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Etidronic Acid (HEDP) CAS No. 2809-21-4

  • Shanghai, China
  • 20mts/Month
  • L/C, T/T, D/P, Western Union, Paypal, Money Gram
  • Model NO.: 60%
  • CAS: 2809-21-4
  • Density: 1.28-1.38 G/Ml at 20 ° C
  • Trademark: SWC
  • Transport Package: 250kgs Net in PE Drum, 1250kgs Net in IBC or Isota
  • Origin: China
  • CAS No.: 2809-21-4
  • Formula: C2h8o7p2
  • EINECS: 2809-21-4
  • Acid-Base Property: Acidic Surface Disposal Agent
  • Environmental Protection: No
  • Product Name: Etidronic Acid (HEDP)
Etidronic Acid (HEDP) CAS No. 2809-21-4
Product Description
Product Name: 1-Hydroxyethylidene-1,1-diphosphonic acid

Synonyms Hydroxyethylidenedi(phosphonic acid); Etidronic acid; HEDP
Molecular Formula C2H8O7P2
Molecular Weight 206.03
CAS Number 2809-21-4

Appearance white crytalline powder
Solubility miscible in water
Stability stable under ordinary conditions
White crystalline powder
Active acid content, %
90.0 min
H3PO3 (As PO33- ), %
0.5 max
H3PO4 (As PO43- ), %
0.3 max
Chloride (Aa Cl-),%
0.05 max
PH (As 1% solution,20ºC)
2.0 max
Iron (As Fe), ppm
10ppm max
Active Matter (as HEDP.H2O), %
98.0 min
HEDP is noted for excellent CACO3 scale inhibition and chlorine stability. It is widely used in industry as a sequestering agent and calcium carbonate scale inhibitor for applications in cooling water treatment, boiler water treatment, industrial and institutional cleaners, swimming pool stain prevention, personal care products, metal ion control.
Recommended Uses: Cooling water treatment, Boiler treatment, I & I Cleaners, Metal Ion Control, Swimming pool, Personal care products.

Packing and Storage
Packing: In 25kgs net plastic woven bag.
Storage: Keep tightly closed.

Safety Information
UN 3261 Class 8 PG III
Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.

Etidronic Acid (HEDP) CAS No. 2809-21-4Etidronic Acid (HEDP) CAS No. 2809-21-4Etidronic Acid (HEDP) CAS No. 2809-21-4Etidronic Acid (HEDP) CAS No. 2809-21-4
Frequently Asked Questions

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight;
For those high value products, you just need to freight and certain product cost. When we both cooperate for
some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C. You can choose the one which is convenient for you.

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)
or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,
shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on
where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.

Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide
for you all are qualified. We will have goods tested and provide COA before delivery for sure.

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