JPH0427171B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a process for producing substances with active action. The above-mentioned active substance obtained by the present invention has anticorrosive action, metal corrosion inhibiting action, salt damage removing action, soil damage removing action, and antiseptic action. The active substance obtained by the present invention is considered to be an iron hydrochloride having properties intermediate between divalent iron and trivalent iron, and ferric chloride is mixed with a large amount of caustic soda, potassium hydroxide, lithium hydroxide, and water. It is obtained when added to a strong alkali aqueous solution such as calcium oxide. . Specific examples of the method for producing the active substance of the present invention are shown below. 100ml of 1.0mg ferric chloride (FeCl ₃ 6H ₂ O)
Pour into 0.5N caustic soda aqueous solution and stir to dissolve, then leave to stand overnight. The resulting insoluble substances are separated, the liquid is neutralized with hydrochloric acid, concentrated under reduced pressure, and dried and crystallized in a desiccator. In this way, the active substance of the present invention supported on sodium chloride is obtained, but in order to separate the active substance of the present invention from the support, further steps are required.
Add 50 ml of isopropyl alcohol 80% aqueous solution to redissolve, concentrate under reduced pressure to remove the solvent, and dry. By repeating the above redissolution-concentration-drying operation several times, 0.25 mg of crystals is obtained. A 5% by weight aqueous solution of the obtained crystals was prepared, and the
0.01ml on paper chromatography paper No.51A
(2cm x 40cm) Spot 3cm inside from the bottom edge, n-butanol:acetic acid:water = 5:1:4
Upward development is performed at 20°C for 15 hours using the volume ratio mixture as a developing solvent. After development, the paper was dried and then a 1% by weight potassium ferricyanide aqueous solution was sprayed onto the paper as a coloring reagent to develop color, and it was confirmed that the crystal development position was 1 spot and Rf = 0.07. A similar paper chromatography test was then performed on a 1:1 equivalent mixture of ferrous chloride and ferric chloride, and the developed results were two spots: Rf = 0.095 (FeCl ₂ ) and Rf = 0.36 (FeCl _{3 )} . ) was confirmed. According to the paper chromatography test described above, the crystals exhibited properties intermediate between those of ferrous chloride and ferric chloride, and are presumed to be a single compound rather than a mixture. Next, dissolve 0.1g of the crystals in distilled water and add 100ml.
Prepare a testable solution. Transfer 2.5 ml of the flask to a 50 ml volumetric flask, add 2.5 ml of 0.1% by weight aqueous orthophenanthroline solution and 2.5 ml of sodium acetate-acetate buffer (PH4.5), and fill to the mark with distilled water. After standing at room temperature for 30 minutes, measure the absorbance at 510 nm. Determining the divalent iron of the testable solution from the standard curve obtained in the same manner for the ferrous chloride aqueous solution,
It was 0.019g/100ml. Next, in the above operation, when adding the valence test solution to the volumetric flask, 1.0 ml of a 10% by weight hydroxylamine hydrochloride aqueous solution is added in advance to reduce trivalent iron to divalent iron. The amount of divalent iron obtained in this case is
It was 0.038g/100ml. Therefore, the amount of trivalent iron is
0.038g/100ml−0.019g/100ml=0.019g/100ml, which suggests that the crystals contain equivalent amounts of divalent iron and trivalent iron. The active substances of the present invention include, for example, inorganic compounds such as sodium chloride, sodium sulfate, ammonium chloride, ammonium sulfate, diatomaceous earth, bentonite, silica, alumina, vitamins, hormones, proteins,
It may also be supported on organic compounds such as lipids, and the action of the active substance will not change even in that case. Examples of use of the present invention are shown below. Use example 1 (corrosion protection of metal) This use example shows the corrosion protection effect of the active substance according to the present invention. Corrosion of metals occurs due to the generation of corrosion current between the same type of metals or between different types of metals on the metal surface. Therefore, corrosion protection can be achieved by surface treating metals with a solution containing the active substance according to the present invention. After washing and drying a 0.2 cm x 5 cm x 5 cm iron piece with dilute hydrochloric acid and distilled water in advance, the active substance of the present invention (2.5 x 10 ^-5 /ml) and hydrofluoric acid (1.2 x 10 ^-4
g/ml) and glucose (10 ^-3 g/ml) and treated at 80°C for 30 minutes. When the treated iron piece was subjected to a corrosion test in an HCl air stream, the untreated iron piece already showed significant corrosion after one hour, but the treated iron piece showed no corrosion even after a 6-day corrosion test. Use Example 2 (Removal of salt damage) This paper example shows the action of the active substance of the present invention in removing salt damage. Electrolyte solutions, especially seawater, pose a great problem to ships and marine/coastal industries due to the metal ions they contain. By applying the active substances according to the invention these obstacles can be eliminated. When the active substance of the present invention was added to natural seawater at a concentration of 10 ^-12 g/ml, iron powder, manganese powder, and copper powder were added and left to stand, all chloride was removed from untreated seawater within one day. However, no change occurred in the treated seawater for over a year. Use Example 3 (Amending soil with continuous cropping problems) This use example shows the effect of the active substance of the present invention on improving soil with continuous cropping problems. If the same crop is continuously cultivated, depending on the crop, pathogenic bacteria may proliferate in the soil, making it almost impossible to harvest. The root cause is ionic reactions between inorganic and organic substances that accumulate in the soil. These obstacles can therefore be eliminated by the introduction of the active substances according to the invention. The active substance of the present invention containing NaCl as a carrier was diluted with water to a concentration of 10 ^-12 g/ml in soil with severe continuous cropping damage accompanied by the proliferation of Fusarium that occurred in a radish cultivation area (Gifu Prefecture). The liquid was applied to the soil to moisten it, and daikon radish was planted as usual. As a result, all the crops grown in the treated soil grew healthy and the yield in the control plot was
A yield index of 240 was obtained compared to 100. Use Example 4 (Preservative and anti-mold effect) This use example shows the preservative and anti-mold effect of the active substance of the present invention. The active substance of the present invention was synthesized using magnesium chloride as a carrier, and a solution with a magnesium chloride concentration of 10 ^-6 g/ml was prepared and used as a treatment solution. Heat the clams and mochi pieces in advance to 32℃ in an open system.
It was left standing for several days to allow microorganisms to grow. The resulting microorganisms were placed in a test tube containing 10 ml of the above treatment solution along with 0.5 g each of starch and peptone, and allowed to stand at 32°C for 5 days. 0.1 ml of the resulting suspension was added to 100 ml of water, and this liquid was irrigated over fresh clams and rice cakes, sealed and stored at room temperature. The control plots all showed rot and mold growth, but no microbial growth occurred for more than 3 weeks in the treated samples. Use Example 5 (Viral infection inhibiting effect) This use example shows the virus infection inhibiting effect of the active substance of the present invention. When a substance or factor that alters the biological system maintained by the active substance of the present invention invades from outside, the biological function deteriorates and appears as a so-called lesion. Viral infection disorders occur when the acid is brought in from the outside and destroys biological systems. Therefore, by effectively introducing the active substances of the present invention, infectious disorders can be eliminated. Tomato leaves are grown as host plants in advance.
After ingesting TMV (Tobacco Mosaic Virus) and growing it biologically, the juice was collected from the above tomato leaves immediately before the test, and the juice was diluted 500 times with water for testing.
It was made into a TMV suspension. An active substance solution was prepared by adding MgCl ₂ -6H ₂ O as a stabilizer to a 2.9×10 ⁻⁴ g/ml aqueous solution of the active substance of the present invention to a concentration of 1%. After about 1 month, carborundum was applied to the leaves of the cultivated tobacco plants, and half of the leaves of the tobacco plants were soaked with cotton soaked with a 2-fold dilution of the TMV suspension with the active substance solution as a test plot. Then, as a control area, a solution prepared by diluting the above TMV suspension twice with water was similarly applied to the other half of the same leaf. After the leaves dried after application (approximately 30 minutes later), the remaining carborundum was washed with water, and the plants were cultured in a culture chamber adjusted to 26°C. After 3 days of culture, leaves of test plot and control plot (N
Table 1 shows the results of determining the number of spots that appeared (=3) and the inhibition rate of the active substance solution. 【table】

Claims (1)

[Claims] 1. Step of dissolving FeCl ₃ in a large amount of strong alkali aqueous solution and leaving it for a predetermined time. Step 2. Step of leaving the solution still and removing the resulting insoluble substances. 2. Process of removing the insoluble substances from the solution. Step 3 of neutralizing with hydrochloric acid Step 4 of concentrating the neutralized solution to obtain crystals Step 5 of re-dissolving the crystals in an alcohol-water mixed solvent and concentrating the re-dissolved solution Step 5 of the above steps 1, Method for producing active substances consisting of 2, 3, 4, 5.