ES471259A1 - Procedure for the obtaining of 1-hydroxy-1,1-ethylidendifosphonic acid and its disodium salt. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the obtaining of 1-hydroxy-1,1-ethylidendifosphonic acid and its disodium salt. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES471259A1 ES471259A1 ES471259A ES471259A ES471259A1 ES 471259 A1 ES471259 A1 ES 471259A1 ES 471259 A ES471259 A ES 471259A ES 471259 A ES471259 A ES 471259A ES 471259 A1 ES471259 A1 ES 471259A1
- Authority
- ES
- Spain
- Prior art keywords
- acid
- disodium salt
- translation
- hydroxy
- obtaining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 title abstract 3
- 239000002253 acid Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 230000009466 transformation Effects 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Abstract
Process for obtaining 1-hydroxy-1,1-ethylidenediphosphonic acid and its disodium salt, by transformation of phosphorus trichloride with acetic acid, characterized by the reaction of phosphorus trichloride with more than 3 moles, preferably with more than 4 moles and in particular with a 6-fold molar excess of acetic acid, until complete separation of the hydrogen chloride; by addition of water and complete separation of the acetic acid still present in the reaction mixture and, where appropriate, transformation of the residual pure acid by adding the necessary amount of aqueous sodium hydroxide solution in the disodium salt. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES471259A ES471259A1 (en) | 1978-06-29 | 1978-06-29 | Procedure for the obtaining of 1-hydroxy-1,1-ethylidendifosphonic acid and its disodium salt. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES471259A ES471259A1 (en) | 1978-06-29 | 1978-06-29 | Procedure for the obtaining of 1-hydroxy-1,1-ethylidendifosphonic acid and its disodium salt. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES471259A1 true ES471259A1 (en) | 1979-01-16 |
Family
ID=8476397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES471259A Expired ES471259A1 (en) | 1978-06-29 | 1978-06-29 | Procedure for the obtaining of 1-hydroxy-1,1-ethylidendifosphonic acid and its disodium salt. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES471259A1 (en) |
-
1978
- 1978-06-29 ES ES471259A patent/ES471259A1/en not_active Expired
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