Formamidinesulphinic acid 二氧化硫脲

CAS 1758-73-2 MFCD00002397

化学结构图

1758-73-2
SMILES: N=C(N)S(=O)O

化学属性

Mol. FormulaCH4N2O2S
Mol. Weight108.12
Melting Point142-143°C
Density2.25
TSCAYes
Solubility二氧化硫脲对湿敏感。在沸水中立即分解。在微碱性溶液中则分解为尿素和次硫酸。易溶于水,水溶液呈微酸性,溶于浓硫酸,微溶于冰乙酸,不溶于乙醚和苯等有机溶剂。加热至142-143℃分解。有刺激性。水中溶解度: 30 g/L (20°C)
Stability对湿度敏感
Appearance 二氧化硫脲(1758-73-2)为白色无臭晶体粉末,是一种既无氧化性又无还原性的稳定化合物。熔点126℃左右,但加热到100℃以上时,则慢慢分解,在110℃时就分解生成SO2,继续加热,则分解为尿素和亚硫酸。20℃时,在1L水中的溶解度为26.7g,其水溶液呈酸性,不溶于醚和苯。在碱的作用下,能分解为尿素和亚硫酸钠。
Boiling Point355.3±25.0 °C at 760 mmHg

别名和识别编码

Chemical NameFormamidinesulphinic acid
Synonym Aminoiminomethanesulphinic acid {LY} Aminoiminomethanesulphinic acid thiourea dioxide {} {LY} Aminoiminomethanesulphinic acid {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} { {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Aminoiminomethanesulphinic acid {} {} {} {} {} {} {} {} {} {} {}
Beilstein Registry Number506653
PubChem Substance ID61274
CAS Number1758-73-2
EC Number217-157-8
MDL NumberMFCD00002397
Reaxys-RN506653
Chemical Name Translation二氧化硫脲
LabNetwork Molecule IDLN00193356
Canonical SMILESO=S(C(N)=N)O
InChIInChI=1S/CH4N2O2S/c2-1(3)6(4)5/h(H3,2,3)(H,4,5)
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分类

  • {SNA} Building Blocks, Chemical Synthesis, Organic Building Blocks, Sulfonic/Sulfinic Acids, Sulfur Compounds

产品应用

  • 酮类还原成仲醇的试剂。分离稀有金属铑和铱。照相乳胶敏化剂。聚氯乙烯稳定剂。

相关文献及参考

  • Disulfides and N-tosylsulfimines are reduced, under phase-transfer conditions, to thiols and sulfides respectively: Synthesis, 529 (1975). In the presence of iodine as a catalyst, sulfoxides are reduced to sulfides in high yield: Synthesis, 542 (1978).
  • For use in the reductive cyclization of nitro ketones to pyrroles, see 2-Benzyl­idenecyclohexanone, L13434 and 3-Penten-2-one, L13031.
  • Beilstein:3(1)36
  • Disulfides and N-tosylsulfimines are reduced, under phase-transfer conditions, to thiols and sulfides respectively: Synthesis, 529 (1975). In the presence of iodine as a catalyst, sulfoxides are reduced to sulfides in high yield: Synthesis, 542 (1978).
  • Has been used to reduce ketones to secondary alcohols: Tetrahedron Lett., 343 (1972), and aldehydes to primary alcohols: J. Chin. Chem. Soc., 21, 235 (1973).
  • Has been used to reduce ketones to secondary alcohols: Tetrahedron Lett., 343 (1972), and aldehydes to primary alcohols: J. Chin. Chem. Soc., 21, 235 (1973).
  • For use in the reductive cyclization of nitro ketones to pyrroles, see 2-Benzyl­idenecyclohexanone, L13434 and 3-Penten-2-one, L13031.

安全信息

Precautionary statements
  • P201 Obtain special instructions before use. 使用前获取专门指示。
  • P202 Do not handle until all safety precautions have been read and understood. 已阅读并理解所有的安全预防措施之前,切勿操作。
  • P203
  • P235 Keep cool. 保持凉爽。
  • P235+P410
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray. 不要吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P264+P265
  • P270 Do not eat, drink or smoke when using this product. 使用本产品时不要吃东西,喝水或吸烟。
  • P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。
  • P273 Avoid release to the environment. 避免释放到环境中。
  • 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。
  • P281 Use personal protective equipment as required. 使用所需的个人防护装备。
  • P284 Wear respiratory protection.? 佩戴呼吸保护装置。
  • P301+P312
  • P301+P312+P330
  • P301+P317
  • P302+P350
  • P302+P352
  • P302+P352+P332+P313+P362+P364
  • P304+P312
  • P304+P340
  • P304+P340+P310
  • P305+P351+P338
  • P305+P351+P338+P310
  • P305+P354+P338
  • P307+P311
  • P308+P313
  • P308+P316
  • P309+P311
  • P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
  • P312 Call a POISON CENTER or doctor/physician if you feel unwell. 如果你感觉不适,呼叫解毒中心或医生/医师。
  • P314 Get medical advice/attention if you feel unwell. 获取医疗咨询/就医,如果你觉得不舒服
  • P316
  • P317
  • P318
  • P319
  • P320 Specific treatment is urgent (see … on this label). 紧急具体治疗(见本标签上的)。
  • P321 Specific treatment (see … on this label). 具体治疗(见本标签上的)。
  • P330 Rinse mouth. 漱口
  • P332+P313
  • P332+P317
  • P337+P313
  • P337+P317
  • P362 Take off contaminated clothing and wash before reuse. 脱掉污染的衣服,清洗后方可重新使用
  • P362+P364
  • P403+P233
  • P405 Store locked up. 上锁保管。
  • P407 Maintain air gap between stacks/pallets. 在堆叠/货板间保持气隙。
  • P410 Protect from sunlight. 防止阳光照射。
  • P413 Store bulk masses greater than … kg/…lbs at temperatures not exceeding … oC/…oF. 商店散装超过…kg/…lbs 时温度不应超过…oC/…oF.
  • P420 Store away from other materials. 远离其他材料。
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
WGK Germany1
GHS Symbol
Signal word
Hazard statements
  • H251 Self-heating: may catch fire 自我放热:可能着火
  • H252 Self-heating in large quantities; may catch fire 自我释放大量的热;可能着火。
  • H302 Harmful if swallowed 吞食有害
  • H315 Causes skin irritation 会刺激皮肤
  • H318 Causes serious eye damage 严重伤害眼睛
  • H319 Causes serious eye irritation 严重刺激眼睛
  • H330 Fatal if inhaled 吸入致命
  • H332 Harmful if inhaled 吸入有害
  • H335 May cause respiratory irritation 可能导致呼吸道刺激
  • H373 May causes damage to organs through prolonged or repeated exposure 长期或频繁接触可能会损伤器官
Hazard Codes
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
RTECSPB0372500
UN Number
Safety Statements
  • S24/25 Avoid contact with skin and eyes 避免皮肤和眼睛接触;
  • 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;
  • S36/37 Wear suitable protective clothing and gloves 穿戴适当的防护服和手套;
  • 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;
  • S60 This material and its container must be disposed of as hazardous waste 该物质及其容器必须作为危险废物处置;
Risk Statements
  • R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
  • R22 Harmful if swallowed 吞咽有害
  • R5 Heating may cause an explosion 加热会引起爆炸
Storage condition 2-8°C {LY} 2-8°C Moisture Sensitive {} {LY} 2-8°C {} {} {LY} 2-8°C {} {} {} {LY} 2-8°C {} {} {} {} {LY} 2-8°C {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} { {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {
Packing GroupII
Hazard Class4.2

其他信息

  • 用途二:用作合成纤维助剂、脱色剂、照相胶片乳化剂、氯丁二烯聚合剂以及铑和铱分离剂等
  • TCI Shanghai:氨基亚氨基甲亚磺酸 Formamidinesulfinic Acid,
  • 用途三:二氧化硫脲作为还原剂在印染工业广泛用于羊毛漂白、还原染料与硫化染料的染色、分散染料染色用的还原洗净剂、拔染脱色剂。在有机合成中用来还原酮、醌、硝基、偶氮、氧化偶氮、氧化偶氮、次联氮基化合物以及有机硫化物等。二氧化硫脲还作为各种脱色剂,是照相胶化乳胶的敏化剂,分离稀有金属铑和铱的化学试剂,可提高聚乙烯的稳定性。在聚丙烯腈和聚合的蒸发过程中加入二氧化硫脲,能使聚丙烯腈的色泽得到改善,是合成纤维生产的重要配套产品。本品还广泛用于医药、香料等精细化工产品的生产等。
  • 二氧化硫脲价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 xw090008 二氧化硫脲;甲脒亚磺酸 100g 95元 2011/04/16 F0115 氨基亚氨基甲亚磺酸 Formamidinesulfinic Acid 25G 167元 2011/04/16 F0115 氨基亚氨基甲亚磺酸 Formamidinesulfinic Acid 500G 665元
  • 上游原料:过氧化氢 --> 硫脲 --> 碳酸氢铵 --> 氰氨化钙 --> 臭氧 --> 硫化铵
  • 用途四:酮类还原成仲醇的试剂。分离稀有金属铑和铱。照相乳胶敏化剂。聚氯乙烯稳定剂。增强丙烯腈合成纤维的拉力和改善色泽。本品还广泛用于医药、香料等精细化工产品的生产等。 纯碎的二氧化硫脲是一种既无氧化性又无还原性的稳定化合物,在水中的溶解度为26.7克/升(20℃),饱和水熔液的PH值为5.0。即使在20-30℃的水溶液中也非常稳定,但是把溶有二氧化硫脲的碱性溶液加热,就具有很高的还原电位(-1230Mv),会发生分解,游离出呈还原性的亚磺酸,因此体现出了一个较强的还原活动。
  • Sigma Aldrich:1758-73-2(sigmaaldrich)
  • 纯碎的二氧化硫脲是一种既无氧化性又无还原性的稳定化合物,在水中的溶解度为26.7克/升(20℃),饱和水熔液的PH值为5.0。即使在20-30℃的水溶液中也非常稳定,但是把溶有二氧化硫脲的碱性溶液加热,就具有很高的还原电位(-1230Mv),会发生分解,游离出呈还原性的亚磺酸,因此体现出了一个较强的还原活动。
  • 防护措施:毒性作用与硫脲相似,但较硫脲更强。给大鼠腹腔注射LD50为0.42mg/kg,且有明显积蓄作用。防护参见”硫脲“。
  • MSDS 信息:Thiourea dioxide(1758-73-2).msds
  • 海关编码:29309070
  • 方法一:由硫脲与双氧水反应而得。在反应锅加入蒸馏水,搅拌,用冷冻盐水将锅内温度降至8-10℃时,开始加入硫脲并滴加双氧水,控制滴加速度,使反应温度保持在20℃以下。当pH值在3-5以后,可反复投料。反应将结束时,可加水使反应温度不再上升。当pH值在2-3,料温降至5℃左右时,可将氧化产物放至离心机甩干,再纺烘房干燥而得二氧化硫脲。1t产品消耗98%的硫脲1t,30%的双氧水3.4t。此外,本品以臭氧和硫脲为原料或以氰氨化钙、硫化铵和双氧水为原料也可制得。
  • 二氧化硫脲对湿敏感。在沸水中立即分解。在微碱性溶液中则分解为尿素和次硫酸。易溶于水,水溶液呈微酸性,溶于浓硫酸,微溶于冰乙酸,不溶于乙醚和苯等有机溶剂。加热至142-143℃分解。有刺激性。水中溶解度: 30 g/L (20°C)
  • 图谱信息:二氧化硫脲(1758-73-2)红外图谱(IR1) 二氧化硫脲(1758-73-2)红外图谱(IR2)
  • 下游产品:A,A二苯基Β苦基肼基游离基
  • Alfa Aesar:甲脒磺酸,98% Formamidinesulfinic acid, 98%(1758-73-2)
  • Acros Organics:甲脒亚磺酸 Formamidinesulfinic acid, 99%(1758-73-2)
  • MOL 文件:1758-73-2.mol
  • 敏感性:Moisture Sensitive

系列性分类


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