High Quality Water Treatment Chemical Hydroxyethylenediphosphonic Acid CAS 2809-21-4

• Customization: Available
• CAS No.: 2809-21-4
• Formula: C2h8o7p2
• Model NO.: CAS 2809-21-4
• Certification: REACH
• Color: White
• Appearance: Powder
• Type: Water Treatment
• Usage: Daily Use Chemical
• Model No.: 2809-21-4
• Sample: Available
• Delivery: 15 Days
• Customization: Available
• Transport Package: 250kg Drum/IBC Drum
• Specification: 250kg Drum/IBC Drum
• Trademark: HIGHWIN
• Origin: China
• Production Capacity: 3000ton/Year

Product Description

Product Parameters

Name: Liquid 1-Hydroxy Ethylidene-1 1-Diphosphonic Acid Corrosion Inhibitor/ HEDP
CAS: 2809-21-4
Chemical formula:C2H8O7P2
Appearance: white crystalline powder

Hydroxyethylenediphosphonic acid (HEDP) is a new type of chlorine-free electroplating complexing agent, which is used as the main agent for water quality stability in circulating cooling water system and plays the role of corrosion inhibition and scale inhibition.

Sodium tripolyphosphate is a white powder crystal with good fluidity. The density of type 1 is 2.62g/cm³, and the density of type 2 is 2.57g/cm³. Melting point 622ºC. It is easily soluble in water, and its aqueous solution is alkaline.

Another name:	HEDP	Chemical formula:	C2H8O7P2
Molecular weight:	206.03	EINECS No.:	220-552-8
Vapour pressure:	0Pa at 25ºC	Density:	1.45 (60% aq.)
Melting point:	198~199ºC	Boiling point:	578.8±60.0 °C(Predicted)
Color	colorless liquid	Soluble:	Soluble in water.
Storage	Sealed in dry,Room Temperature	PH	pH (1.7→100, 25ºC) : 1.3~1.8

PRODUCT TECHNICAL SPECIFICATION:

Product Name	HEDP; Etidronic acid
CAS No.	2809-21-4
MF	C2H8O7P2
Appreance	Clear, Colorless to pale yellow aqueous solution	White crystal powder
phosphorous(PO33-)content,%	≥60.0	≥90.0
phosphoric(PO43-)content,%	≤2.0	≤2.0
Cl- content,ppm	≤0.8	≤0.3
mgCaCO3/g	≤200	≤50
mgCaCO3/g	≥500	--
density(20oC),g/cm3	≤2.0	≤2.0
Fe2+ content,ppm	≤10.0	≤10.0
color,Hazen	≤50	--
HEDP·H2O,%	---	≥98.0

Application

1. In circulating cool water system: as scale and corrosion inhibitor.
2. In oil field and low-pressure boilers: as scale and corrosion inhibitor.
3. In light woven industry: as detergent for metal and nonmetal.
4. Dyeing: as peroxide stabilizer and dye-fixing agent.
5. In non-cyanide electroplating: as chelating agent.
6. RO system: as scale inhibitor.

Packaging & Shipping

 

Hubei Highwin New Material Technology Co., Ltd. 
focuses on the research and development, production and 
sales of epoxy resin and other chemical raw materials. 
We have our own R&D laboratory, by ordinating our suppiers 
all over the world and manufacturing products with cooperatedbased factories, we're keeping enhance our competitiveness in the market. 
Before developing overseas sales, we have been rooted in 
chemical raw materials for more than 20 years and have 
already been one of the top suppliers in China after years of 
efforts. There are a group of hard-working, motivated, and creative staff working not only for the company but also for you--our respectable customer and partner! Based on good service and high-quality products, we're widely praised and trusted by customers and keep long-lasting relationships with them. 
We aim to grow responsibly and believe we can build a good 
ethos and benchmark for the raw material industry!

FAQ

FAQ:
Q1: Can I get samples?
A: Yes, we can provide you with free samples, but the freight needs to be paid by you, I hope you can understand.
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 1kg. But we can also accept less quantity such as 100g 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:How is your after-sales service?
A: If you have any technical or quality problems after receiving the goods, you can always contact us. If the problem is caused by us, we will send you the goods for free or refund your loss.