PRODUCTS

HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID)

Hedp (Hydroxyethylene Diprosphonic Acid) is used metal surface treatment as a corrosion inhibitor for steel.
Hedp (Hydroxyethylene Diprosphonic Acid) is used stabilizer in H2O2 solutions.
Hedp (Hydroxyethylene Diprosphonic Acid) is used sequestering agent in textile auxiliaries.

CAS Number: 2809-21-4
EC Number: 220-552-8
IUPAC Name: (1-Hydroxyethan-1,1-diyl)bis(phosphonic acid)
Molecular Formula: C₂H₈O₇P₂
Molar mass: 206.027 g·mol−1

SYNONYMS:
1-Hydroxyethylidene-1,1-diphosphonic acid, HEDP, Etidronic acid, Dequest 2010, Belclene 660, Codex 661, HEDP, HEDPA, Etidronic acid, 1-Hydroxyethan-1,1-diphosphonsure, Hydroxyethylidenedi(phosphonic acid), 1-Hydroxyethylidene diphosphonic Acid, 1-Hydroxyethane-1,1-diphosphonic Acid, (1-Hydroxyethylidene)biphosphonic acid, Hydroxyethylidene-1,1-Diphosphonic Acid, 1-HYDROXYETHYLIDENEDI (PHOSPHONIC ACID), 1-hydroxy ethylene-1,1-diphosphonic acid, 1-Hydroxyethylidene-1,1-diphosphonic acid, Hydroxy Ethylidene-1,1-Diphosphonic Acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, (1-hydroxyethane-1,1-diyl)bis(phosphonate), Hydroxyethylidene Diphosphonic acid (HEDP), 1-Hydroxyethylidene-1,1-bis-(phosphonic acid), 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID HEDP, 1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP), disodium (1-hydroxyethane-1,1-diyl)bis[hydrogen (phosphonate)], Etidronic acid, 2809-21-4, 1-Hydroxyethylidene-1,1-diphosphonic acid, HEDP, Etidronsaeure, EHDP, Acetodiphosphonic acid, Hydroxyethanediphosphonic acid, Turpinal SL, Acido etidronico, Oxyethylidenediphosphonic acid, Acide etidronique, Dequest 2015, Dequest Z 010, Phosphonic acid, (1-hydroxyethylidene)bis-, Ferrofos 510, 1-Hydroxyethane-1,1-diphosphonic acid, Diphosphonate (base), Dequest 2010, 1-Hydroxyethanediphosphonic acid, (1-Hydroxyethylidene)diphosphonic acid, 1-Hydroxyethane-1,1-bisphosphonic acid, (Hydroxyethylidene)diphosphonic acid, Ethane-1-hydroxy-1,1-diphosphonic acid, Acidum etidronicum, 1-HYDROXY-1,1-DIPHOSPHONOETHANE, (1-Hydroxyethylene)diphosphonic acid, (1-Hydroxyethylidene)bis(phosphonic acid), (1-Hydroxyethylidene)bisphosphonic acid, Hydroxyethane-1,1-diphosphonic acid, 1000SL, RP 61, (1-hydroxy-1-phosphonoethyl)phosphonic acid, Phosphonic acid, (1-hydroxyethylidene)di-, M2F465ROXU, NSC-227995, CHEBI:4907, ethane-1-hydroxy-1,1-bisphosphonic acid, DTXSID6023028, M05BA01, Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, 1-hydroxyethane 1,1-diphosphonic acid, (1-hydroxy-ethylidene)diphosphonic acid, DTXCID103028, Etidron, NSC227995, Xidiphon, Xydiphone, Dicalcium EHDP, EHDP, Dicalcium, Etidronate, Sodium, Etidronate, Disodium, HEDSPA, Etidronate, Dicalcium, RefChem:5819, Salt Etidronate, Tetrapotassium, V10BX03, Diphosphonic Acid, Hydroxyethylidene, 1-Hydroxyethylene Diphosphonate, Disodium, Diphosphonate, Disodium 1-Hydroxyethylene, (1-Hydroxyethylidene)-1,1-diphosphonic acid, (1-hydroxyethylene)diphosphonic acid, Tetrapotassium Salt, 220-552-8, Hydroxyethylidene Diphosphonic Acid, etidronate, Didronel, (1-Hydroxyethane-1,1-diyl)diphosphonic acid, 1-Hydroxyethane-1,1-diphosphonate, Ethane-1-hydroxy-1,1-diphosphonate, Acide etidronique [INN-French], Acido etidronico [INN-Spanish], Acidum etidronicum [INN-Latin], 1,1,1-Ethanetriol diphosphonate, 1-Hydroxyethylidene-1,1-bisphosphonate, (1-hydroxyethane-1,1-diyl)bis(phosphonic acid), MFCD00070585, (1-Hydroxyethylidene)diphoshonic acid, C2H8O7P2, (1-hydroxy-1-phosphono-ethyl)phosphonic acid, Etidronic Acid-d3, CHEMBL871, 2809-21-4 (freeacid), Etidronic Acid-d3 Sodium Salt, (1-hydroxyethan-1,1-diyl)bis(phosphonic acid), Osteoscan, Etidronic acid [USAN:INN:BAN], SMR000038750, 1-Hydroxyethylidene-1,1-biphosphonate, 358730-93-5, HSDB 5898, 1-Hydroxyethylidenediphosphonic acid, NCGC00159352-02, EINECS 220-552-8, Phosphonic acid, 1-hydroxy-1,1-ethanediyl ester, MPI Stannous Diphosphonate, UNII-M2F465ROXU, NSC 227995, BRN 1789291, Etidronicacid, Etidronic acid (USAN/INN), etidronic-acid, Cintichem Technetium 99m Hedspa, Ethane-1-hydroxy-1,1-bisphosphonate, Etidronic acid;HEDP, HDEPA, OEDFK, OEDP, Etidronate (Didronel), 1-HydroxyEthylidene-1,1-DiphosphonicAcid, Prestwick0_000863, Prestwick1_000863, Prestwick2_000863, Prestwick3_000863, ETIDRONATE [VANDF], EC 220-552-8, (1-Hydroxy-1,1-ethanediyl)bis(phosphonic acid), ETIDRONIC ACID [MI], SCHEMBL18607, BSPBio_000905, ETIDRONIC ACID [INN], 0-02-00-00171 (Beilstein Handbook Reference), MLS002207267, MLS002695948, ETIDRONIC ACID [HSDB], ETIDRONIC ACID [USAN], SPBio_002826, BPBio1_000997, GTPL7184, orb1310737, ETIDRONIC ACID [MART.], ETIDRONIC ACID [WHO-DD], Etidronic acid monohydrate (HEDP), HMS3604E03, HY-B0302, Tox21_200417, BBL028139, BDBM50115102, DL-390, s1857, STK721995, AKOS005524039, CCG-266618, DB01077, FH15419, hydroxyethylidene-1,1-diphosphonic acid, s12329, NCGC00159352-04, NCGC00159352-05, NCGC00159352-06, NCGC00159352-14, NCGC00257971-01, CAS-2809-21-4, 1,1-Ethylidenediphosphonic acid, 1-hydroxy-, H0587, NS00006820, (1-Hydroxy-1-phosphono-ethyl)-phosphonic acid, A23202, C07736, D02373, F210597, Q2758338, BRD-K37949327-001-06-3, BRD-K37949327-001-07-1, BRD-K37949327-304-06-1, (1-Hydroxyethane-1,1-diyl)diphosphonic acid monohydrate, Z1269201561, (1-Hydroxyethylidene)bisphosphonic acid 60% aqueous solution, 1-Hydroxyethane-1,1-diphosphonic acid (ca. 60% in Water, ca. 4.2mol/L), (1-Hydroxyethane-1,1-diyl)diphosphonic acid (ca. 60% in Water, ca. 4.2mol/L), 1-Hydroxyethylidene-1,1-diphosphonic acid - 60% aqueous solution,~4.2mol/L, Phosphonic acid,P,P′-(1-hydroxyethylidene)bi, HEDP, HEDP(A), HEDPA, Etidronic Acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Hydroxyethylidene-1,1-diphosphonicacid(HEDP), 1-Hydroxyethylidenediphosphonic Acid, Hydroxyethylidene Diphosphonic acid(HEDP), 1-Hydroxy-1,1-Ethaned

Hedp (Hydroxyethylene Diprosphonic Acid) is an odourless organic phosphorus chemical compound.
For one thing, Hedp (Hydroxyethylene Diprosphonic Acid) is colourless to yellowish acidic liquid.
Moreover, Hedp (Hydroxyethylene Diprosphonic Acid) is an organic phosphonic acid corrosion inhibitor.

The same good corrosion inhibition properties in presence of zinc and other phosphates.
Another key point, Hedp (Hydroxyethylene Diprosphonic Acid) can dissolve the oxidized materials on these metals’ surfaces.
Hedp (Hydroxyethylene Diprosphonic Acid) shows excellent scale and corrosion inhibition effects under temperature 250℃.

Hedp (Hydroxyethylene Diprosphonic Acid) acid has good chemical stability at high pH value.
For this reason, Hedp (Hydroxyethylene Diprosphonic Acid) hard to be hydrolyzed and decomposed under ordinary light and heat conditions.
Hedp (Hydroxyethylene Diprosphonic Acid)'s acid/alkali and chlorine oxidation tolerance are better than that of other organic phosphonic acids (salt).

Hedp (Hydroxyethylene Diprosphonic Acid), known as hydroxypropylidene, with its chemical formula C2H8O7P2, is preferred for acid-type neutral pH based formulations.
By forming stable water-soluble complexes with polyvalent metal ions, phosphonates prevent undesirable effects by inhibiting normal reaction of the metal ion.

Hedp (Hydroxyethylene Diprosphonic Acid) is miscible with water in all proportions and has a strong complexing capacity with polyvalent cations.
Hedp (Hydroxyethylene Diprosphonic Acid) is excellent complexing agent for transition metals such as iron, copper, manganese and zinc.

High purity products are produced and tested to meet the consistent high quality requirements encountered.
Hedp (Hydroxyethylene Diprosphonic Acid) is stable under oxygen bleach conditions.
Hedp (Hydroxyethylene Diprosphonic Acid) can dissolve the oxidized materials on these metals' surfaces.

Hedp (Hydroxyethylene Diprosphonic Acid) solid form is a white crystalline powder with a melting point of 198-200°C, suitable for usage in winter and freezing districts.
Hedp (Hydroxyethylene Diprosphonic Acid) is highly soluble in water, acids, alkalis, methanol and ethanol.

Because of its high purity, Hedp (Hydroxyethylene Diprosphonic Acid) can be used as cleaning agent in electronic fields and as additives in daily chemicals.
Hedp (Hydroxyethylene Diprosphonic Acid) is obtained through the reaction of phosphonic acids.

Hedp (Hydroxyethylene Diprosphonic Acid) is a Bisphosphonate.
Hedp (Hydroxyethylene Diprosphonic Acid) is as a member of the family of drugs known as bisphosphonates, etidronate differs from endogenous pyrophosphate in its resistance to enzymatic hydrolysis.

Hedp (Hydroxyethylene Diprosphonic Acid) adsorbs to hydroxyapatite cells and reduces the number of osteoclasts, thereby inhibiting abnormal bone resorption.
Etidronate may also directly stimulate bone formation by osteoblasts.

Hedp (Hydroxyethylene Diprosphonic Acid) is a small molecule drug with a maximum clinical trial phase of IV (across all indications) that was first approved in 1977 and is indicated for bone disease and has 1 investigational indication.
Hedp (Hydroxyethylene Diprosphonic Acid) is only found in individuals that have used or taken this drug.

Hedp (Hydroxyethylene Diprosphonic Acid) is a diphosphonate which affects calcium metabolism.
Hedp (Hydroxyethylene Diprosphonic Acid) inhibits ectopic calcification and slows down bone resorption and bone turnover.
Bisphosphonates, when attached to bone tissue, are absorbed by osteoclasts, the bone cells that breaks down bone tissue.

Although the mechanism of action of non-nitrogenous bisphosphonates has not been fully elucidated, available data suggest that they bind strongly to hydroxyapatite crystals in the bone matrix, preferentially at the sites of increased bone turnover and inhibit the formation and dissolution of the crystals.

Other actions may include direct inhibition of mature osteoclast function, promotion of osteoclast apoptosis, and interference with osteoblast-mediated osteoclast activation.
Hedp (Hydroxyethylene Diprosphonic Acid) does not interfere with bone mineralization.

In malignancy-related hypercalcemia, Hedp (Hydroxyethylene Diprosphonic Acid) decreases serum calcium by inhibiting tumour-induced bone resorption and reducing calcium flow from the resorbing bone into the blood.
Hedp (Hydroxyethylene Diprosphonic Acid) also reduces morbidity of osteolytic bone metastases by inhibiting tumour-induced bone resorption.

Hedp (Hydroxyethylene Diprosphonic Acid) may promote osteoclast apoptosis by competing with adenosine triphosphate (ATP) in the cellular energy metabolism.
The osteoclast initiates apoptosis and dies, leading to an overall decrease in the breakdown of bone.

Hedp (Hydroxyethylene Diprosphonic Acid) is a diphosphonate which affects calcium metabolism.
Hedp (Hydroxyethylene Diprosphonic Acid) inhibits ectopic calcification and slows down bone resorption and bone turnover.
Hedp (Hydroxyethylene Diprosphonic Acid) is a bisphosphonate used in detergents, water treatment, cosmetics and pharmaceutical treatment.

Hedp (Hydroxyethylene Diprosphonic Acid) shows excellent scale and corrosion inhibition effects and has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions.
Hedp (Hydroxyethylene Diprosphonic Acid) is a high purity product, suitable for cold winter areas.

Because of its high purity, Hedp (Hydroxyethylene Diprosphonic Acid) is especially used as the cleaning agents in electronics industry, and additives in daily chemicals.
Hedp (Hydroxyethylene Diprosphonic Acid) is a 1,1-bis(phosphonic acid) that is (ethane-1,1-diyl)bis(phosphonic acid) having a hydroxy substituent at the 1-position.

Hedp (Hydroxyethylene Diprosphonic Acid) inhibits the formation, growth, and dissolution of hydroxyapatite crystals by chemisorption to calcium phosphate surfaces.
Hedp (Hydroxyethylene Diprosphonic Acid) has a role as a bone density conservation agent, a chelator and an antineoplastic agent.

Hedp (Hydroxyethylene Diprosphonic Acid) is a conjugate acid of an etidronic acid(2-).
Hedp (Hydroxyethylene Diprosphonic Acid) is a first generation bisphosphonate similar to [clodronic acid] and [tiludronic acid].
These drugs were developed to mimic the action of pyrophosphate, a regulator of calcification and decalcification.

Etidronate’s use has decreased over the years in favor of the third generation, nitrogen containing bisphosphonate [zoledronic acid], [ibandronic acid], [minodronic acid], and [risedronic acid].
Hedp (Hydroxyethylene Diprosphonic Acid) was granted FDA approval on 1 September 1977.

Hedp (Hydroxyethylene Diprosphonic Acid) is widely used as scale and corrosion inhibitor in industrial circulating cooling water systems of electric power, chemical industry, metallurgy, chemical fertilizer, and also in medium or low pressure boilers, oilfield water injection and oil pipeline.

Hedp (Hydroxyethylene Diprosphonic Acid) is freely miscible in water, alcohol, and organic solvents and is very stable across wide pH and temperature ranges.
Hedp (Hydroxyethylene Diprosphonic Acid) is represented by the formula: C2H8O7P2.

Hedp (Hydroxyethylene Diprosphonic Acid) acid with its CAS number 2809-21-4 is a cost effective scale inhibitor used in various industrial applications such as industrial water treatment and detergents.
Additionally Hedp (Hydroxyethylene Diprosphonic Acid) shows a good stability in presence of chlorine as well as corrosion inhibition properties in presence of zinc and other phosphates.

Hedp (Hydroxyethylene Diprosphonic Acid) is a kind of organic phosphonic acid.
Hedp (Hydroxyethylene Diprosphonic Acid) is a bisphosphonate drug.
Hedp (Hydroxyethylene Diprosphonic Acid) is non-nitrogenous bisphosphonate.

Hedp (Hydroxyethylene Diprosphonic Acid) was patented in 1966 and approved for medical use in 1977.
For medicinal purposes, Hedp (Hydroxyethylene Diprosphonic Acid) has been obsolete since the early 2010's.
Hedp (Hydroxyethylene Diprosphonic Acid) also known as etidronic acid which shows multifunctional properties that includes scale inhibition and corrosion inhibition.

Hedp (Hydroxyethylene Diprosphonic Acid) is very good complexing agent for metal ions like Fe, Cu, and Zn.
Hedp (Hydroxyethylene Diprosphonic Acid) shows good chemical stability under high pH value.
Furthermore, Hedp (Hydroxyethylene Diprosphonic Acid) is difficult to hydrolyze and decompose under ordinary light and heat conditions.
The solid state of Hedp (Hydroxyethylene Diprosphonic Acid) is crystal powder, suitable for usage in winter and freezing districts.

USES and APPLICATIONS of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
Because of its high purity, Hedp (Hydroxyethylene Diprosphonic Acid) can be used as cleaning agent in electronic fields and as additives in daily chemicals.
Hedp (Hydroxyethylene Diprosphonic Acid) is also used as corrosion and scale inhibition in circulating cooling water systems, low-pressure boilers and in oil field applications such as electric power, refineries, chemical industry, fertilizer and metallurgy etc.

Hedp (Hydroxyethylene Diprosphonic Acid) is widely used in detergent application as chelant.
Aquapharm also supply etidronic acid for peroxide stabilizer, electroplating chelating agent and dye-fixing agent.
Use of Hedp (Hydroxyethylene Diprosphonic Acid): Boiler and heat exchanger scale inhibitors and corrosion inhibitors, non-cyanide electroplating complexing agent, soap chelating agent, metal and non-metallic cleaning agent

Hedp (Hydroxyethylene Diprosphonic Acid) can also be used as chelating agent in the textile industry.
Hedp (Hydroxyethylene Diprosphonic Acid) is used cooling water systems / industrial water treatment.
Hedp (Hydroxyethylene Diprosphonic Acid) is used industrial detergents.

Hedp (Hydroxyethylene Diprosphonic Acid) is used swimming pools.
Hedp (Hydroxyethylene Diprosphonic Acid) is used metal surface treatment as a corrosion inhibitor for steel.
Hedp (Hydroxyethylene Diprosphonic Acid) is used stabilizer in H2O2 solutions.

Hedp (Hydroxyethylene Diprosphonic Acid) is used sequestering agent in textile auxiliaries.
Hedp (Hydroxyethylene Diprosphonic Acid) is used as scale and corrosion inhibitor in cooling water systems.
Hedp (Hydroxyethylene Diprosphonic Acid) is used as scale and corrosion inhibitor in industrial water treatment.

Hedp (Hydroxyethylene Diprosphonic Acid) is used as industrial detergents.
Hedp (Hydroxyethylene Diprosphonic Acid) is used in Swimming pools.
Hedp (Hydroxyethylene Diprosphonic Acid) is used in metal surface treatment as corrosion inhibitor for steel.

Water Treatment: Hedp (Hydroxyethylene Diprosphonic Acid) is used as a scale and corrosion inhibitor in industrial water systems, including cooling towers, boilers, and desalination plants.
Hedp (Hydroxyethylene Diprosphonic Acid) is used as stabilizer in H2O2 solutions.

Hedp (Hydroxyethylene Diprosphonic Acid) is used as sequestering agent in textile auxiliaries.
Detergents: Hedp (Hydroxyethylene Diprosphonic Acid) iss incorporated into household and industrial detergents to enhance cleaning efficiency by preventing scale formation.

Cosmetics: Hedp (Hydroxyethylene Diprosphonic Acid) is utilized in personal care products to stabilize formulations and prevent metal ion-induced degradation.
Oilfield Chemicals: Hedp (Hydroxyethylene Diprosphonic Acid) is applied in oil and gas industry for water treatment and as a dispersant in drilling fluids.

Metalworking Fluids: Hedp (Hydroxyethylene Diprosphonic Acid) is used in metalworking processes to prevent scale formation and corrosion.
Hedp (Hydroxyethylene Diprosphonic Acid) is a highly effective scale and corrosion inhibitor known for its excellent chelating properties.
Hedp (Hydroxyethylene Diprosphonic Acid) is commonly utilized in industrial water systems, boilers, cooling towers, and other water treatment processes.

Hedp (Hydroxyethylene Diprosphonic Acid) works by forming stable complexes with metal ions, such as calcium, magnesium, and iron, thereby preventing their precipitation and deposition as scales.
Hedp (Hydroxyethylene Diprosphonic Acid) also inhibits the corrosion of metal surfaces by forming a protective film.

Hedp (Hydroxyethylene Diprosphonic Acid) is a widely used organic phosphonic acid compound in water treatment applications.
These properties make Hedp (Hydroxyethylene Diprosphonic Acid) an essential component in water treatment formulations to control scaling and corrosion issues, ensuring the efficient and reliable operation of water systems.

Hedp (Hydroxyethylene Diprosphonic Acid) is primarily used in cooling water treatment, as a corrosion inhibitor, deflocculant, and sequestrant.
Hedp (Hydroxyethylene Diprosphonic Acid) can also be used in textiles, sugar processing, dyes, soaps & detergents, oilfields, peroxide bleaching, and metal surface treatment products.

Hedp (Hydroxyethylene Diprosphonic Acid) is an organic phosphonic acid scale and corrosion inhibitor, which can form stable complexes with iron, copper, zinc and other metal ions.
Hedp (Hydroxyethylene Diprosphonic Acid) can dissolve the oxides on the metal surface.

Hedp (Hydroxyethylene Diprosphonic Acid) can still play a good role in corrosion and scale inhibition at 250 °C, and it is still very stable at high pH, not easy to be hydrolyzed, and not easy to decompose under general photothermal conditions.
The acid and alkali resistance and chlorine oxidation resistance are better than other organic phosphonic acids (salts).

Hedp (Hydroxyethylene Diprosphonic Acid) can form a six-ring chelate with metal ions in water, especially calcium ions, so it has good scale inhibition effect and obvious solubility limit effect.
When used in combination with other water treatment agents, Hedp (Hydroxyethylene Diprosphonic Acid) shows an ideal synergistic effect.

Hedp (Hydroxyethylene Diprosphonic Acid) is a high-purity product, suitable for cold winter areas.
Hedp (Hydroxyethylene Diprosphonic Acid) is especially suitable for cleaning agents and daily chemical additives in the electronic industry.

Hedp (Hydroxyethylene Diprosphonic Acid) is widely used in electric power, chemical industry, metallurgy, chemical fertilizer and other industrial circulating cooling water systems, as well as scale and corrosion inhibition of medium and low pressure boilers, oilfield water injection and oil pipelines.

In the textile industry, Hedp (Hydroxyethylene Diprosphonic Acid) can be used as a cleaning agent for metals and non-metals.
Also, Hedp (Hydroxyethylene Diprosphonic Acid) is peroxide stabilizers and fixatives for bleaching and dyeing industries, complexing agent in cyanide-free electroplating industry, and carrier of radioactive elements in pharmaceutical industry.

Hedp (Hydroxyethylene Diprosphonic Acid) is used as a scale inhibitor, the concentration is generally 1-10mg/L.
Hedp (Hydroxyethylene Diprosphonic Acid) is used as a corrosion inhibitor, the concentration is generally 10-50mg/L.
Hedp (Hydroxyethylene Diprosphonic Acid) is used as a cleaning agent, the concentration is generally 1000-2000mg/L.

Hedp (Hydroxyethylene Diprosphonic Acid) is usually used in conjunction with a polycarboxylate scale inhibitor and dispersant.
When Hedp (Hydroxyethylene Diprosphonic Acid) is used in other industries, the dosage should be determined according to the test.
Hedp (Hydroxyethylene Diprosphonic Acid) is used in various industrial applications.

Such as industrial water treatment corrosion inhibitor and detergents.
Hedp (Hydroxyethylene Diprosphonic Acid) further shows good stability in presence of chlorine.
The solid state of Hedp (Hydroxyethylene Diprosphonic Acid) is crystal powder.

Because of its high purity, Hedp (Hydroxyethylene Diprosphonic Acid) is suitable for usage in winter and freezing districts.
Solid state Hedp (Hydroxyethylene Diprosphonic Acid) can be used as a cleaning agent in electronic fields and as additives in daily chemicals.
(There are too many impurities in the liquid, so Hedp (Hydroxyethylene Diprosphonic Acid) can’t be used for electronic cleaning and daily use.)

Hedp (Hydroxyethylene Diprosphonic Acid) can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.
In other words, Hedp (Hydroxyethylene Diprosphonic Acid) can react with metal ions in the water system to form a hexa-element chelating complex, with calcium ion in particular.

Therefore, Hedp (Hydroxyethylene Diprosphonic Acid) has good antiscale and visible threshold effects.
When built together with other water treatment chemicals, Hedp (Hydroxyethylene Diprosphonic Acid) shows good synergistic effects.
Hedp (Hydroxyethylene Diprosphonic Acid) can be also used as chelating agent in the textile industry.

Hedp (Hydroxyethylene Diprosphonic Acid) is widely used in several end use applications such as detergents (as chelant), industrial and institutional cleaners, personal care products, water treatment circulating cooling water systems, low-pressure boilers, swimming pool stain prevention, metal ion control, oilfield, textile, paper, peroxide stabilizer, electroplating, Hedp (Hydroxyethylene Diprosphonic Acid) also can be used for formulating RO membrane antiscalants, thermal desalination antiscalants, formulation for treating sterilizers etc.

In light woven industry, Hedp (Hydroxyethylene Diprosphonic Acid) is used as detergent for metal and nonmetal.
In dyeing industry, Hedp (Hydroxyethylene Diprosphonic Acid) is used as peroxide stabilizer and dye-fixing agent.
In non-cyanide electroplating, Hedp (Hydroxyethylene Diprosphonic Acid) is used as chelating agent.

Water Treatment: Hedp (Hydroxyethylene Diprosphonic Acid) is used in water treatment processes for scale prevention and corrosion inhibition.
Chemical Industry: Hedp (Hydroxyethylene Diprosphonic Acid) can be used as a solvent and reagent in the chemical industry.
Hedp (Hydroxyethylene Diprosphonic Acid) is used as a retardant in concrete, scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.

In light woven industry, Hedp (Hydroxyethylene Diprosphonic Acid) is used as detergent for metal and nonmetal.
In dyeing industry, Hedp (Hydroxyethylene Diprosphonic Acid) is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent.

Usually, Hedp (Hydroxyethylene Diprosphonic Acid) is also used together with polycarboxylic acid(superplasticizer), in which it acts as reducing agent.
Cosmetic: In this sector, Hedp (Hydroxyethylene Diprosphonic Acid) is used as a complexing agent (such as thioglycolic acid, thiolactic acid) in hair cosmetics containing mercaptan groups.

Metal: Hedp (Hydroxyethylene Diprosphonic Acid) is used as an additive in metal processing processes (antiskalant, rust inhibitors, chelators, slurry air conditioners, pulp bleachings, deflocculants, distributors, metal cleaners, galvanic and crystal growth regulators).
Agriculture: These chemical fertilizers are used in corrosion inhibition applications in addition to the main applications of agricultural chemicals such as pesticides and soil fertility.

Besides these applications, Hedp (Hydroxyethylene Diprosphonic Acid) can also be used as cleaning agent of metal and nonmetal in the textile industry, as peroxide stabilizer and fixing agent in bleaching and dyeing industry, as complexing agent in cyanide free electroplating industry, as the carrier of radioactive elements in pharmaceutical industry, and so on.

Hedp (Hydroxyethylene Diprosphonic Acid) is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.
In light woven industry, Hedp (Hydroxyethylene Diprosphonic Acid) is used as detergent for metal and nonmetal.

In dyeing industry, Hedp (Hydroxyethylene Diprosphonic Acid) is used as peroxide stabilizer and dye-fixing agent.
In non-cyanide electroplating, Hedp (Hydroxyethylene Diprosphonic Acid) is used as chelating agent.
The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent.

Usually, Hedp (Hydroxyethylene Diprosphonic Acid) is used together with polycarboxylic acid.
Chemical: Hedp (Hydroxyethylene Diprosphonic Acid) is a versatile phosphonate compound known for its corrosion inhibition, chelating, and stabilizing properties, making it valuable across a range of industrial and consumer applications.

In industrial contexts, Hedp (Hydroxyethylene Diprosphonic Acid) acts as a retardant of cement hydration in concrete, extending the dormant period before hardening begins.
Hedp (Hydroxyethylene Diprosphonic Acid) is also used as a scale and corrosion inhibitor in circulating cooling water systems, oil fields, and low-pressure boilers, serving industries such as electric power, chemical manufacturing, metallurgy, and fertilizer production.

Beyond these applications, Hedp (Hydroxyethylene Diprosphonic Acid) is utilized in the dyeing industry as a peroxide stabilizer and dye-fixing agent, and in non-cyanide electroplating where it functions as a chelating agent.
In the light woven industry, Hedp (Hydroxyethylene Diprosphonic Acid) serves as a detergent for cleaning metal and non-metal surfaces and is often combined with polycarboxylic acids (superplasticizers) as a reducing agent.

Typical dosages range from 1–10 mg/L for scale inhibition, 10–50 mg/L for corrosion inhibition, and 1000–2000 mg/L for detergent use.
As a chelating agent, Hedp (Hydroxyethylene Diprosphonic Acid) binds to calcium, iron, and other metal ions, helping to reduce their potential environmental impact, particularly through greywater discharge into groundwater.

Its phosphonate structure also imparts corrosion resistance to unalloyed steel, and Hedp (Hydroxyethylene Diprosphonic Acid) retards rancidification and oxidation of fatty acids.
In detergents and cleaning agents, Hedp (Hydroxyethylene Diprosphonic Acid) and its salts help mitigate the adverse effects of hard water and stabilize peroxides during bleaching by inhibiting degradation caused by transition metals.

Within the cosmetics industry, Hedp (Hydroxyethylene Diprosphonic Acid) is used as a radical formation suppressant, emulsion stabilizer, and viscosity control agent.
Although approved for use in cosmetic products, it is recommended that products containing Hedp (Hydroxyethylene Diprosphonic Acid), particularly soaps, be thoroughly rinsed from the skin after use.

Hedp (Hydroxyethylene Diprosphonic Acid) also finds application in swimming pool maintenance, where it functions as a stain inhibitor by preventing metal ions from precipitating and staining pool surfaces.
Hedp (Hydroxyethylene Diprosphonic Acid) is used in several end use applications that include detergents, water treatment, oilfield, textile, paper and personal care.

Furthermore, Hedp (Hydroxyethylene Diprosphonic Acid) can be used for formulating RO membrane antiscalants, thermal desalination antiscalants, formulation for treating sterilizers etc.
Hedp (Hydroxyethylene Diprosphonic Acid) can be used directly also for such applications as single or in combination with a suitable dispersant.

-Medical uses of Hedp (Hydroxyethylene Diprosphonic Acid):
Hedp (Hydroxyethylene Diprosphonic Acid)is a bisphosphonate once used to strengthen bone, treat osteoporosis, and treat Paget's disease of bone.
Bisphosphonates primarily reduce osteoclastic activity, which prevents bone resorption, and thus moves the bone resorption/formation equilibrium toward the formation side and hence makes bone denser in the long run.

Etidronate, unlike other bisphosphonates, also prevents bone calcification.
For this reason, other bisphosphonates, such as alendronate, are preferred when fighting osteoporosis.

To prevent bone resorption without affecting too much bone calcification, etidronate is administered only for a short time once in a while, for example for two weeks every 3 months.
When given on a continuous basis, say every day, etidronate will altogether prevent bone calcification.

This effect may be useful and etidronate was in fact used this way to fight heterotopic ossification.
But in the long run, if used on a continuous basis, it will cause osteomalacia.

-Water uses of Hedp (Hydroxyethylene Diprosphonic Acid):
Hedp (Hydroxyethylene Diprosphonic Acid) is used in industrial water treatment systems and water systems as sequesterers to control metal ions in water systems.
Hedp (Hydroxyethylene Diprosphonic Acid) provides chlorine resistance in swimming pools.

-Chemistry uses of Hedp (Hydroxyethylene Diprosphonic Acid):
Hedp (Hydroxyethylene Diprosphonic Acid) is used in stabilization of peroxide bonds in alkaline environments.
Hedp (Hydroxyethylene Diprosphonic Acid) is also used as a stabilizer in chemicals such as bleach and so on.

PROPERTIES of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
Hedp (Hydroxyethylene Diprosphonic Acid) is a kind of scale and corrosion inhibitor which belongs to organic phosphonic acid.
Hedp (Hydroxyethylene Diprosphonic Acid) can form stable complexes with iron, copper, zinc and other metal ions, and can also dissolve the metal surface oxide.
Under 250 ℃ condition, Hedp (Hydroxyethylene Diprosphonic Acid) can still play a good corrosion and scale inhibition effect.

Hedp (Hydroxyethylene Diprosphonic Acid) has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions.
Hedp (Hydroxyethylene Diprosphonic Acid)'s acid/alkali and chlorine oxidation tolerance show better than that of other organic phosphonic acid (salt) acids (salt).

Hedp (Hydroxyethylene Diprosphonic Acid) can react with metal ions in water system to form hexa-element chelating complex, especially with calcium ions.
Therefore, Hedp (Hydroxyethylene Diprosphonic Acid) has good anti-scale and visible threshold effects.
When used in combination with other water treatment chemicals, Hedp (Hydroxyethylene Diprosphonic Acid) shows ideal synergistic effects.

BENEFITS & CHARACTERISTICS of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
*High Stability:
Hedp (Hydroxyethylene Diprosphonic Acid)
exhibits excellent stability under high pH conditions and is resistant to hydrolysis.

*Effective Chelation:
Hedp (Hydroxyethylene Diprosphonic Acid) forms stable complexes with metal ions, preventing scale formation and corrosion.

*Thermal Resistance:
Hedp (Hydroxyethylene Diprosphonic Acid) maintains efficacy at temperatures up to 250°C.

*Versatility:
Hedp (Hydroxyethylene Diprosphonic Acid) is suitable for use in various industries, including water treatment, detergents, cosmetics, and oilfield chemicals.

*Environmental Impact:
Low toxicity to aquatic life when used in recommended concentrations.

PROPERTIES of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
Hedp (Hydroxyethylene Diprosphonic Acid) is an organophosphoric acid corrosion inhibitor.
Hedp (Hydroxyethylene Diprosphonic Acid) can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.

Hedp (Hydroxyethylene Diprosphonic Acid) can dissolve the oxidized materials on these metals’ surfaces.
Hedp (Hydroxyethylene Diprosphonic Acid) shows excellent scale and corrosion inhibition effects under temperature 250℃.

Hedp (Hydroxyethylene Diprosphonic Acid) has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions.
Hedp (Hydroxyethylene Diprosphonic Acid)'s acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt).

Hedp (Hydroxyethylene Diprosphonic Acid) can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular.
Therefore, Hedp (Hydroxyethylene Diprosphonic Acid) has good antiscale and visible threshold effects.
When built together with other water treatment chemicals, Hedp (Hydroxyethylene Diprosphonic Acid) shows good synergistic effects.

SYNTHESIS of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
Hedp (Hydroxyethylene Diprosphonic Acid) can be prepared by reactions of dialkylphosphites and carboxylic acid anhydrides.
Other precursors include phosphorus trichloride and phosphorous acid.

USAGE of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent.
Usually, Hedp (Hydroxyethylene Diprosphonic Acid) is used together with polycarboxylic acid.

FEATURES of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
Hedp (Hydroxyethylene Diprosphonic Acid) is an organophosphonate corrosion inhibitor.
Hedp (Hydroxyethylene Diprosphonic Acid) shows multifunctional properties that includes scale inhibition and corrosion inhibition.

Hedp (Hydroxyethylene Diprosphonic Acid) is noted for excellent CaCO3 inhibitor and water hardness stabilizer.
Hedp (Hydroxyethylene Diprosphonic Acid) is very good complexing agent for metal ions like Fe, Cu, and Zn.

Hedp (Hydroxyethylene Diprosphonic Acid) can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular.

When built together with other water treatment chemicals, Hedp (Hydroxyethylene Diprosphonic Acid) shows good synergistic effects.
Hedp (Hydroxyethylene Diprosphonic Acid) shows excellent stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions.

Hedp (Hydroxyethylene Diprosphonic Acid) shows excellent scale and corrosion inhibition effects under temperature 250℃.
Hedp (Hydroxyethylene Diprosphonic Acid) acid/alkali and chlorine oxidation tolerance are better than that of other organophosphonate (salts).

PACKAGING & STORAGE of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
Hedp (Hydroxyethylene Diprosphonic Acid) can also be custom-made according to user needs.
Store Hedp (Hydroxyethylene Diprosphonic Acid) in a cool and ventilated indoor place, moisture-proof, valid for twelve months.

PHYSICAL and CHEMICAL PROPERTIES of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
Appearance: White to pale yellow crystalline powder or colorless to pale yellow liquid
Solubility: Highly soluble in water
Melting Point: Not specified
Boiling Point: Not specified
Density: Not specified
pH: Acidic
Stability: Stable under normal conditions; decomposes above 250°C
Reactivity: Can chelate with metal ions such as Fe²⁺, Cu²⁺, and Zn²⁺
Appearance: Clear Colourless to Pale yellow aqueous solution
Physical State: Aqueous Solution

Active Content: 60% (as Acid)
Specific Gravity @ 25°C: 1.44
pH of 1% Solution @ 25°C: <2
Freezing Point °C: -25
Chloride as Cl-: <0.01%
Iron (Fe) PPM: <10
CAS: 2809-21-4
EINECS: 220-552-8
InChI: InChI=1/C2H8O7P2/c1-2(3,10(4,5)6)11(7,8)9/h3H,1H3,(H2,4,5,6)(H2,7,8,9)/p-4

InChIKey: DBVJJBKOTRCVKF-UHFFFAOYSA-N
Molecular Formula: C2H8O7P2
Molar Mass: 206.03
Density: 1.45 (60% aq.)
Melting Point: 198~199°C
Boiling Point: 578.8±60.0 °C (Predicted)
Flash Point: 303.8°C
Water Solubility: Soluble in water
Vapor Pressure: 0 Pa at 25°C
Appearance: Powder

Color: White
Merck: 14,3863
BRN: 1789291
pKa: 1.35, 2.87, 7.03, 11.3 (at 25°C)
pH: pH (1.7→100, 25°C) : 1.3–1.8
Storage Condition: Sealed in dry, Room Temperature
Stability: Stable. Incompatible with strong oxidizing agents
MDL: MFCD00070585
Physical and Chemical Properties: Density 1.45 (60% aq.)
CAS Number: 2809-21-4
Chemical Formula: C2H8O7P2

Appearance: Clear to slightly yellow liquid
Active Ingredient Content: ≥ 60%
pH (1% aqueous solution): 2.0–3.0
Density (at 20°C): 1.36–1.46 g/cm³
Solubility in Water: Completely Soluble
Chloride Content (as Cl): ≤ 0.1%
Iron Content (as Fe): ≤ 20 ppm
Phosphorous Acid Content (as H3PO3): ≤ 1.0%
Phosphoric Acid Content (as H3PO4): ≤ 0.6%

Molecular Weight: 206.03 g/mol
XLogP3-AA: -3.7
Hydrogen Bond Donor Count: 5
Hydrogen Bond Acceptor Count: 7
Rotatable Bond Count: 2
Exact Mass: 205.97452659 Da
Monoisotopic Mass: 205.97452659 Da
Topological Polar Surface Area: 135 Å²
Heavy Atom Count: 11
Formal Charge: 0

Complexity: 211
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes

CAS No.: 2809-21-4
UN No.: 3265
Molecular Formula: C2H8O7P2
InChIKeys: InChIKey=DBVJJBKOTRCVKF-UHFFFAOYSA-N
Molecular Weight: 206.02800
Exact Mass: 206.03
EC Number: 220-552-8
UNII: M2F465ROXU
NSC Number: 227995
DSSTox ID: DTXSID6023028

PSA: 154.91000
XLogP3: -3.7
Appearance: Liquid
Density: 1.45 (60% aq.)
Melting Point: 155 °C (decomp)
Boiling Point: 578.8ºC at 760 mmHg
Flash Point: 303.8ºC
Refractive Index: 1.586
Water Solubility: Soluble in water.
Vapor Pressure: 8.34E-16mmHg at 25°C

CAS number: 2809-21-4
EINECS number: 220-552-8
Molecular formula: C2H8O7P2
Molar Weight: 206.03 g / mol
Active ingredients: 58,0-62,0%
Chloride: 0.3% max
Iron: 10ppm max
Physical state: Yellow liquid clear

Melting point: -25 C
Specific gravity 1,43-1,46
Solubility in water: miscible
Ignition: pH <2 (1% solution)
Other names: Etidronic acid
Chemical Formula: C2H8O7P2
Molecular Weight: 206.03 g/mol
Physical State (20 °C): Liquid
Physical State: Colorless liquid

Odor: Odorless or mild chemical scent
Solubility: Highly soluble in water
Storage Temperature: Room Temperature (Recommended in a cool and dark place, <15 °C)
CAS RN: 2809-21-4
Reaxys Registry Number: 1789291
PubChem Substance ID: 87570971
Merck Index (14): 3863
MDL Number: MFCD00070585

FIRST AID MEASURES of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.

FIRE FIGHTING MEASURES of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.

STABILITY and REACTIVITY of HEDP (HYDROXYETHYLENE DIPHOSPHONIC ACID):
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available