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Etidronic acid

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Identification
Molecular formula
C2H8O7P2
CAS number
2809-21-4
IUPAC name
(1-hydroxy-1-phosphono-ethyl)phosphonic acid
State
State

Etidronic acid exists as a solid at room temperature. The pure compound is typically found in powder form or as crystalline solid, and is often used in its solid state for industrial applications.

Melting point (Celsius)
198.00
Melting point (Kelvin)
471.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
206.03g/mol
Molar mass
206.0280g/mol
Density
1.4520g/cm3
Appearence

Etidronic acid is a colorless solid, that is usually encountered as a powder. It can also appear in a crystalline form. It readily dissolves in water and forms a clear solution.

Comment on solubility

Solubility of (1-hydroxy-1-phosphono-ethyl)phosphonic acid

The solubility of (1-hydroxy-1-phosphono-ethyl)phosphonic acid, with the chemical formula C2H8O7P2, is an intriguing aspect of its chemical properties.

This compound is known to exhibit the following solubility characteristics:

  • Highly water-soluble: (1-hydroxy-1-phosphono-ethyl)phosphonic acid is soluble in water, making it particularly useful in aqueous applications.
  • Solvent compatibility: It tends to be soluble in a variety of polar solvent systems, which enhances its versatility in formulations.
  • pH dependency: The solubility can be influenced by the pH of the solution, as its acidic nature may affect the ionization and thus the solubility profile.

It is important to note that temperature and concentration of the solvent can also play significant roles in the solubility behavior of this compound. As with many phosphonic acids, the presence of phosphonate groups enhances interaction with water molecules, facilitating dissolution.

In summary, the solubility profile of (1-hydroxy-1-phosphono-ethyl)phosphonic acid can be characterized by its strong solubility in water and polar solvents, influenced by environmental factors such as pH and temperature.

Interesting facts

Interesting Facts about (1-Hydroxy-1-Phosphono-Ethyl)Phosphonic Acid

(1-Hydroxy-1-Phosphono-Ethyl)Phosphonic acid, often referred to as HEDP, is a fascinating compound with significant applications in various fields, particularly in chemistry and engineering. Here are some intriguing points to consider:

  • Biodegradable Chelating Agent: HEDP is known for its excellent chelating properties, allowing it to bind metal ions effectively. This makes it a valuable addition in the formulation of cleaning agents.
  • Water Treatment: It plays a critical role in water treatment processes, particularly in preventing scale formation in cooling systems and boilers. HEDP acts as a scale inhibitor, contributing to the overall efficiency of these systems.
  • Role in Agriculture: In the field of agriculture, HEDP is utilized as an agent to enhance the availability of phosphorus in fertilizers. This can lead to improved plant growth and crop yield.
  • Surface Treatment: Its applications extend to the surface treatment of metals, helping to improve corrosion resistance when used as a part of a formulated product.
  • Environmentally Friendly: HEDP is considered more environmentally benign compared to other phosphonic acids, making it a preferred choice for eco-friendly applications.

As Chemistry student, it's crucial to understand not just the structure of compounds like HEDP but also their real-world implications and applications. As stated in the words of renowned chemist Linus Pauling, “The best way to have a good idea is to have a lot of ideas.” Exploring compounds like HEDP showcases the profound connections between chemistry and our daily lives.

In conclusion, (1-Hydroxy-1-Phosphono-Ethyl)Phosphonic acid is not merely a compound in a laboratory; it embodies the intersection of science, technology, and environmental sustainability. Its versatility across industries makes it a compound worth studying in detail.

Synonyms
Etidronic acid
2809-21-4
etidronate
1-Hydroxyethylidene-1,1-diphosphonic acid
HEDP
EHDP
Etidronsaeure
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-Hydroxyethane-1,1-diphosphonate
1-Hydroxyethanediphosphonic acid
(1-Hydroxyethane-1,1-diyl)diphosphonic acid
(1-Hydroxyethylidene)diphosphonic acid
1-Hydroxyethane-1,1-bisphosphonic acid
(Hydroxyethylidene)diphosphonic acid
Ethane-1-hydroxy-1,1-diphosphonic acid
(1-Hydroxyethylene)diphosphonic acid
Acidum etidronicum
1-HYDROXY-1,1-DIPHOSPHONOETHANE
Ethane-1-hydroxy-1,1-diphosphonate
(1-Hydroxyethylidene)bis(phosphonic acid)
Acide etidronique [INN-French]
Acido etidronico [INN-Spanish]
Acidum etidronicum [INN-Latin]
1,1,1-Ethanetriol diphosphonate
(1-Hydroxyethylidene)bisphosphonic acid
1-Hydroxyethylidene-1,1-bisphosphonate
Hydroxyethane-1,1-diphosphonic acid
(1-hydroxyethane-1,1-diyl)bis(phosphonic acid)
1000SL
(1-Hydroxyethylidene)diphoshonic acid
RP 61
HSDB 5898
Phosphonic acid, (1-hydroxyethylidene)di-
UNII-M2F465ROXU
(1-hydroxy-1-phosphonoethyl)phosphonic acid
EINECS 220-552-8
M2F465ROXU
MFCD00070585
NSC 227995
NSC-227995
BRN 1789291
OEDP
Phosphonic acid, 1-hydroxy-1,1-ethanediyl ester
CHEBI:4907
ethane-1-hydroxy-1,1-bisphosphonic acid
Etidronic Acid-d3
DTXSID6023028
M05BA01
(1-hydroxy-1-phosphono-ethyl)phosphonic acid
CHEMBL871
1-hydroxyethane 1,1-diphosphonic acid
(1-hydroxy-ethylidene)diphosphonic acid
DTXCID103028
2809-21-4 (freeacid)
EC 220-552-8
Etidronic Acid-d3 Sodium Salt
Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-
0-02-00-00171 (Beilstein Handbook Reference)
NSC227995
hydroxyethylidene-1,1-diphosphonic acid
(1-hydroxyethan-1,1-diyl)bis(phosphonic acid)
ETIDRONIC ACID (MART.)
ETIDRONIC ACID [MART.]
Etidronic acid [USAN:INN:BAN]
SMR000038750
1-Hydroxyethylidene-1,1-biphosphonate
C2H8O7P2
358730-93-5
1-Hydroxyethylidenediphosphonic acid
NCGC00159352-02
Etidronicacid
Etidronsaure
Etidronic acid (USAN/INN)
etidronic-acid
Diphosphonic Acid, Hydroxyethylidene
Ethane-1-hydroxy-1,1-bisphosphonate
Etidronic acid;HEDP
HDEPA
OEDFK
Etidronate (Didronel)
1-HydroxyEthylidene-1,1-DiphosphonicAcid
Prestwick0_000863
Prestwick1_000863
Prestwick2_000863
Prestwick3_000863
ETIDRONATE [VANDF]
(1-Hydroxy-1,1-ethanediyl)bis(phosphonic acid)
ETIDRONIC ACID [MI]
SCHEMBL18607
BSPBio_000905
ETIDRONIC ACID [INN]
MLS002207267
MLS002695948
ETIDRONIC ACID [HSDB]
ETIDRONIC ACID [USAN]
SPBio_002826
BPBio1_000997
GTPL7184
ETIDRONIC ACID [WHO-DD]
V10BX03
Etidronic acid monohydrate (HEDP)
HMS3604E03
HY-B0302
Tox21_200417
BBL028139
BDBM50115102
DL-390
s1857
STK721995
AKOS005524039
CCG-266618
DB01077
FH15419
s12329
NCGC00159352-04
NCGC00159352-05
NCGC00159352-06
NCGC00159352-14
NCGC00257971-01
1-hydroxyethane-1,1-diyldiphosphonic acid
CAS-2809-21-4
1,1-Ethylidenediphosphonic acid, 1-hydroxy-
H0587
NS00006820
(1-Hydroxy-1-phosphono-ethyl)-phosphonic acid
A23202
C07736
D02373
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-Hydroxyethylidene-1,1-diphosphonic acid - 60% aqueous solution,~4.2mol/L
220-552-8