HEDP Quick Details
Chemical Name:HEDP
Synonyms: 1-Hydroxyethylidene-1,1-diphosphonic acid
CAS No.: 2809-21-4
Molecular Fomula:C2H8O7P2
Molecular weight: M=206.03
EINECS No.:220-552-8
HEDP Typical Properties
Appearance | Clear, Colorless to pale yellow aqueous solution | Clear, Colorless to pale yellow aqueous solution | White crystal powder |
Active content (HEDP)%≥ | 50.0 | 60.0 | 90.0 |
Phosphorous acid (as PO33-)%)≤ | 2.0 | 2.0 | 0.80 |
Phosphoric acid (asPO43- )% ≤ | 0.8 | 0.8 | 0.50 |
Chloride (as Cl-)% ≤ | 0.01 | 0.01 | 0.10 |
pH (1% solution) ≤ | 2.0 | 2.0 | 2.0 |
Density (20°C)g/cm3 ≥ | 1.34 | 1.40 | —— |
Chelating valuemg/g | 450 | 500 |
|
Fe2+,mg/L≤ | 10.0 | 10.0 | 5.0 |
Active content(HEDP·H2O)% ≤ | —— | —— | 98.0
|
Company Profile
Hebei Guanlang Biotechnology Co., Ltd. was founded in 2007 , located in Shijiazhuang city which is the capital of Hebei Province and hub sector among Beijing Tianjin and Hebei and has advantage of convenient transportation . Our company is a modern high-tech chemical enterprise with Research & Development, production and sales.
Our company has strong technical strength, advanced equipment, strict quality management system and high-quality after-sales service, adhers to the "customer first and forge ahead" business philosophy and insists on integrity as the company's survival. All for the customers’ satisfaction, all for the long-term healthy development of the enterprise. In the past 10 more years, we have been strictly managing the whole trade process, focusing on every detail, providing customers with all-round services such as product purchase, R & D, quality control, logistics management and so on, and become reliable cooperation company and partner for our clients. Nowadays We formed large varieties, large scale, complete categories, refined degree, added value and high technology content product chain .There are several series including pharmaceutical products, food grade additives, industrial grade, fertilizer grade and mineral products.
In recent five years, the company has implemented the strategy of "going out" vigorously. We has established our branches in Hubei China, Vietnam and Mexico, making our market and sales network more and more perfect. Our company will continue to adhere to the strategic positioning of fine chemical industry in the future and competition ideas of irreplaceable product differentiation, and strive to become to the leading of Chinese chemical industry.
As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality items we offer, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and detailed parameters and any other info weil be sent to you timely for the inquiries. So please make contact with us by sending us emails or call us when you've got any questions about our organization.
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1. quality
our products meet msds safe standard and we have iso and other certificate so yan can get high quality products from our company.
2. price
we are the company which is the joint of trade and industry so we cao provide the competitive price and high quality product.
3.packing
we can do according to the customers' request.
4.transport
ems,dhl, tnt, ups ,fedex, by air, by sea
dhl express, fedex and ems for quantity less than 50kg, usually called as ddu service;
sea shipping for quantity over 500kg; and air shipping is available for 50kg above;
for high value products, please select air shipping and dhl express for safe;
5.service
we offer specialized logistic service including export declaration,customs clearance and every detail during shipment,this makes
us able to offer you one-stop service from the order to the products transported to your hand.
we will try our best to satisfied you.
1. tailor-made for every customers.
2. third-party test for the products you demand.
3. test your counter-samples and produce them for you.
4. best discount for old customers.
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