이산화티오요소
Thiourea dioxide
기본 정보
- CAS
1758-73-2- 표준 SMILES
N=C(N)S(=O)O- InChIKey
FYOWZTWVYZOZSI-UHFFFAOYSA-N- 분자식
- CH4N2O2S
- 평균 분자량
- 108.12 g/mol
- 단동위원소 질량
- 107.99934837
개요
Thiourea dioxide appears as a white or light-yellow odorless crystalline powder. Mp:126 °C. Soluble in water (27 g / L at room temperature). Decomposes exothermically at temperatures above 126 °C with the emission of noxious gases (sulfur oxides, ammonia, carbon monoxide, nitrogen oxides and hydrogen sulfide) and carbon dioxide. Extended exposure to temperatures above 50 °C and moisture may cause visible decomposition. Irritating to skin and mucous membranes. Corrosive to eye tissue. Used in leather processing, the paper industry, photographic industry, and in textile processing as a bleaching agent.
이름 및 식별자
- 우선 이름
- Thiourea dioxide
- IUPAC
- amino(imino)methanesulfinic acid
- 현지명
- 이산화티오요소
- 영어명
- Thiourea dioxide
- 분자식
- CH4N2O2S
- 분자량
- 108.12
이름 및 동의어
Thiourea dioxide1758-73-2Formamidinesulfinic acidManofastFormamidine sulfinic acidAMINOIMINOMETHANESULFINIC ACIDNSC 34540NSC 22697942BWR07L73NSC-34540NSC-226979RefChem:897984
이름 더 보기
아미노이미노메탄술핀산포르마미딘술핀산폼아미딘설핀산아미노이미노메탄술핀산1-아미노-1-이미노메테인설핀산메탄설핀 산, 아미노이미노싸이오요소 이산화물싸이오유레아 다이옥사이드싸이오한스토프이산화물아미노이미노메테인설핀산아미노이미노케탄설핀스요소포름아미딘설핀 산포름아미딘설핀스요소폼아미딘 설핀산Thiurea dioxideThiourea S,S-dioxideFORMAMIDINESULPHINIC ACIDaminoimino-methanesulfinicaciFASTECHAmino(imino)FAS PRIMER PAIRTiourea dioxide
217-157-8amino(imino)methanesulfinic acidcarbamimidoylsulfinic acidAminoiminomethanesulphinic acidAIMSAMethanesulfinic acid, 1-amino-1-imino-Methanesulfinic acid, aminoimino-formamidine sulfuric acid
물성
구조 계산 물성
- XLogP
- -1.1
- 극성 표면적
- 106 Ų
- 수소 결합 공여자 수
- 3
- 수소 결합 수용자 수
- 4
- 회전 가능 결합 수
- 1
- 무거운 원자 수
- 6
- 형식 전하
- 0
- 복잡도
- 89.5
실험 및 물리화학적 성질
Physical Description
Thiourea dioxide appears as a white or light-yellow odorless crystalline powder. Mp:126 °C. Soluble in water (27 g / L at room temperature). Decomposes exothermically at temperatures above 126 °C with the emission of noxious gases (sulfur oxides, ammonia, carbon monoxide, nitrogen oxides and hydrogen sulfide) and carbon dioxide. Extended exposure to temperatures above 50 °C and moisture may cause visible decomposition. Irritating to skin and mucous membranes. Corrosive to eye tissue. Used in leather processing, the paper industry, photographic industry, and in textile processing as a bleaching agent.
Dry Powder
물리화학적 성질
- 녹는점
- 124 · 124-127 °C (dec.)(lit.)
- 끓는 점
- 355.3 · 355.3±25.0 °C(Predicted)
- 밀도
- 1.68 · 1.68
- 증기압
- 0 Pa · 0Pa at 25℃
- 굴절률
- 1.655 · 1.6550 (estimate)
- 저장 조건
- 2 · 2-8°C
- 용해도
- 27 g/L · 27g/L
- 물리적 상태
- 결정성 분말
- 산도 계수 (pKa)
- 2.4 · 2.40±0.10(Predicted)
- 색상
- 하얀색
- 수소이온지수(pH)
- 4 · 4 (10g/l, H2O, 20℃)
안전 및 규제
안전 정보는 참고용이며, 공급업체의 물질안전보건자료(SDS), 관련 법규 및 전문가 평가를 대체하지 않습니다.
GHS 분류
GHS Classification
This chemical does not meet GHS hazard criteria for 2.4% (4 of 164) of reports.
Danger
H251 (59.8%): Self-heating; may catch fire [Danger Self-heating substances and mixtures]
P235, P260, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, P407, P410, P413, P420, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 164 reports by companies from 25 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
유해성 정보
Regulatory Information
Chemical: Methanesulfinic acid, aminoimino-
Methanesulfinic acid, 1-amino-1-imino- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Methanesulfinic acid, 1-amino-1-imino- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 17-06-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/8595
Thiourea dioxide: HSNO Approval: HSR001431 Approved with controls
Other Safety InformationIMAP assessments - Methanesulfinic acid, aminoimino-: Human health tier II assessment
DOT LabelSpontaneously Combustible
Fire Hazards
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:
· Flammable/combustible material.
Health Hazards
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]:
· Fire will produce irritating, corrosive and/or toxic gases.
화학 및 산업
용도 및 제조
U.S. Production2023: 350,722 lb
Consumer UsesNot Known or Reasonably Ascertainable
Industry UsesBleaching agent
General Manufacturing Information
Not Known or Reasonably Ascertainable
Methanesulfinic acid, 1-amino-1-imino-: ACTIVE
응용 분야
용도Convenient reagent for the reduction of ketones to secondary alcohols. Thiourea dioxide is an effective bleach when used alone or when used after hydrogen peroxide in a full bleaching process (Duffield, 1986; Cegarra et al, 1988). Bleaching with thiourea dioxide is not common practice but it is effective when used alone, and the process compares favorably with hydrogen peroxide bleaching. A formulation can include a commercial thiourea dioxide product, wetting agent and EDTA sequestering agent. Reductive bleaching is carried out at pH 7.0 at 70°C for 60 min (Duffield, 1986).
일반 설명A white or light-yellow odorless crystalline powder. Mp:126°C. Soluble in water (27 g / L at room temperature). Decomposes exothermically at temperatures above 126°C with the emission of noxious gases (sulfur oxides, ammonia, carbon monoxide, nitrogen oxides and hydrogen sulfide) and carbon dioxide. Extended exposure to temperatures above 50°C and moisture may cause visible decomposition. Irritating to skin and mucous membranes. Corrosive to eye tissue. Used in leather processing, the paper industry, photographic industry, and in textile processing as a bleaching agent.
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