테트라브로모메테인
사브로민화탄소 · 사브롬화탄소 · 테트라브로모메탄 · 테트라브로모메테인 · CBr4 · TETRABROMOMETHANE · PERBROMOMETHANE · TETRABROMOETHANE
식별자 및 물리적 특성
| CAS No. | 558-13-4 |
|---|---|
| 분자식 | CBr4 |
| 평균 분자량 | 331.63 g/mol |
| 단동위원소 질량 | 327.6733484 g/mol |
| SMILES | BrC(Br)(Br)Br |
| InChIKey | HJUGFYREWKUQJT-UHFFFAOYSA-N |
| PubChem CID | 11205 |
| ChEBI | CHEBI:47875 |
| EC No. | 209-189-6 |
| DTXSID | DTXSID8060327 |
| 현지명 | 테트라브로모메테인 |
화학 및 물리적 성질
| XLogP | 3.4 |
|---|---|
| 극성 표면적 | 0 |
| 수소 결합 공여자 수 | 0 |
| 수소 결합 수용자 수 | 0 |
| 회전 가능 결합 수 | 0 |
| 무거운 원자 수 | 5 |
| 형식 전하 | 0 |
| 복잡도 | 19.1 |
| Solvents | Solvents -> Brominated Solvents |
| SpringerMaterials Properties | Schoenflies notation |
| LogP(분배 계수) | log Kow= 3.42 |
| 냄새 | Slight odor.Lacrymator |
| 밀도 | 3.42 (NIOSH, 2024) - Denser than waterwill sink2.9608 @ 100 °C/4 °CRelative density (water = 1): 3.423,42 g/cm3 |
| Color/Form | Colorless, monoclinic tabletsColorless crystalsColorless to yellow-brown crystals. |
| 용해도 | 0.02 % (NIOSH, 2024)Sol in alcohol, ether, chloroformSoluble in ethanol, chloroform, and ethyl ether.In water, 0.024 g/100 ml @ 30 °CSolubility in water: none0.02%클로로포름에 용해됨 |
| 끓는 점 | 374 °F at 760 mmHg (NIOSH, 2024)189.5 °C190 °C190 °C(lit.) |
| Decomposition | When heated to decomp it emits toxic fumes of /hydrogen bromide/. |
| 녹는점 | 194 °F (NIOSH, 2024)90.1 °C90 °C88-90 °C(lit.) |
| 증기 밀도 | 11.4Relative vapor density (air = 1): 11.4 |
| 증기압 | 40 mmHg at 205 °F (NIOSH, 2024)0.72 [mmHg]0.72 mm Hg @ 25 °CVapor pressure, kPa at 96 °C: 5.3340 mmHg at 205 °F(205 °F): 40 mmHg40 mm Hg ( 96 °C) |
| 굴절률 | 1.5942 |
| 인화점 | 190°C |
| 저장 조건 | Store below +30°C. |
| 물리적 상태 | 결정질 고체 |
| 색상 | 흰색에서 황백색까지 |
| 용해도 | 불용성 |
| 비열 | Cp(crystal): 0.44 J/(g·K)Cp(gas): 0.28 J/(g·K), at 25℃ |
| BRN | 1732799 |
| 헨리 상수 | 2.0×10-2 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) |
| 유전율 | 7(22.0℃) |
| InChI | 1S/CBr4/c2-1(3,4)5 |
| InChIKey | HJUGFYREWKUQJT-UHFFFAOYSA-N |
| SMILES | BrC(Br)(Br)Br |
| NIST | Carbon tetrabromide(558-13-4) |
| EPA | Carbon tetrabromide (558-13-4) |
화학적 성질
Carbon tetrabromide, is a colorless powder, white crystalline solid, or yellow-brown crystals. Slight odor
안전 및 규제
| GHS 분류 | DangerH302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P354+P338, P317, P319, P321, P330, P332+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 111 reports by companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H302: Harmful if swallowed [Warning Acute toxicity, oral] |
|---|---|
| 규제 정보 | Chemical: Methane, tetrabromo-Carbon tetrabromide: Does not have an individual approval but may be used under an appropriate group standardThe 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.) |
| 운송 라벨(DOT) | Poison |
| 화재 위험 | Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. |
| 화재 가능성 | Not flammable by standard tests in air |
| 건강 유해성 | Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:· Highly toxic, may be fatal if inhaled, ingested or absorbed through skin. |
| 유해성 요약 | In an acute study of mice, carbon tetrabromide was determined to be 2.2 times more toxic to the liver than carbon tetrachloride. It causes significant eye irritation (tearing) in workers even at lower exposure levels. [ACGIH] A lachrymator[HSDB] Inhalation of high concentrations can cause CNS depressionCauses corrosive burns to eyes [ICSC] |
| 운송 번호 및 가이드(DOT) | 2516 151 |
| 반응성 그룹 | Halogenated Organic Compounds |
| UN 분류 | UN Hazard Class: 6.1UN Pack Group: III |
| Reactivity Profile |
용도
개요
Carbon tetrabromide is considered a highly toxic chemical, may be fatal if inhaled, swallowed, or absorbed through skin. It is metabolized in vitro to produce carbon monoxide but the in vivo significance has not been established. Under anaerobic reducing conditions it forms complexes with ferrous cytochrome P450. Carbon monoxide is detected as a metabolic product of the interaction. Carbon tetrabromide’s production and use in organic syntheses may result in its release to the environment through various waste streams. Carbon tetrabromide has been isolated from red algae, Asparagopsis toxiformis, found in the ocean near Hawaii. It was detected in water from treated chlorinated seawater used for drinking at oil platforms. Occupational exposure to carbon tetrabromide may occur through inhalation and dermal contact with this compound at workplaces where it is produced or used. The general population may be exposed to carbon tetrabromide via ingestion of drinking water. Acute exposures to high concentrations may cause upper respiratory tract irritation and injury to lungs, liver (hepatotoxicity) and kidneys (nephrotoxicity). Chronic exposure effects at very low levels will be almost entirely limited to liver injury. It is a potent lachrymator even at low exposure concentrations. Although carbon tetrabromide may release bromine ions during metabolism, clinical bromism is not expected to occur.
용도
Carbon tetrabromide is used to a limited extent as a chemical intermediate. It has been isolated from red algae, Asparagopsis toxiformis, found in the ocean near Hawaii.
일반 설명
A colorless crystalline solid. Much more dense than water and insoluble in water. Toxic by ingestion. Vapors are narcotic in high concentration. Used to make other chemicals.