White Powder 7775-14-6 Na2s2o4 Sodium Dithionite Hydrate Sodium Hydrosulphite Sodium Hydrosulfite 85% 88% 90%

Product Description

Product DescriptionChina Factory for Sodium Hydrosulfite 88% Na2s2o4 CAS 7775-14-6
1. Detail description:

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	I	II	III
Sodium Hydrosulphite	90% min	88% min	85% min
Water insoluble	0.2% max	0.2% max	0.2% max
Sodium carbonate:Na,CO3	1-5%	1-5%	1-5%
Zn	0.0001% max	0.0001% max	0.0001% max
Fe	0.002% max	0.002% max	0.002% max

2. Certificate of analysis

Lot No.	See the following	Quantity		112.50MT
Production date	2021-12-28	packing		50kg per iron drum
Shelf life (Months)	12 Months after the production date
Standard No.	HG/T 2074-2011
items	Standard		Test result
	88 PCT		Lot No. 21122828
Appearance	White crystalline powder		White crystalline powder
odor	Odorless or with a slight odor of sulfur dioxide		Odorless or with a slight odor of sulfur dioxide
Na2S2O4 (%)	88 min		88.4
Na2S2O5 (%)	5-7		6.1
Na2CO3 (%)	0.9-5.0		3.2
Water Insolubles (%)	0.05 max		0.04

3. Packing details: We offer 50kg drums package for export mainly, and we can also offer different packages as per clients' requests, such as 25kg drums, 100kg drums and 200kg drums.
Welcome to contact me for more details.
Company ProfileOur servicesQuality ControlQingdao Hisea Chem is a company that focus on delivery reliable and high-quality products. Our analytical laboratory equipped with advanced apparatus as well as a professional chemist team that ensure our product meet your criteria. After you confirmed your order, we make sure your goods will be delivered with the corresponding certificate of analysis (CoA). For more details of our product CoA, Check Products or talk to one of our sale representative.
Quotation & Payment
Qingdao Hisea Chem offer competitive price to our customer. We offer Free on Board (FOB), Cost, Insurance, and Freight (CIF) price to your designated port. Payment options is flexible with Hisea chem, our company have gained great confidence with difference banks all around the world. Email us if you have questions about our quotation and payment policy.
Shipment & After sale service
After over 20 years on global trade, Qingdao Hisea Chem has formed a mature international trade logistics chain. For most of our products, we offer "door to door service", our professional team gives you this "one-stop" service to save your time and increase your purchase experience.
FAQ FAQ
Q: What's your advantage? Why choose you?
A: More than 10 years experienced of production chemical production. We have the most professional techniques and team. Great production capacity Sustainable Supply. According to customer requirements, we support the customized.
Q: What's the payment?
A: T/T would be better with quick transfer and few bank. LC could also be accept, but the proceure is complex and the fee is high. You can also use Western Union. For large quantity, sea shipping can be provided.
Q: Are you a factory or trading company?
A: We are a professional manufacturer. We are warmly welcome clients from worldwide to visit our factory and cooperate with us.
Q: How can i get some samples?
A: We are honored to offer you samples. New clients are expected to pay for the courier cost,the samples are free for you.
Q: When can i get the price?
A: We usually quote within 24 hours after we get your inquiry. If you are urgent to get the price, Please tell us in your email so that we will regard your inquiry priority.
Q: Where is your factory located?
A: Our factory is located in Qingdao,China.
Q: What is your sample policy?
A: Some of our samples are available for free,while others are available at a cost.

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