|
|
| CAS番号. | 7446-09-5 |
| 化学名: | 二酸化イオウ |
| 别名: | 二酸化イオウ;亜硫酸ガス;二酸化硫黄 |
| 英語化学名: | Sulfur dioxide |
| 英語别名: | SO2;sulfuroxide;Sulfur oxide;Schwefeldioxid;Schwefeldioxyd;sulfurousoxide;SulfureDioxide;Sulfur dioxide;SULPHUR DIOXIDE;dioxidedesoufre |
| CBNumber: | CB4323183 |
| 分子式: | O2S |
| 分子量: | 64.06 |
| MOL File: | 7446-09-5.mol |
|
|
|
|
| 二酸化イオウ 物理性質 |
|
|
|
|
| 比重(密度) : |
1.25 g/mL at 25 °C(lit.)
|
|
| 蒸気密度: |
2.26 (21 °C, vs air)
|
|
|
|
|
|
| 安定性：: |
Stable. Non-corrosive when dry to common materials except zinc; corrosive when wet. Incompatible with strong reducing or oxidizing agents, moisture, zinc and its alloys. |
|
|
|
|
|
|
|
|
二酸化イオウ 化学特性,用途語,生産方法 |
|
|
空気と水の反応
Dissolves in water to form sulfurous acid, a corrosive liquid. Moist Sulfur dioxide is very corrosive due to the slow formation of sulfuric acid [Handling Chemicals Safely 1980 p. 876]. |
|
反応プロフィール
Sulfur dioxide is acidic. Reacts exothermically with bases such as amines, amides, metal oxides, and hydroxides. Frequently used as a reducing agent although Sulfur dioxide is not a powerful one. Acts as a reducing bleach to decolorize many materials. Can act as an oxidizing agent. Supports combustion of powdered aluminum [Mellor 5:209-212 1946-47]. Reacts explosively with fluorine [Mellor 2:1 1946-47]. Supports burning of manganese [Mellor 12:187 1946-47]. Readily liquefied by compression. Contact between the liquid and water may result in vigorous or violent boiling and extremely rapid vaporization. If the water is hot an explosion may occur. Pressures may build to dangerous levels if the liquid contacts water in a closed container [Handling Chemicals Safely 1980]. Supports incandescent combustion of monocesium acetylide, monopotassium acetylide, cesium oxide, iron(II) oxide, tin oxide, and lead oxide [Mellor]. Ethylene oxide and SO2 can react violently in pyridine solution with pressurization if ethylene oxide is in excess (Nolan, 1983, Case History 51). |
|
健康ハザード
Sulfur dioxide may cause death or permanent injury after very short exposure to small quantities. 1,000 ppm causes death in from 10 minutes to several hours by respiratory depression. It is an eye and respiratory tract irritant. Persons with asthma, subnormal pulmonary functions or cardiovascular disease are at a greater risk. |
|
火災危険
Containers may explode in heat of fire or they may rupture and release irritating toxic Sulfur dioxide. Sulfur dioxide has explosive properties when Sulfur dioxide comes in contact with sodium hydride; potassium chlorate at elevated temperatures; ethanol; ether; zinc ethylsulfurinate at very cool temperatures (-15C); fluorine; chlorine trifluoride and chlorates. Sulfur dioxide will react with water or steam to produce toxic and corrosive fumes. When the liquid is heated Sulfur dioxide may release irritating, toxic Sulfur dioxide gas. Avoid ammonia, monocesium or monopotassium acetylide; dicesium monoxide; iron (II) oxide; tin oxide; lead (IV) oxide; chromium; manganese; molten sodium, powder aluminum and rubidium. Sulfur dioxide has explosive properties when Sulfur dioxide comes in contact with sodium hydride; potassium chlorate at elevated temperatures; ethanol; ether; zinc ethylsulfurinate at very cool temperatures (-15C); fluorine; chlorine trifluoride and chlorates. Sulfur dioxide will react with water or steam to produce toxic and corrosive fumes. Hazardous polymerization may not occur. |
|
|
| 二酸化イオウ 上流と下流の製品情報 |
原材料
亜硫酸ジアンモニウム
硫黄
アンモニア水 (28%) [一般有機合成用]
亜硫酸水素アンモニウム
酸素
三硫化二鉄
硫酸水素
炭酸ナトリウム [一般有機合成用]
アンモニア (約4%メタノール溶液, 約2.0mol/L)
くえん酸
|
準備製品
2-クロロ-2-フェニルアセトフェノン
スルホニルジフルオリド
N,N-ジメチル-3-[(1-ベンジル-1H-インダゾール-3-イル)オキシ]プロパン-1-アミン·塩酸塩
2-ヨードベンゾイルクロリド
亜硫酸ジアンモニウム
2,2'-(1,3,4-オキサジアゾール-2,5-ジイル)ビス(1-アミノ-9,10-アントラセンジオン)
白金
2-アミノ-1-ナフタレンスルホン酸
セレン
硫酸ジブチル
(R)-(+)-tert-ブチルスルフィンアミド
亜硫酸水素アンモニウム
ドデカン酸ペンタクロロフェニル
テトラヒドロチオフェン 1,1-ジオキシド
2-[4-クロロ-3-(クロロスルホニル)ベンゾイル]安息香酸
3-スルホレン
2-クロロベンゼンスルホンアミド
6-アミノ-4-ヒドロキシ-2-ナフタレンスルホン酸
オキソチオキソメタン
ジエチルアミン·2,5-ジヒドロキシベンゼンスルホン酸
塩素(IV)ジオキシド
7-アニリノ-4-ヒドロキシ-2-ナフタレンスルホン酸
3-シアノプロペン酸メチル
o-スルホベンズイミドナトリウム二水和物
チオホスゲン
酢酸α-(クロロカルボニル)ベンジル
3-[[3-(4-メトキシ-6-メチル-1,3,5-トリアジン-2-イル)ウレイド]スルホニル]チオフェン-2-カルボン酸メチル
1-[(o-クロロフェニル)スルホニル]-3-(4-メトキシ-6-メチル-1,3,5-トリアジン-2-イル)尿素
フェニルアセチル クロリド
1-ブロモ-2-ナフトール
酸化クロム
ヒドロキシメタンスルフィン酸ナトリウム二水和物
亜塩素酸ナトリウム
イソ酪酸 クロリド
2-(クロロスルホニル)安息香酸メチル
フェニルアルシン オキシド
|
| 二酸化イオウ 生産企業 Global( 56)Suppliers |
|
|
|
|
|