US705667A - Process of solidifying formaldehyde. - Google Patents
Process of solidifying formaldehyde. Download PDFInfo
- Publication number
- US705667A US705667A US7535801A US1901075358A US705667A US 705667 A US705667 A US 705667A US 7535801 A US7535801 A US 7535801A US 1901075358 A US1901075358 A US 1901075358A US 705667 A US705667 A US 705667A
- Authority
- US
- United States
- Prior art keywords
- formaldehyde
- solution
- sodium
- soap
- solidifying
- 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 - Lifetime
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title description 69
- 238000000034 method Methods 0.000 title description 4
- 229960004279 formaldehyde Drugs 0.000 description 21
- 235000019256 formaldehyde Nutrition 0.000 description 21
- 239000000243 solution Substances 0.000 description 18
- 239000000344 soap Substances 0.000 description 14
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 11
- 229910052708 sodium Inorganic materials 0.000 description 11
- 239000011734 sodium Substances 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000008098 formaldehyde solution Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229960004274 stearic acid Drugs 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000003826 tablet Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000837181 Andina Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- MGJURKDLIJVDEO-UHFFFAOYSA-N formaldehyde;hydrate Chemical compound O.O=C MGJURKDLIJVDEO-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007937 lozenge Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
Definitions
- Formaldehyde is extensively used for disinfecting and other technical purposes, both in its original gaseous state andina forty-percent. solution. Pure formaldehyde has been solidified by converting it into its polymeric modification; but it has been impossible heretofore to solidify the aqueous solution in which the formaldehyde is contained as such in its monomolecular and not in its polymerized state. It is well known that in its polymerized modification formaldehyde has lost its antiseptic properties, which it only recovers when heated to a temperature of one hundred and fifty degrees (150) centigrade.
- the solidified solution of formaldehyde offers various advantages as compared with the forty-percent. solution as ordinarily employed, inas much as it is easily administered-for instance, in the form of tablets, lozenges, and the like, and in that shape it is very easy of application.
- Formaldehyde has the property of liquefying rather considerable quantities of potassium soap, while, on the other hand, when treated with sodium soaps the formaldehyde, as I have found, will solidify.
- the necessary amount of ordinary and preferably dried neutral or acid sodium soap is dissolved in the corresponding amount of an aqueous solution of formaldehyde with the aid of a reflux condenser. When cool,the mass solidifies.
- .stearic-acid soap is to be used for effecting the solidification of formaldehyde
- I employ molten stearic acid free from lime, to which I add as much concentrated solution of sodium hydrate or dry carbonate of soda as is necessary for saponification.
- the necessary amount of formaldehyde solution is added to the mass.
- I may also modify the process ,for efiec-ting the solidification of solutions of formaldehyde, so as to add anhydrous formaldehyde to a solution of sodium soap in the required amount of water, or I may add solution of sodium hydrate or dry caustic soda or sodium carbonate and the necessary amount of fatty acids for neutralization of the alkali to the solution of formaldehyde.
- the amount of soap added is governed by the hardness it is desired to impart to the solution of formaldehyde.
- This solidified solution of formaldehyde may assume any desired shape. It may be made into tablets,
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Detergent Compositions (AREA)
Description
,UNITED STATES PATENT ()Frrcn.
ROBERT GROPPLER, BERLIN, GERMANY.
PROCESS OF SOLlDlFYlNG FOR-MALDEHYDE.
SPECIFICATION forming part of Letters Patent No. 705,667, dated July 29, 1902.
Application filed August 9,1901. Serial No. 75,358. (No specimens.)
To all" whom it may concern:
Be it known that I, ROBERT GROPPLER, doctor of philosophy, a subject of the German Emperor, residing at 7Motzstrasse, in the city of Berlin, Kingdom of Prussia, and German Empire, have invented a certain newand useful Process of Solidifying Formaldehyde, of which the following is a specification.
Formaldehyde is extensively used for disinfecting and other technical purposes, both in its original gaseous state andina forty-percent. solution. Pure formaldehyde has been solidified by converting it into its polymeric modification; but it has been impossible heretofore to solidify the aqueous solution in which the formaldehyde is contained as such in its monomolecular and not in its polymerized state. It is well known that in its polymerized modification formaldehyde has lost its antiseptic properties, which it only recovers when heated to a temperature of one hundred and fifty degrees (150) centigrade. The solidified solution of formaldehyde offers various advantages as compared with the forty-percent. solution as ordinarily employed, inas much as it is easily administered-for instance, in the form of tablets, lozenges, and the like, and in that shape it is very easy of application.
Formaldehyde has the property of liquefying rather considerable quantities of potassium soap, while, on the other hand, when treated with sodium soaps the formaldehyde, as I have found, will solidify. I am aware that very small quantities of a solution of formaldehyde have already been combined with very large quantities of sodium soap for the treatment of diseases of the skin-for instance, Where a preparation consisting of a sodium soap with an addition of five per cent. (5%) of a solution of formaldehydeis employed; but this is entirely different from my invention, inasmuch as in this preparation only small quantities of formaldehyde are used and a solidifying action of the constituents is not produced. In my invention, on the contrary, very large quantities of a solution of formaldehyde are treated with small quantities of sodium soap and are thereby converted into the solid state. Very small quantities of sodium soap are already sufficient for solidifying a solution of formaldehyde. Ordinary sodium soap-cocoanut-oil sodium soap, for instance-on being treated with three parts of water yields a frothy liquid and, at best, jelly-like mass. By substituting, however, three parts of a thirty-five to forty per cent. solution of formaldehyde for the water formaldehyde yields a solid plastic mass. Still better results are obtained if perfectly dry sodium soap is used. I have found sodium stearate to be especially useful in of fecting the solidification of formaldehyde solution. Thus two parts of sodium stearate will, for instance, suffice for solidifying one hundred parts of a forty-per-cent. solution of formaldehyde.
For carrying out my invention the necessary amount of ordinary and preferably dried neutral or acid sodium soap, the quantity of which corresponds to the degree of firmness it is desired to produce, is dissolved in the corresponding amount of an aqueous solution of formaldehyde with the aid of a reflux condenser. When cool,the mass solidifies. If
.stearic-acid soap is to be used for effecting the solidification of formaldehyde, I employ molten stearic acid free from lime, to which I add as much concentrated solution of sodium hydrate or dry carbonate of soda as is necessary for saponification. After the constituents have been combined the necessary amount of formaldehyde solution is added to the mass. I may also modify the process ,for efiec-ting the solidification of solutions of formaldehyde, so as to add anhydrous formaldehyde to a solution of sodium soap in the required amount of water, or I may add solution of sodium hydrate or dry caustic soda or sodium carbonate and the necessary amount of fatty acids for neutralization of the alkali to the solution of formaldehyde. In all these cases the amount of soap added is governed by the hardness it is desired to impart to the solution of formaldehyde. This solidified solution of formaldehyde may assume any desired shape. It may be made into tablets,
rods, bougies, and the like, and odorous or disinfecting principles may also be incorporated With this new preparation.
It for some-purposes it is desired to reduce the consistence and soften the solidified solution of formaldehyde as produced according to my invention, this is best effected by add fied solutions of formaldehyde which consists with an aqueous solution of formaldehyde and dissolving the soap in the formaldehyde solution with the application of a gentle heat.
In witness whereof I have hereunto signed I 5 my name, this 28th day of July, 1901, in the presence of two subscribing witnesses.
ROBERT GROPPLER.
Witnesses PAUL HORLITZ,
in mixing small quantities of sodium soap ARTHUR QUOSIGK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7535801A US705667A (en) | 1901-08-09 | 1901-08-09 | Process of solidifying formaldehyde. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7535801A US705667A (en) | 1901-08-09 | 1901-08-09 | Process of solidifying formaldehyde. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US705667A true US705667A (en) | 1902-07-29 |
Family
ID=2774198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US7535801A Expired - Lifetime US705667A (en) | 1901-08-09 | 1901-08-09 | Process of solidifying formaldehyde. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US705667A (en) |
-
1901
- 1901-08-09 US US7535801A patent/US705667A/en not_active Expired - Lifetime
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