Sulfur dioxide 二氧化硫
CAS 7446-09-5 MFCD00011450
化学结构图
SMILES: O=S=O
化学属性
| Mol. Formula | O2S |
|---|---|
| Mol. Weight | 64.06 |
| Vapor Density | 2.26 (21 °C, vs air) |
| Boiling Point | -10℃ |
| Vapor Pressure | 1779 mmHg ( 21 °C) |
| Density | 1.0 |
| Melting Point | -76.1℃ |
| Solubility | 溶于水、乙醇。 |
别名和识别编码
| Chemical Name | Sulfur dioxide |
|---|---|
| Synonym | Sulfurous acid anhydride Schwefeldioxid dioxidedesoufre Sulfurous anhydride SULPHUR DIOXIDE epapesticidechemicalcode077601 亚硫酸酐(液) Fermenicide powder Sulfur superoxide 二氧化硫标准溶液 Sulfur dioxide Sulfur oxide (SO2) O2S (sulfur dioxide) Oxosulfane oxide Fermenicide liquid fermenicideliquid sulphur dioxide sulfurdioxide(so2) Sulfurous oxide fermenicidepowder SULFUROUS ANHYDRIDE caswellnumber813 sulphur (IV) oxide 二氧化硫(液) sulfur dioxide Fermenticide liquid 二氧化硫 siarkidwutlenek Sulphur dioxide siarkidwutlenek(polish) SO2 Sulfur oxide (SOx) 二氧化硫; 亚硫酸酐 SO2 亚硫酸酐 Schwefeloxid Sulfur oxide 二氧化硫标液 Schwefeldioxyd E 220 Sulfur dioxide (SO2) sulfur (IV) oxide Siarki dwutlenek |
| MDL Number | MFCD00011450 |
| CAS Number | 7446-09-5 |
| PubChem Substance ID | 24857804 |
| EC Number | 231-195-2 |
| Beilstein Registry Number | 3535237 |
| Chemical Name Translation | 二氧化硫 |
| Merck Number | 13,9061 |
| Wiswesser Line Notation | S O2 |
| LabNetwork Molecule ID | LN01808632 |
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分类
- {uni_hamburg} no charge; 1fragment
- {SNA} Chemical Synthesis, Specialty Gases, Synthetic Reagents
产品应用
- 用于ICP-AES、AAS、AFS、ICP-MS、离子色谱等。滴定分析用标准溶液。
相关文献及参考
- Merck: 14,8971
- Short: II/24C
- Short: II/24B
安全信息
GHS Symbol
- H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤
- H331 Toxic if inhaled 吸入中毒
- H280 Contains gas under pressure; may explode if heated 内含高压气体，遇热可能爆炸。
- P410+P403
- P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
- P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
- P305+P351+P338
- S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护；
- S9 Keep container in a well-ventilated place 保持容器在通风良好的场所；
- S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
- S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时，立即求医（可能时出示标签）；
- R34 Causes burns 会导致灼伤
- R23 Toxic by inhalation 吸入有毒
TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 500 ppm/5M/30W-I TOXIC EFFECTS : Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors REFERENCE : BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year: 21,606,1967
TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Human DOSE/DURATION : 3 ppm/5D TOXIC EFFECTS : Lungs, Thorax, or Respiration - other changes REFERENCE : TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 22,319,1972
TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 3000 ppm/30M TOXIC EFFECTS : Behavioral - convulsions or effect on seizure threshold Behavioral - changes in motor activity (specific assay) REFERENCE : JCTODH Journal of Combustion Toxicology. (Westport, CT) V.3-9, 1976-82. Volume(issue)/page/year: 4,236,1977
TYPE OF TEST : LCLo - Lowest published lethal concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Human DOSE/DURATION : 1000 ppm/10M TOXIC EFFECTS : Lungs, Thorax, or Respiration - respiratory depression REFERENCE : CTOXAO Clinical Toxicology. (New York, NY) V.1-18, 1968-81. For publisher information, see JTCTDW. Volume(issue)/page/year: 5,198,1972
TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSUR
TYPE OF TEST
TYPE OF TEST : LCLo - Lowest published lethal concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Mammal - species unspecified DOSE/DURATION : 3000 ppm/5M TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher information, see NSAPCC. Volume(issue)/page/year: 138,65,1928
TYPE OF TEST : Sister chromatid exchange ROUTE OF EXPOSURE : Multiple routes TEST SYSTEM : Human DOSE/DURATION : 42 mg/m3 REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 359,25,1996
TYPE OF TEST : Mutation test systems - not otherwise specified TEST SYSTEM : Bacteria - Escherichia coli DOSE/DURATION : 2 mmol/L REFERENCE : CBINA8 Chemico-Biological Interactions. (Elsevier Scientific Pub. Ireland Ltd., POB 85, Limerick, Ireland) V.1- 1969- Volume(issue)/page/year: 43,289,1983
TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Microorganism - not otherwise specified DOSE/DURATION : 10 mmol/L REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/
TYPE OF TEST : Cytogenetic analysis TEST SYSTEM : Mammal - domestic Cells - not otherwise specified DOSE/DURATION : 5 mmol/L REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 39,149,1977
TYPE OF TEST : DNA inhibition TEST SYSTEM : Human Lymphocyte DOSE/DURATION : 5700 ppb REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 39,149,1977
TYPE OF TEST : DNA damage TEST SYSTEM : Human Lymphocyte DOSE/DURATION : 5700 ppb REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 39,149,1977
TYPE
TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE : 4 mg/m3/24H SEX/DURATION : female 72 day(s) pre-mating TOXIC EFFECTS : Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain) Reproductive - Effects on Newborn - delayed effects REFERENCE : HYSAAV Hygiene and Sanitation (USSR). English translation of GISAAA. (Springfield, VA) 1964-71. Discontinued. Volume(issue)/page/year: 35(4-6),277,1970
TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSURE
TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE : 4 mg/m3/24H SEX/DURATION : female 72 day(s) pre-mating TOXIC EFFECTS : Reproductive - Maternal Effects - menstrual cycle changes or disorders Reproductive - Maternal Effects - parturition Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated) REFERENCE : HYSAAV Hygiene and Sanitation (USSR). English translation of GISAAA. (Springfield, VA) 1964-71. Discontinued. Volume(issue)/page/year: 35(4-6),277,1970
{TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE : 30 ppm/6H SEX/DURATION : male 21 week(s) pre-mating TOXIC EFFECTS : Reproductive - Paternal Effects - testes, epididymis, sperm duct REFERENCE : JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 21,141,1987
TYPE OF TEST
其他信息
- 外观性质:无色气体，特臭。
- 方法二:燃烧法 用硫磺与纯氧在焚硫炉内燃烧，生成高浓度的S0z气体。可经干燥、压缩、冷凝成液体SO2。 S+O2→SO2↑ 氨吸收法 用350～400g/L的氨水吸收硫酸厂尾气，吸收液含亚硫酸铵120～130g/L和亚硫酸氢铵230~270g/L，用硫酸分解可放出高浓度SO2气体。SO2气体经冷凝除水，浓硫酸干燥，焦炭或纤维过滤器过滤，压缩至0．5MPa，分油、冷却后成为液体产品。 2NH4HSO3+H2SO4→(NH4)2SO4+2H2O+2SO3↑ (NH4)2SO3+H2SO4→(NH4)2SO4+H2O+SO2↑
- 用途一:主要用于生产三氧化硫、硫酸、亚硫酸盐、硫代硫酸盐，也用作熏蒸剂、漂白剂、防腐剂、消毒剂、还原剂等
- {Chem
- 使用限量:GB 2760-96：可用于葡萄酒、果酒作为防腐剂，0.25g/kg。二氧化硫残留量不得超过0.05g/kg。 以熏硫法漂白果干、果脯、干菜、粉丝、蜜饯类允许残留量参照“硫黄”。 熏硫就是燃烧硫黄产生二氧化硫，可使果片表面细胞破坏，促进干燥，同时由于其还原作用，可破坏酶的氧化系统，阻止氧化作用。使果实中的单宁物质不致被氧化而变成棕褐色。尚可保存果实中的维生素C。熏硫室中二氧化硫浓度一般为1%～2%，最高可达3%。熏硫时间30～50min，最长可达3h。 FAO/WHO(1984；mg/kg)：白砂糖20(规格A)、70(规格B)；糖粉、果糖、葡萄糖粉20(带入量)；绵白糖40；无水葡萄糖、一水葡萄糖20；葡萄糖浆40；用于制造糖果时400；高浓度葡萄糖浆40，用于制造糖果时150；漂白葡萄干1500；果酱、果冻、橘皮果冻100，带入量；杏干2000；酸黄瓜50，由初制品带入；带防腐剂的菠萝浓汁500(仅用于制造)。 EEC(1990；mg/k)：椰子干50；啤酒70；蜜饯和罐装花椰素100；苹果汁200；大部分果干2000；千番木瓜酶和木瓜蛋白酶30000。 EEC
- 类别:有害气体
- 爆炸物危险特性:受热、日晒钢瓶可爆; 泄漏放出剧毒气体
- 下游产品:氯磺隆 --> 三氧化二铬 --> (R)-(+)-叔丁基亚磺酰胺 --> 硫光气 --> 铂 --> 环丁砜 --> 2-(氯磺酰基)苯甲酸甲酯 --> 2-萘胺-1-磺酸 --> 硒 --> 二氧化氯 --> 糖精钠 --> 羰基硫 --> 工业硫酸 --> 异丁酰氯 --> 亚氯酸钠 --> 亚硫酸铵 --> 亚硫酸氢铵 --> 邻氯苯磺酰胺 --> 噻吩黄隆 --> 苯乙酰氯 --> 4-羟基-7-苯胺基萘-2-磺酸 --> 2-氨基-8-萘酚-6-磺酸 --> 盐酸苄
- 蒸气密度:2.26 (21 °C, vs air)
- 用途五:主要用于生产三氧化硫、硫酸、保险粉、吊白块、AS合成洗涤剂、亚氯硫钠等。也用于生产糖精。液态的二氧化硫是良好的溶剂，可用于精制各种润滑油，并可用作冷冻剂。用于ICP-AES、AAS、AFS、ICP-MS、离子色谱等。滴定分析用标准溶液。
- 方法一:氨-酸法用硫酸分解硫酸厂尾气吸收工序所得的亚硫酸铵一亚硫酸氢铵母液，产生的约100％二氧化硫气体，经压缩法和冷冻法，可制得液体二氧化硫。 (1)压缩法 用硫酸分解亚硫酸铵-亚硫酸氢铵母液，分解产生的二氧化硫气体，经冷凝、干燥、过滤，再经
- 所属类别三:食品添加剂: 漂白剂
- Sigma Aldrich:7446-09-5(sigmaaldrich)
- F:4.5-31
- {Chemica
- 灭火剂:水
- 含量分析:由100％减去所测得的水分和不挥发残渣的差，即
- 毒性:对呼吸道有刺激作用，可引起支气管痉挛，并可导致呼吸道阻力增加。能刺激眼睛，对人的皮肤较薄及多汗的部位有刺激和烧灼感。 如发生中毒，应立即将患者移至有新鲜空气的地方，解开紧身衣服，迅速吸氧，冲洗眼睛和鼻腔，用2%苏打溶液漱口。如不慎溅人眼内，应速用大量温水冲洗。严重者应速送医院治疗。 空气中二氧化硫的最高容许浓度为10mg/m 3 。如二氧化硫和三氧化硫在空气中同时存在，其最高容许浓度相应降低。 操作人员应戴防毒面具，穿工作服，戴乳胶手套等劳保用品。
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