOB Shanghai,FOB Fujian, CIF
Q2. How long is the guarantee (period)?
A2:One years quality warranty .
Q3: Can I get samples?
A3: Yes, we can supply free sample, you pay for the freight charge only.
Q4: How to pay?
A4: PI will be sent firstly after our aligned products specification. Payment by Paypal , T/T, Western Union,LC,
are ok.
Q5: How is your MOQ?
A5: Normally speaking, our MOQ is 1kg. But we can also accept less quantity such as 100g on the condition that
sample charge is100% paid.
Q6: 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.
Q7.How long is our Production leading time?
A7:within 15-20 days upon receive deposit in normal season, and 25-30days in our busy time
(August,September,October).
Q8.What kind of documents we will provide to you?
A8:B/L,Commercial Invoice, Packing List,Certificate of Original. with these documents you or your borker can do the
customs declaration at your side.
Q9. During shipping, if there is a damage to products, how do you get replacement?
A9: During shipping,our shipping angancy will try to ensure the safety of the goods.If there is a damage to
products, they would be responsible for the damage .If it is not a very serious problems,we will help you and
compensate you the damaged parts.
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