JPH075445B2 - Plaster dissolving agent - Google Patents
Plaster dissolving agentInfo
- Publication number
- JPH075445B2 JPH075445B2 JP60124005A JP12400585A JPH075445B2 JP H075445 B2 JPH075445 B2 JP H075445B2 JP 60124005 A JP60124005 A JP 60124005A JP 12400585 A JP12400585 A JP 12400585A JP H075445 B2 JPH075445 B2 JP H075445B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- gypsum
- salt
- dissolving agent
- plaster
- 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 - Fee Related
Links
Landscapes
- Dental Preparations (AREA)
Description
【発明の詳細な説明】 この発明は石膏溶解剤にかかるものである。石膏溶解
は、歯科医療の分野においてとくに必要とされる作業で
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gypsum dissolving agent. Gypsum dissolution is a task particularly needed in the field of dentistry.
人工義歯の製作において石膏が多用されているところ、
該石膏が器具その他に付着し、再使用を妨げるのでその
除去をしなければならない。その方法としては、物理的
に除く方法と、化学的に除く方法とがあるが、化学反応
を利用した化学的除去方法が手間がかからないので好ま
しい。Where plaster is often used in the production of artificial dentures,
The gypsum must be removed as it adheres to equipment and the like and prevents reuse. As the method, there are a physical removal method and a chemical removal method, but a chemical removal method utilizing a chemical reaction is preferable because it does not take much labor.
従来、石膏を除去する化学的方法としてエチレンジアミ
ン四酢酸の三ナトリウム塩と酸性炭酸アルカリの混合水
溶液を使用する方法、エチレンジアミン四酢酸の二ナト
リウム塩、トリス、トリトンＸ−100、NaHCO3の水性媒
体溶液を使用する方法が知られている。更に、エチレン
ジアミン四酢酸と無水炭酸ナトリウム及び安息香酸ナト
リウムの水溶液を使用する方法も知られている。Conventionally, a method of using a mixed aqueous solution of ethylenediaminetetraacetic acid trisodium salt and acidic alkali carbonate as a chemical method for removing gypsum, an aqueous medium solution of ethylenediaminetetraacetic acid disodium salt, Tris, Triton X-100, and NaHCO 3. It is known how to use. Further, a method using an aqueous solution of ethylenediaminetetraacetic acid and anhydrous sodium carbonate and sodium benzoate is also known.
本発明者は、もっと効果的に石膏を除去できる組成物の
探索を行って研究をかさかさねた結果、本発明を完成し
た。即ち、本発明の石膏溶解剤は、エチレンジアミン四
酢酸の塩と重炭酸塩とを含む石膏溶解剤において、シク
ロヘキサンカルボン酸、シクロヘキサン−1,2−ジカル
ボン酸、ｏ−トルイル酸、ｎ−カプロン酸、又はこれら
の塩のうち少なくとも一種を必須成分として加えたもの
であって、極めて効果的に石膏を溶解できる組成物を提
供するものである。The present inventor has completed the present invention as a result of conducting research by searching for a composition capable of removing gypsum more effectively. That is, the gypsum dissolving agent of the present invention is a gypsum dissolving agent containing a salt of ethylenediaminetetraacetic acid and a bicarbonate, and cyclohexanecarboxylic acid, cyclohexane-1,2-dicarboxylic acid, o-toluic acid, n-caproic acid, Alternatively, it provides a composition in which at least one of these salts is added as an essential component and which can dissolve gypsum extremely effectively.
ここにおいて、エチレンジアミン四酢酸の塩としては、
ナトリウム塩、カリウム塩、アンモニウム塩、またはこ
れらの混合塩が挙げられ、重炭酸塩として、炭酸水素ナ
トリウム、炭酸水素カリウム、炭酸水素アンモニウムな
どがあげられ、シクロヘキサンカルボン酸、シクロヘキ
サン−1,2−ジカルボン酸、ｏ−トルイル酸、ｎ−カプ
ロン酸の塩を使用する場合における塩としては、ナトリ
ウム塩、カリウム塩、アンモニウム塩などがあげられ
る。Here, as the salt of ethylenediaminetetraacetic acid,
Sodium salt, potassium salt, ammonium salt, or a mixed salt thereof can be mentioned.As the bicarbonate salt, sodium hydrogen carbonate, potassium hydrogen carbonate, ammonium hydrogen carbonate, etc. can be mentioned, and cyclohexanecarboxylic acid, cyclohexane-1,2-dicarboxylic acid can be mentioned. When the salt of an acid, o-toluic acid or n-caproic acid is used, examples of the salt include sodium salt, potassium salt and ammonium salt.
本発明の石膏溶解剤は、使用時水溶液で使用されるもの
であるから、はじめから水溶液にして提供することもで
きるが、成分の混合物として提供することもできる。成
分の混合物として提供するとき、保存中、接触による成
分の分解が心配ならば、水溶性物質（例えば、PVA,ポリ
エチレングリコールなど）で、あらかじめ、成分を被覆
しておけばよい。本発明の石膏溶解剤は、かかる両者を
含むものである。Since the gypsum dissolving agent of the present invention is used as an aqueous solution at the time of use, it can be provided as an aqueous solution from the beginning, or it can be provided as a mixture of components. When provided as a mixture of components, if there is concern about decomposition of the components due to contact during storage, the components may be previously coated with a water-soluble substance (eg PVA, polyethylene glycol, etc.). The gypsum dissolving agent of the present invention includes both of them.
本発明の石膏溶解剤には、界面活性剤、着色剤、そのほ
か公知技術に明らかにされている化合物例えば、トリス
安息香酸などを加えることもできる。The gypsum-dissolving agent of the present invention may contain a surfactant, a colorant, and other compounds disclosed in the known art, such as trisbenzoic acid.
以下実施例を記述して本発明を更に詳述する。The present invention will be described in more detail with reference to the following examples.
実施例 １ （イ）水約60gにエチレンジアミン四酢酸16gを加え、こ
れに48％苛性ソーダ水溶液15,5gを加えかんはんして、
エチレンジアミン四酢酸のナトリウム塩水溶液を得た。
ついで、シクロヘキサン−1,2−ジカルボン酸1gをくわ
え、次いで、炭酸水素ナトリウム4.6gを加え溶解したの
ち水を加えて全量を100gとした。Example 1 (a) 16 g of ethylenediaminetetraacetic acid was added to about 60 g of water, and 15,5 g of 48% caustic soda solution was added and stirred.
An aqueous sodium salt solution of ethylenediaminetetraacetic acid was obtained.
Then, 1 g of cyclohexane-1,2-dicarboxylic acid was added, and then 4.6 g of sodium hydrogencarbonate was added and dissolved, and then water was added to bring the total amount to 100 g.
（ロ）焼石膏50gと35gとをよく混練し、型に流しこんで
成型し、0.5g重量の石膏片を作った。(B) 50 g and 35 g of calcined gypsum were well kneaded and cast into a mold to form 0.5 g gypsum pieces.
（ハ） （イ）で得た溶液50mlをビーカーにとり、
（ロ）で得た石膏片をこれにしずめ、石膏片が完全に溶
解するまでの時間を測定した。(C) Put 50 ml of the solution obtained in (A) in a beaker,
The gypsum piece obtained in (b) was dipped in this, and the time until the gypsum piece was completely dissolved was measured.
実施例 ２−７ 実施例１の（イ）において使用したシクロヘキサン−1,
2−ジカルボン酸を各種の酸に代えた以外は実施例１と
同様にして溶解時間を測定した。Example 2-7 Cyclohexane-1, used in (i) of Example 1,
The dissolution time was measured in the same manner as in Example 1 except that various acids were used instead of 2-dicarboxylic acid.
比較例 １−２ 実施例１の（イ）において使用したシクロヘキサン−1,
2−ジカルボン酸を代えた以外は実施例１と同様にして
溶解時間を測定した。Comparative Example 1-2 Cyclohexane-1, used in (a) of Example 1,
The dissolution time was measured in the same manner as in Example 1 except that 2-dicarboxylic acid was replaced.
比較例 ３ 実施例１の（イ）において使用した48％苛性ソーダ溶液
を使用せずシクロヘキサン−1,2−ジカルボン酸の代わ
りに安息香酸ナトリウム1.0g、炭酸水素ナトリウムの代
わりに無水炭酸ナトリウム11.2gを使用した以外は実施
例と同様にして溶解時間を測定した。Comparative Example 3 Without using the 48% caustic soda solution used in (a) of Example 1, 1.0 g of sodium benzoate was used instead of cyclohexane-1,2-dicarboxylic acid, and 11.2 g of anhydrous sodium carbonate was used instead of sodium hydrogen carbonate. The dissolution time was measured in the same manner as in the example except that it was used.
これらの結果を次にしめす。These results are shown below.
Claims (1)
を含む石膏溶解剤において、 シクロヘキサンカルボン酸、シクロヘキサン−1,2−ジ
カルボン酸、ｏ−トルイル酸、ｎ−カプロン酸、又はこ
れらの塩のうち少なくとも一種を必須成分として含むこ
とを特徴とする石膏溶解剤1. A gypsum-dissolving agent containing a salt of ethylenediaminetetraacetic acid and a bicarbonate, which comprises cyclohexanecarboxylic acid, cyclohexane-1,2-dicarboxylic acid, o-toluic acid, n-caproic acid, or a salt thereof. A gypsum dissolving agent containing at least one of these as an essential component
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60124005A JPH075445B2 (en) | 1985-06-06 | 1985-06-06 | Plaster dissolving agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60124005A JPH075445B2 (en) | 1985-06-06 | 1985-06-06 | Plaster dissolving agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61282305A JPS61282305A (en) | 1986-12-12 |
| JPH075445B2 true JPH075445B2 (en) | 1995-01-25 |
Family
ID=14874674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60124005A Expired - Fee Related JPH075445B2 (en) | 1985-06-06 | 1985-06-06 | Plaster dissolving agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075445B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100131460A (en) * | 2008-02-22 | 2010-12-15 | 글락소스미스클라인 엘엘씨 | Chemical Mechanical Polishing of Dentures |
| ES2475976T3 (en) * | 2008-09-10 | 2014-07-11 | Construction Research & Technology Gmbh | Use of cyclohexanopolycarboxylic acid derivatives for dust removal from construction chemicals |
-
1985
- 1985-06-06 JP JP60124005A patent/JPH075445B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61282305A (en) | 1986-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |