1,1-ジブロモエタン

1,1-ジブロモエタン · エチリデンジブロミド · 二臭化エチリデン · 臭化エチリデン · 1，1ジブロモエタン · エチリデンブロミド · 1,1‐ジブロモエタン · CH3CHBr2

https://huagongshe.com/ja/chemical/11201

識別子と物理属性

CAS No.	25620-62-6
分子式	C2H4Br2
平均分子量	187.86 g/mol
単同位体質量	185.86797433 g/mol
SMILES	CC(Br)Br
InChIKey	APQIUTYORBAGEZ-UHFFFAOYSA-N
PubChem CID	11201
EC No.	209-184-9
DTXSID	DTXSID3060324
現地名	1,1-ジブロモエタン

化学・物理的性質

XLogP	2.3
極性表面積	0
水素結合供与体数	0
水素結合受容体数	0
回転可能結合数	0
重原子数	4
形式電荷	0
複雑度	11.5
物質分類	Other Classes -> Halogenated Aliphatics, Saturated
SpringerMaterials Properties	Boiling point
密度	2.0555 g/cu cm at 20 °C2.06
Color/Form	Liquid
溶解度	Soluble in ethanol, acetone, and benzeneslightly soluble in chloroformvery soluble in ether.Insoluble in waterAcetonitrile (Slightly), Chloroform (Soluble)
沸点	108.0 °C107 °C
Decomposition	When heated to decomposition it emits toxic fumes of /hydrogen bromide/.
融点	-63 °C-63°C
蒸気圧	25.6 [mmHg]2.56X10+1 mm Hg at 25 °C
屈折率	Index of refraction = 1.5128 at 20 °C1.509-1.512
Physical Description	Liquid[HSDB] Clear, slightly brown liquidStabilized with potassium carbonate[MSDSonline]
Other Experimental Properties	Hydroxyl radical reaction rate constant = 2.50X10-13 cu cm/molecule-sec at 25 °C
外観・状態	液体
色	無色透明～褐色
比重	2.1
比熱容量	Cp(gas): 0.43 J/(g·K), at 25℃
ヘンリー定数	7.6×10-3 mol/(m3Pa) at 25℃, HSDB (2015)
CAS データベース	557-91-5(CAS DataBase Reference)
EPAの化学物質情報	Ethylidene bromide (557-91-5)

化学的特性

clear colourless to brownish liquid

安全性と法規制

GHS 分類	DangerH301 (66.7%): Toxic if swallowed [Danger Acute toxicity, oral]P203, P261, P262, P264, P264+P265, P270, P271, P280, P301+P316, P301+P317, P302+P352, P304+P340, P305+P351+P338, P316, P317, P318, P319, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 3 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
有害性の概要	A mutagen[RTECS] Not mutagenic to Salmonella typhimurium (TA 102 and TA 2638) or two strains of Escherichia coliHighly genotoxic and cytotoxic to Salmonella typhimurium tester strain NM5004, but not to original host strain TA 1535Emergency medical treatment: see 1-Bromopropane. [HSDB] May cause irritation[MSDSonline]
Hazard Classes and Categories	Acute Tox. 3 (66.7%)
Hazardous Reactivities and Incompatibilities	Violent reaction with magnisium.
Treatment	EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.
健康影響	Bromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (L625, L626, L627)
環境中動態	TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 35(SRC), determined from a structure estimation method(2), indicates that 1,1-dibromoethane is expected to have very high mobility in soil(SRC). Volatilization of 1,1-dibromoethane from moist soil surfaces is expected to be an important fate process(SRC) given an estimated Henry's Law constant of 1.3X10-3 atm-cu m/mole(SRC), using a fragment constant estimation method(3). 1,1-Dibromoethane is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 25.6 mm Hg(4). Biodegradation data are not available for 1,1-dibromoethane(SRC, 2005).

用途

解説

1,1-ジブロモエタン：Br2CHCH3，臭化エチリデンともいう．臭化ビニルに臭化水素を付加させると得られる．液体．沸点112.5 ℃(103.3 kPa)．水と加熱するとアセトアルデヒドになる．

用途

有機合成原料。