JP2019038962A - Urine stone remover - Google Patents

Abstract

The present invention provides a urolith remover that dissolves uroliths, has high urolith solubility, and also has good rust-prevention properties for iron pipes. The present invention relates to a urolith remover comprising an organic acid, iron phosphate and phosphoric acid. The organic acid is preferably at least one selected from the group consisting of formic acid, sulfamic acid, aminesulfonic acid and acetic acid. The uric acid remover preferably contains an organic acid in an amount of 5% by mass or more and 25% by mass or less. It is preferable that the urinary stone removing agent contains 0.01% by mass or more and 1% by mass or less of iron phosphate. It is preferable that the urinary stone removing agent contains 0.05% by mass or more and 10% by mass or less of phosphoric acid. [Selection diagram] None

Description

  The present invention relates to a urine stone removing agent that can dissolve and remove urine stones in flush toilets.

  In flush toilets, in order to prevent the reverse flow of odors from storage tanks and the like, it is designed to collect water in pipes and toilets. Calcium ions and magnesium ions contained in the water are combined with carbon dioxide in the air to form hardly soluble calcium carbonate and magnesium carbonate. This calcium carbonate or magnesium carbonate gradually deposits and accumulates in the reservoir of the toilet bowl or piping. Furthermore, various germs floating together with dust in the air take in the nutrients of human urine and feces and grow by using the deposits such as calcium carbonate as a house. Miscellaneous bacteria use calcium ions to form strong porous cement-like uroliths. When urine stones adhere and expand, it becomes a source of foul odors and disturbs the flow of sewage, causing toilet trouble.

  In order to dissolve and remove such urine stones, acids (especially hydrochloric acid) have been used for a long time, but there is a problem that they are highly corrosive. Therefore, Patent Document 1 proposes a sanitary appliance cleaning agent containing an acid, a phosphate, and an anionic surfactant as a sanitary appliance cleaning agent having a high ability to remove dirt such as urine stones and low corrosivity. ing. In Patent Document 2, a deodorant having a good deodorizing effect, a high ability to remove dirt such as urine stones, and a small corrosive agent, a small amount of an activator (reducing agent) is added to the metal iron salt. A deodorant that generates active iron ions and is blended with sulfamic acid and sodium tripolyphosphate has been proposed.

Chinese Patent Application Publication No. 1032358 Chinese Patent Application Publication No. 1086503

  However, Patent Document 1 and Cited Document 2 do not specifically examine urine stone solubility for dissolving urine and rust prevention for iron pipes, and improvement is required for urine stone solubility and rust prevention. It was done.

  In order to solve the above-mentioned problems, the present invention provides a urine stone removing agent that has high urine stone solubility for dissolving urine stones and also has good rust prevention properties for iron pipes.

  The present invention relates to a urolith removal agent characterized by containing an organic acid, iron phosphate and phosphoric acid.

  The organic acid is preferably at least one selected from the group consisting of formic acid, sulfamyl acid, amine sulfonic acid and acetic acid.

  The urolith remover preferably contains 5% by mass or more and 25% by mass or less of an organic acid. It is preferable that the urolith remover contains 0.01 to 1% by mass of iron phosphate. The urolith remover preferably contains 0.05% by mass or more and 10% by mass or less of phosphoric acid.

  The present invention provides a urinary stone remover that has high urine stone solubility for dissolving urine stones and also has good rust prevention properties for iron pipes by using a combination of organic acid, iron phosphate and phosphoric acid. can do.

  The inventors diligently studied to improve the urine stone solubility for dissolving the urine stone of the urolith remover and the rust prevention property for the iron pipe. As a result, it has been found that by using a combination of organic acid, iron phosphate, and phosphoric acid, the solubility of urine that dissolves urine is increased and the rust prevention property for iron pipes is also improved. Urine stone can be dissolved and removed by using an organic acid. In addition, by using iron phosphate and phosphoric acid together, a strong film of iron phosphate insoluble in water is formed on the surface of the iron pipe and becomes passive. Occurrence and corrosion are prevented. Organic acids are easily oxidized by microorganisms and decomposed into carbon dioxide and water. As a result, the urolith remover is also a product with improved environmental safety.

  The organic acid is not particularly limited, but is preferably a relatively strong acid type organic acid from the viewpoint of further enhancing the effect of removing urolith. The strong acid type organic acid is not particularly limited, and examples thereof include formic acid, sulfamic acid, amine sulfonic acid, and acetic acid. One of the organic acids may be used alone, or two or more may be used in combination.

  The urine stone removing agent is not particularly limited, but preferably contains 5% by mass or more and 25% by mass or less of an organic acid from the viewpoint of enhancing the rust prevention property for iron pipes while enhancing the effect of removing urinary stones. 7 mass% or more and 20 mass% or less is more preferable, and 8 mass% or more and 15 mass% or less is further more preferable.

  The iron phosphate may be either iron (II) phosphate (also referred to as ferrous phosphate) or iron (III) phosphate (also referred to as ferric phosphate). May be. It is preferable that iron phosphate (II) is contained from a viewpoint of improving the rust prevention property with respect to iron piping, and from a viewpoint of stability in a solution. The content of iron phosphate (II) in the iron phosphate is preferably 20% by mass or more and 60% by mass or less.

  The urine stone removing agent is not particularly limited, but from the viewpoint of enhancing rust prevention for iron pipes, iron phosphate is preferably contained in an amount of 0.01% by mass or more and 1% by mass or less, and 0.1% by mass or more and 0% or less. More preferably, it is contained in an amount of .9 mass% or less, and more preferably in an amount of 0.2 mass% or more and 0.8 mass% or less.

  The urine stone removing agent is not particularly limited, but contains 0.05% by mass or more and 10% by mass or less of phosphoric acid from the viewpoint of improving the effect of removing urinary stone while improving the rust prevention property for iron pipes. Is preferable, 0.1 to 8% by mass is more preferably included, 0.15 to 5% by mass is further preferable, and 0.2 to 2% by mass is further included. preferable.

  In the urolith remover, although not particularly limited, from the viewpoint of enhancing rust prevention for iron pipes, phosphoric acid is preferably 10 parts by mass or more and 500 parts by mass or less with respect to 100 parts by mass of iron phosphate. It is more preferably 20 parts by mass or more and 100 parts by mass or less, and further preferably 30 parts by mass or more and 80 parts by mass or less.

  The urine stone removing agent may contain other phosphates than iron phosphate, if necessary, within a range not inhibiting the effects of the present invention. The other phosphate is not particularly limited, and examples thereof include orthophosphate (sodium salt, potassium salt, iron salt, etc.), condensed phosphate (sodium salt, potassium salt, etc.), phosphate ester and the like. It is done. For example, the urolith removing agent may contain 5% by mass or less of other phosphates.

  The urine stone removing agent may contain a surfactant, if necessary, within a range that does not impair the effects of the present invention. The surfactant may be an ionic surfactant or a nonionic surfactant. The ionic surfactant includes an anionic surfactant, a cationic surfactant, and an amphoteric surfactant. For example, the urolith remover may contain 5% by mass or less of a surfactant.

  The urine stone removing agent contains water, organic acid, iron phosphate and phosphoric acid, has high urine stone solubility for dissolving urine stones, and has good anti-rust properties for iron pipes. It can be suitably used as a cleaning agent such as a urine stone removing agent for an iron flush toilet.

  Hereinafter, the present invention will be described more specifically with reference to examples. In addition, this invention is not limited to the following Example.

Example 1
Formic acid, phosphoric acid, iron (II) phosphate and water were mixed at the blending ratios shown in Table 1 below to prepare a uric stone removing agent.

(Example 2)
Further, a urolith remover having a blending ratio shown in Table 1 below was prepared in the same manner as in Example 1 except that sodium pyrophosphate was added.

(Comparative Example 1)
Hydrochloric acid, sodium pyrophosphate and water were mixed at the blending ratios shown in Table 1 below to prepare a urolith remover.

(Comparative Example 2)
Phosphoric acid, sodium tripolyphosphate, and water were mixed at a blending ratio shown in Table 1 below to prepare a urolith remover.

(Comparative Example 3)
Formic acid, phosphoric acid, sodium tripolyphosphate and water were mixed at the blending ratios shown in Table 1 below to prepare a urolith remover.

(Comparative Example 4)
Formic acid, phosphoric acid, sodium pyrophosphate and water were mixed at the blending ratios shown in Table 1 below to prepare a urolith remover.

(Comparative Example 5)
Phosphoric acid, iron (II) phosphate and water were mixed at the blending ratio shown in Table 1 below to prepare a uric stone removing agent.

(Comparative Example 6)
Formic acid, iron (II) phosphate, sodium tripolyphosphate and water were mixed at the blending ratios shown in Table 1 below to prepare a urine stone removing agent.

  The urine stone solubility and antirust property of the urine stone removing agents of Examples 1 and 2 and Comparative Examples 1 to 6 were evaluated as follows, and the results are shown in Table 1 below.

(Urine stone solubility)
Urine stone solubility was confirmed using clam shells instead of urolith.
5: The shell was completely dissolved 4: Most of the shell was dissolved 3: The shell was more than half dissolved 2: About 1/3 of the shell was dissolved 1: Almost undissolved 0: Not dissolved at all

(Rust prevention)
After immersing the iron nail in the urine stone remover for 12 hours, it was washed thoroughly with water, and the state of corrosion after being placed in a room in contact with air for 2 days was observed.
5: Rust did not occur at all 4: Rust hardly occurred 3: Rust generated a little 2: Rust a little occurred 1: About half of the rust occurred 0: Rust occurred throughout

  As can be seen from the results in Table 1 above, the urolith remover of Examples 1 and 2 containing organic acid, iron phosphate and phosphoric acid had good urolith solubility and high antirust properties. On the other hand, the urine stone removing agent of Comparative Example 1 containing neither organic acid, iron phosphate nor phosphoric acid and containing hydrochloric acid and sodium pyrophosphate has excellent urine stone solubility, but is extremely rustproof. It was bad. Although the urolith remover of Comparative Example 2 containing phosphoric acid and sodium tripolyphosphate has good urolith solubility and rust prevention properties, black powder is generated, and piping is used when the remover is used repeatedly. There is a possibility that it will settle in the reservoir of the water, which is inferior in safety. Although the urine stone remover of Comparative Example 3 and Comparative Example 4 which does not contain iron phosphate and contains organic acid, phosphoric acid and sodium tripolyphosphate or sodium pyrophosphate has good urine stone solubility, It was inferior. The urolith remover of Comparative Example 5 containing no organic acid and containing phosphoric acid, iron (II) phosphate and sodium tripolyphosphate was inferior in both urolith solubility and rust prevention properties. Although the urolith remover of Comparative Example 6 containing an organic acid, iron (II) phosphate and sodium tripolyphosphate had good urolith solubility, the rust prevention property was inferior.

Claims (5)

  A urolith remover comprising an organic acid, iron phosphate and phosphoric acid.   The urolith remover according to claim 1, wherein the organic acid is one or more selected from the group consisting of formic acid, sulfamyl acid, amine sulfonic acid and acetic acid.   The urolith removing agent according to claim 1 or 2, wherein the urolith removing agent contains 5% by mass or more and 25% by mass or less of an organic acid.   The urolith removal agent according to any one of claims 1 to 3, wherein the urolith removal agent contains 0.01 mass% to 1 mass% of iron phosphate.   The urolith remover according to any one of claims 1 to 4, wherein the urolith remover contains 0.05% by mass or more and 10% by mass or less of phosphoric acid.