메틸히드리진
메틸하이드라진 · 메틸히드라진 · 메틸히드리진 · 히드라조메탄 · CH3NHNH2 · N-METHYLHYDRAZINE · MMH · JJJ

식별자 및 물리적 특성
| CAS No. | 60-34-4 |
|---|---|
| 분자식 | CH6N2 |
| 평균 분자량 | 46.072 g/mol |
| 단동위원소 질량 | 46.0530982 g/mol |
| SMILES | CNN |
| InChIKey | HDZGCSFEDULWCS-UHFFFAOYSA-N |
| PubChem CID | 6061 |
| ChEMBL | CHEMBL160520 |
| EC No. | 200-471-4 |
| DTXSID | DTXSID4020874 |
| 현지명 | 메틸히드리진 |
화학 및 물리적 성질
| XLogP | -0.9 |
|---|---|
| 극성 표면적 | 38.1 |
| 수소 결합 공여자 수 | 2 |
| 수소 결합 수용자 수 | 2 |
| 회전 가능 결합 수 | 0 |
| 무거운 원자 수 | 3 |
| 형식 전하 | 0 |
| 복잡도 | 2.8 |
| 물질 분류 | Hazardous Air Pollutants (HAPs)Toxic Gases & Vapors -> Other Toxic Gases & VaporsCarcinogens |
| pH | Mildly alkaline base |
| SpringerMaterials Properties | Coriolis coupling |
| LogP(분배 계수) | log Kow= -1.05 |
| 냄새 | Odor characteristic of short chain, organic aminesAmmonia-like odor |
| 밀도 | 0.874 at 77 °F (EPA, 1998) - Less dense than waterwill float0.874 at 25 °CRelative density (water = 1): 0.870.874 @25 °C(77 °F): 0.870.875 g/mL at 20 °C(lit.) |
| Viscosity | 0.775 cP at 25 °C |
| Color/Form | Clear liquidFuming, colorless liquid. |
| 용해도 | Insoluble (<1 mg/ml at 75 °F) (NTP, 1992)>10% in ethyl ether>10% in ethanol>10% in waterSOL IN PETROLEUM ETHERFor more Solubility (Complete) data for METHYLHYDRAZINE (6 total), please visit the HSDB record page.알코올과 에테르에 용해됨(Weast, 1986) |
| 인화점 | 158 °F (EPA, 1998)-8 °C, 17 °F (closed cup)-8.3 °C c.c.70 °F |
| 끓는 점 | 190 °F at 760 mmHg (EPA, 1998)87.5 °C87.5 °C @760 [mm Hg]88-90 °C(lit.) |
| Decomposition | When heated to decomposition it emits toxic fumes of /nitrogen oxide/. |
| 녹는점 | -21 °C |
| 증기 밀도 | 1.6 (vs air) |
| 증기압 | 37.5 mm Hg ( 20 °C) |
| 굴절률 | n20/D 1.4325(lit.) |
| 저장 조건 | Flammables area |
| pKa(산도 계수) | 8.84±0.70(Predicted) |
| 물리적 상태 | 액체 |
| 색상 | 무색~담황색 |
| 폭발한계 | 97% |
| 용해도 | 녹는 |
| 비열 | Cp(liquid): 2.93 J/(g·K)Cp(gas): 1.54 J/(g·K), at 25℃ |
| Merck | 13,6109 |
| BRN | 635645 |
| 헨리 상수 | 3.3×100 mol/(m3Pa) at 25℃, HSDB (2015) |
| 안정성 | 안정적인. 가연성. 흡습성. 강한 산화제, 구리, 철 및 그 합금과 호환되지 않습니다. |
| NIST | Hydrazine, methyl-(60-34-4) |
| EPA | Methyl hydrazine (60-34-4) |
화학적 성질
colourless liquid with an ammonia-like odour
안전 및 규제
| GHS 분류 | DangerH350: May cause cancer [Danger Carcinogenicity]P203, P280, P318, P405, and P501 (click each P-code to see the statement)H225 (86.1%): Highly Flammable liquid and vapor [Danger Flammable liquids]P203, P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P272, P273, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P318, P320, P321, P330, P333+P317, P342+P316, P361+P364, P362+P364, P363, P370+P378, P391, P403, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement) |
|---|---|
| Hazards Identification | Toxic/poison by inhalation (TIH/PIH) |
| 규제 정보 | Chemical: Hydrazine, methyl-REACH registered substance: Methylhydrazine (EC: 200-471-4)The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| 기타 안전 정보 | IMAP assessments - Hydrazine, methyl-: Human health tier II assessment |
| 운송 라벨(DOT) | Poison Inhalation Hazard Flammable Liquid Corrosive |
| 화재 위험 | Extremely flammableignites spontaneously under almost all normal temperature conditions. Water used to extinguish a fire may cause pollution and should be diked for later disposal. Water may be ineffective in extinguishing fires due to the chemical's low flash point. Because of the wide flammability limits, low flash point, and reignition hazard, dry chemicals, carbon dioxide, water spray, and foam may not be as effective as water dilution of fire area. The vapor is heavier than airthus it may accumulate sufficiently to flash back. Methylhydrazine fires produce irritating nitrogen oxides. Ignites spontaneously in air when in contact with porous materials (e.g., earth, asbestos, wood, or cloth). Also ignites spontaneously on contact with strong oxidizing agents (e.g., fluorine, chlorine trifluoride, fuming nitric acid, and nitrogen tetroxide). Heat or flame should be avoided because chemical is extremely flammable and explosive. (EPA, 1998)· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.Highly flammable. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire. Vapour/air mixtures are explosive. Risk of fire and explosion on contact with oxidizing agents or metal oxides. |
용도
개요
Methyl hydrazine, CH3NHNH2, is a colorless, hygroscopic liquid with an ammonia-like odor. It is soluble in water, with a specific gravity of 0.87, which is lighter than water. Methyl hydrazine is toxic by inhalation and ingestion, and is a suspected human carcinogen. The TLV ceiling is 0.2 ppm in air, and the IDLH is 50 ppm. The target organs are the central nervous system, respiratory system, liver, blood, eyes, and cardiovascular system. The four-digit UN identification number is 1244. The NFPA 704 designation is health 4, flammability 3, and reactivity 2. The primary uses are as a missile propellant and a solvent.
용도
Methylhydrazine is used in missile propellants and as a solvent and chemical intermediate.
제조 및 합성 방법
생산 방법
Methylhydrazine ignites spontaneously on contact with strong oxidizing agents. It is prepared commercially from the reaction of monochloroamine and monomethylamine.