JPS5812261B2 - Stable methyl chloroform composition - Google Patents
Stable methyl chloroform compositionInfo
- Publication number
- JPS5812261B2 JPS5812261B2 JP17312480A JP17312480A JPS5812261B2 JP S5812261 B2 JPS5812261 B2 JP S5812261B2 JP 17312480 A JP17312480 A JP 17312480A JP 17312480 A JP17312480 A JP 17312480A JP S5812261 B2 JPS5812261 B2 JP S5812261B2
- Authority
- JP
- Japan
- Prior art keywords
- methyl chloroform
- composition
- present
- stable methyl
- fatty acids
- 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
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 title claims description 16
- 239000000203 mixture Substances 0.000 title claims description 13
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 9
- 239000000194 fatty acid Substances 0.000 claims description 9
- 229930195729 fatty acid Natural products 0.000 claims description 9
- 150000004665 fatty acids Chemical class 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000003381 stabilizer Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005238 degreasing Methods 0.000 description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000013112 stability test Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- MSXVEPNJUHWQHW-UHFFFAOYSA-N 2-methylbutan-2-ol Chemical compound CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005108 dry cleaning Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 description 1
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 1
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- JSZOAYXJRCEYSX-UHFFFAOYSA-N 1-nitropropane Chemical compound CCC[N+]([O-])=O JSZOAYXJRCEYSX-UHFFFAOYSA-N 0.000 description 1
- JHUUPUMBZGWODW-UHFFFAOYSA-N 3,6-dihydro-1,2-dioxine Chemical compound C1OOCC=C1 JHUUPUMBZGWODW-UHFFFAOYSA-N 0.000 description 1
- JQZGUQIEPRIDMR-UHFFFAOYSA-N 3-methylbut-1-yn-1-ol Chemical compound CC(C)C#CO JQZGUQIEPRIDMR-UHFFFAOYSA-N 0.000 description 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- MCSAJNNLRCFZED-UHFFFAOYSA-N nitroethane Chemical compound CC[N+]([O-])=O MCSAJNNLRCFZED-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】
本発明は安定化したメチルクロロホルム組成物に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to stabilized methylchloroform compositions.
メチルクロロホルムは油やグリース等に対する溶解力が
大きく、不燃性であり、かつトリクロルエチレンやパー
クロルエチレン等の溶剤に比較して毒性が少ない等の特
徴を持ち、特に金属の脱脂洗浄用、繊維の処理用、塗料
・接着剤用の溶剤として広く使用されている。Methyl chloroform has a high dissolving power for oils and greases, is nonflammable, and is less toxic than solvents such as trichlorethylene and perchlorethylene. It is particularly useful for degreasing metals and cleaning textiles. Widely used as a solvent for processing and paints and adhesives.
しかしながら、メチルクロロホルムは比較的不安定で金
属、特にアルミニウムが存在すると分解が著しく促進さ
れる。However, methylchloroform is relatively unstable and decomposition is significantly accelerated in the presence of metals, particularly aluminum.
この分解反応は一度始まると連鎖反応的に塩化水素を発
生しながら進行し、液は着色しながら最後にはタール状
物質、黒色炭化物と化してしまう。Once this decomposition reaction starts, it proceeds as a chain reaction while generating hydrogen chloride, and the liquid becomes colored and eventually turns into a tar-like substance and black char.
この分解を抑制し、かつ金属の腐蝕を防止するためにメ
チルクロロホルムの安定化は必須の要件であり、従来か
ら数多くの安定剤、たとえば、環状エーテル類、アルコ
ール類、ニトリル類、エポキサイド類等を単独または数
種組み合わせて添加することが多く提案されており枚挙
に暇がない。In order to suppress this decomposition and prevent metal corrosion, stabilization of methyl chloroform is an essential requirement, and many stabilizers such as cyclic ethers, alcohols, nitriles, epoxides, etc. There are many proposals for adding them singly or in combination, and there is too much time to list them.
しかしながら、従来より提案されている安定剤では、メ
チルクロロホルムを安定化するには未だ不十分なところ
がある。However, the stabilizers proposed so far are still insufficient to stabilize methyl chloroform.
たとえば、アルミニウムに対して安定であっても、工業
材料として一般に広く使用されている他の金属に対して
は必ずしも十分でなく、特に使用中に水分が混入するよ
うな場合に鉄、亜鉛等の金属部品、洗浄装置、容器類を
腐蝕することがしばしば起る。For example, even if it is stable against aluminum, it is not necessarily stable against other metals that are generally widely used as industrial materials, especially when moisture gets mixed in during use. Corrosion of metal parts, cleaning equipment, and containers often occurs.
本発明者等はこのような欠点を改善し、鉄や亜鉛に対し
て特に安定性のすぐれたメチルクロロホルム組成物につ
いて種々検討を重ねた結果、遂に本発明に到達すること
ができた。The inventors of the present invention have improved these drawbacks and have conducted various studies on a methyl chloroform composition that is particularly stable against iron and zinc, and as a result, they have finally arrived at the present invention.
すなわち、本発明において提案される安定化組成物は炭
素数５以上の脂肪酸を含むことを特徴とするメチルクロ
ロホルム組成物である。That is, the stabilized composition proposed in the present invention is a methylchloroform composition characterized by containing a fatty acid having 5 or more carbon atoms.
本発明で用いる脂肪酸は炭素数が５より少ないときは効
果が認められず、ある程度鎖長の長いものでなげればな
らない。When the fatty acid used in the present invention has less than 5 carbon atoms, no effect is observed, and the chain length must be long to some extent.
炭素数が１６〜２２の高級脂肪酸も有効であるが、特に
好ましい脂肪酸は炭素数が６〜１０の直鎖飽和脂肪酸で
あり、これらの脂肪酸を含むメチルクロロホルム組成物
は液中ばもちろんのこと、その蒸気相においても鉄を防
蝕する効果が大きい。Although higher fatty acids having 16 to 22 carbon atoms are also effective, particularly preferred fatty acids are linear saturated fatty acids having 6 to 10 carbon atoms, and methyl chloroform compositions containing these fatty acids can be used not only in liquids, but also in liquids. Even in its vapor phase, it is highly effective in preventing corrosion of iron.
また、これらの脂肪酸は従来の公知の安定剤と異なって
水に難溶であるため、それらを含む組成物が多量の水と
接触しても水に抽出されて失われることが少ない利点を
有する。Furthermore, unlike conventionally known stabilizers, these fatty acids are sparingly soluble in water, so even if a composition containing them comes into contact with a large amount of water, they have the advantage of being less likely to be extracted into water and lost. .
本発明で使用される脂肪酸の添加割合は組成物の用途、
使用条件によって定められ、特に制限はないが、通常は
メチルクロロホルムに対し０．００１重量％以上である
。The addition ratio of fatty acids used in the present invention depends on the use of the composition,
It is determined by the conditions of use and is not particularly limited, but it is usually 0.001% by weight or more based on methyl chloroform.
０．００１重量％より少ない時は効果が明瞭でなくなる
場合があるが、本発明の組成物が金属の脱脂洗浄液や衣
類のドライクリーニング液として用いられる時は脂肪酸
の添加割合は２重量％以下で十分であろう。When the amount is less than 0.001% by weight, the effect may not be clear, but when the composition of the present invention is used as a metal degreasing cleaning solution or a clothing dry cleaning solution, the proportion of fatty acids added should be 2% by weight or less. That should be enough.
また、本発明で提案する安定剤の他に公知の安定剤を併
用することは可能であり、たとえば金属脱脂洗浄等でメ
チルクロロホルムの総合的な実用性能を全て具備しよう
とする時には、通常１・４−ジオキサン、ジオキソラン
、トリオキサン、メチルブチノール、ｔｅｒｔ−ブタノ
ール、ｉｓｏ−ブタノール、ｔｅｒｔ−アミルアルコー
ル、ニトロメタン、ニトロエタン、ニトロプロパン、１
・２ −ブチレンオキシド、グリシドール等から選ばれ
る安定剤と共に用いられる。In addition, it is possible to use known stabilizers in addition to the stabilizer proposed in the present invention. For example, when trying to provide all the comprehensive practical performance of methyl chloroform in metal degreasing and cleaning, it is usually necessary to use 1. 4-dioxane, dioxolane, trioxane, methylbutynol, tert-butanol, iso-butanol, tert-amyl alcohol, nitromethane, nitroethane, nitropropane, 1
-Used with a stabilizer selected from 2-butylene oxide, glycidol, etc.
以下、本発明の効果を実施例および比較例によって具体
的に説明する。Hereinafter, the effects of the present invention will be specifically explained using Examples and Comparative Examples.
以下の実施例および比較例の表中に示す安定剤の添加量
はメチルクロロホルムの重量を基準としたものであり、
金属試験片および安定性試験法は下記の通りである。The amount of stabilizer added in the tables of Examples and Comparative Examples below is based on the weight of methyl chloroform.
The metal specimen and stability test method are as follows.
金属試験片
鉄試験片：ＪＩＳ Ｇ３１４１（ＳＰ ＣＣ−Ｂ）
大きさ ２Ｘ１３Ｘ５０％
亜鉛試験片：ＪＩＳ Ｈ４３２１（アエンバン）大き
さ ２Ｘ１３Ｘ５０へ
安定性試験法
試料１５ｍｌとメチルクロロホルムに対し１０００重量
ＰＰｍの水分を入れた１００ｍｌ耐圧ガラス瓶に表面を
よく研磨し、十分に椀浄後、乾燥した鉄または亜鉛の試
験片を１個、試験片の上半分が気相空間に露出し、下半
分が液中に漬かるように入れ、密栓する。Metal test piece Iron test piece: JIS G3141 (SP CC-B)
Size: 2 x 13 x 50% Zinc test piece: JIS H4321 (Aenban) Size: 2 x 13 x 50 Stability test method Place 15 ml of the sample and 100 ml of pressure-resistant glass bottle containing 1000 PPm of water relative to methyl chloroform, polish the surface well, and thoroughly wash the bowl. After that, place one dry iron or zinc test piece in such a way that the upper half of the test piece is exposed to the gas phase space and the lower half is immersed in the liquid, and the test piece is tightly capped.
６０℃で所定時間処理した後、試料を室温まで冷却する
。After processing at 60° C. for a predetermined time, the sample is cooled to room temperature.
試験片を取り出し、その表面状態を液中に浸漬した部分
（以下、液相部と称す）と気相空間に露出した部分（以
下、液相部と称す）に分けて観察し、各金属に対する防
蝕性を次の基準によってランク付けする。The test piece was taken out, and its surface condition was divided into the part immersed in the liquid (hereinafter referred to as the liquid phase part) and the part exposed to the gas phase space (hereinafter referred to as the liquid phase part), and the surface condition was observed. Corrosion resistance is ranked according to the following criteria.
ランク１：全面にわたって強《腐蝕１る。Rank 1: Strong (corrosion 1) over the entire surface.
ランク２：部分的に強くまたは全面的に薄《腐蝕する。Rank 2: Partially strong or completely thin (corroded).
ランク３：部分的に少し腐蝕する。Rank 3: Partially slightly corroded.
ランク４：ほとんど全く変化しない。Rank 4: Almost no change.
実施例及び比較例１
メチルクロロホルムに表１に示す安定剤を加えたものを
試料として安定性試験を４８時間行なった。Examples and Comparative Example 1 A stability test was conducted for 48 hours using methyl chloroform to which the stabilizers shown in Table 1 were added as samples.
結果を表１に示す。実施例及び比較例２
メチルクロロホルムに対し１・４−ジオキサンの０．８
容量％、イソブチルアルコールのＯ− ６ 容量％、二
トロメタンの０．３容量％、１・２−プチレンオキシド
の０．４容量％を含むメチルクロロホルムに表２に示す
安定剤を加えたものを試料にして安定性試験を４８時間
行なった。The results are shown in Table 1. Example and Comparative Example 2 0.8 of 1,4-dioxane to methyl chloroform
% by volume, 0-6% by volume of isobutyl alcohol, 0.3% by volume of nitromethane, and 0.4% by volume of 1,2-butylene oxide to which the stabilizers shown in Table 2 were added. A stability test was conducted on the sample for 48 hours.
結果を表２に示す。The results are shown in Table 2.
以上のように本発明の組成物は水分の存在下においても
鉄、亜鉛等に対する防蝕性がよいために金属の脱脂洗浄
のみならず、多種の金属に長時間接触する機会の多いド
ライクリーニング液組成物、溶剤型塗料組成物、接着剤
組成物、エアゾル組成物等の溶剤成分として用いる有利
であり、その工業的意義は極めて高いものである。As described above, the composition of the present invention has good corrosion resistance against iron, zinc, etc. even in the presence of moisture, so it is not only useful for degreasing and cleaning metals, but also as a dry cleaning liquid that often comes into contact with various metals for a long time. It is advantageous for use as a solvent component in products, solvent-based coating compositions, adhesive compositions, aerosol compositions, etc., and its industrial significance is extremely high.
Claims (1)
なメチルクロロホルム組成物。1. A stable methylchloroform composition characterized by containing a fatty acid having 5 or more carbon atoms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17312480A JPS5812261B2 (en) | 1980-12-10 | 1980-12-10 | Stable methyl chloroform composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17312480A JPS5812261B2 (en) | 1980-12-10 | 1980-12-10 | Stable methyl chloroform composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5798223A JPS5798223A (en) | 1982-06-18 |
| JPS5812261B2 true JPS5812261B2 (en) | 1983-03-07 |
Family
ID=15954572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17312480A Expired JPS5812261B2 (en) | 1980-12-10 | 1980-12-10 | Stable methyl chloroform composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5812261B2 (en) |
-
1980
- 1980-12-10 JP JP17312480A patent/JPS5812261B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5798223A (en) | 1982-06-18 |
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