6145-31-9 Usage
Description
1,2-Ethylenediphosphonic Acid, also known as HEDP, is an organic compound with the chemical formula C2H8O6P2. It is a white crystalline solid that is soluble in water. HEDP is known for its ability to form stable complexes with metal ions, particularly calcium and magnesium, which makes it useful in various applications.
Uses
Used in Metal Surface Treatment Industry:
1,2-Ethylenediphosphonic Acid is used as a neutral rust remover for metal surface treatment. It effectively removes rust and other metal oxides from surfaces without causing further corrosion or damage to the metal. This property makes it a valuable component in the formulation of rust removal solutions and cleaners for various metalworking and industrial applications.
In addition to its use as a rust remover, 1,2-Ethylenediphosphonic Acid also has other applications in various industries, such as:
Used in Water Treatment Industry:
HEDP is used as a scale inhibitor in the water treatment industry. It helps prevent the formation of calcium and magnesium carbonate scales in boilers, cooling systems, and other industrial processes that involve water circulation. By inhibiting scale formation, HEDP contributes to improved efficiency and reduced maintenance costs in these systems.
Used in Agriculture:
In agriculture, 1,2-Ethylenediphosphonic Acid is used as a chelating agent to improve the availability of micronutrients to plants. It forms stable complexes with metal ions, making them more accessible for plant uptake and reducing the risk of nutrient deficiencies.
Used in Personal Care Products:
HEDP is also used in the formulation of personal care products, such as shampoos and conditioners, where it acts as a chelating agent to help stabilize and preserve the product's active ingredients.
Check Digit Verification of cas no
The CAS Registry Mumber 6145-31-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,1,4 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6145-31:
(6*6)+(5*1)+(4*4)+(3*5)+(2*3)+(1*1)=79
79 % 10 = 9
So 6145-31-9 is a valid CAS Registry Number.
InChI:InChI=1/C2H6O6P2/c3-9(4,5)1-2-10(6,7)8/h1-2H,(H2,3,4,5)(H2,6,7,8)/b2-1+
6145-31-9Relevant articles and documents
Ethane-1,2-diphosphonic acid as a building block in supramolecular chemistry; a pillared-layer framework and framework-encapsulated cations
Wheatley, Paul S.,Lough, Alan J.,Ferguson, George,Burchell, Colin J.,Glidewell, Christopher
, p. 95 - 102 (2001)
The 1:1 adduct of piperazine and ethane-1,2-diphosphonic acid is a salt [C4H12N2]2+ ·[C2H6O6P2]2-, in which both ions lie across centres of inversion in space group P21/c. The anions are linked by a single type of O - H...O hydrogen bond [O...O, 2.562 (3) A; H...O, 1.73 A, O - H...O, 169°] into (6, 3) nets built from a single type of R44(22) ring. The cations lie between these nets, linked to them by two types of N - H...O hydrogen bond [N...O, 2.635 (3) and 2.735 (3) A; H...O 1.72 and 1.82 A. N - H...O, 175 and 177°] such that the cations link adjacent sheets, thus forming a pillared-layer framework. The aquated adduct formed between trimethylenedipiperidine and ethane-1,2-diphosphonic acid is also a salt [C13H28N2]2+·[C 2H6O6P2] 2-·2.8[H2O], in which there are 12 different types of hydrogen bond, eight O - H...O and four N - H...O. The anions are linked into chains by pairs of O -H...O hydrogen bonds and these chains are linked by the water molecules into a continuous three-dimensional framework. Within the anion/water framework are large voids which contain pairs of cations, linked to the framework by N - H...O hydrogen bonds.
Process for preparing ethylenediphosphonic acids
-
, (2008/06/13)
The invention relates to a process for preparing ethylenediphosphonic acids of the formula I, 1where R1 and R2 may be identical or different and are hydrogen, a carboxy group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having from 1 to 10 carbon atoms, phenyl, benzyl, or alkyl-substituted aromatic systems, which comprises reacting phosphorous acid (H3PO3) directly with alkynes.
