基本情報
- CAS
10294-28-7- 標準SMILES
[Br][Au]([Br])[Br]- InChIKey
OVWPJGBVJCTEBJ-UHFFFAOYSA-K- 分子式
- AuBr3
- 平均分子量
- 436.68 g/mol
- 単同位体質量
- 433.72158
名称と識別子
- 優先名称
- Gold tribromide
- IUPAC
- tribromogold
- 現地名
- 金(III)トリブロミド
- 英語名
- GOLD(III) BROMIDE
- 分子式
- AuBr3
- 分子量
- 436.68
名称と別名
名称をさらに表示
データベース識別子
- CAS
10294-28-7- PubChem CID
- 82525
- DTXSID
DTXSID9065025- ChEBI
CHEBI:30079- EC Number
- 233-654-2
物性
構造計算による物性
- 極性表面積
- 0 Ų
- 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
- 8
物理化学的性質
- 融点
- 160 °C · 160°C (dec.)
- 貯蔵温度
- 2 · under inert gas (nitrogen or Argon) at 2–8 °C
- 溶解性
- 2 O: · H2O: わずかに溶ける(lit.)
- 外見
- 粉
- 色
- オレンジからブラウン
- 水溶解度
- 水にわずかに溶ける。
- InChI
- 1S/Au.3BrH/h;3*1H/q+3;;;/p-3
- InChIKey
- OVWPJGBVJCTEBJ-UHFFFAOYSA-K
- SMILES
- Br[Au](Br)Br
- CAS データベース
- 10294 · 10294-28-7(CAS DataBase Reference)
- EPAの化学物質情報
- Gold bromide (AuBr3) (10294-28-7)
化学的性質
化学的特性Yellowish-gray mass. Decomposes at approximately 165C. Insoluble in water.
安全と法規制
GHS分類
GHS Classification
Danger
H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 43 reports by companies from 2 notifications to the ECHA C&L Inventory.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
危険有害性情報
毒性情報
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.
Health Effects
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)
Toxicity Summary
Bromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (L626, L627, A543)
Signs and Symptoms
Bromine vapour causes irritation and direct damage to the mucous membranes. Symptoms include lacrimation, rhinorrhoea, eye irritation with mucous secretions from the oropharyngeal and upper airways, coughing, dyspnoea, choking, wheezing, epistaxis, and headache. The bromide ion is a central nervous system depressant producing ataxia, slurred speech, tremor, nausea, vomiting, lethargy, dizziness, visual disturbances, unsteadiness, headaches, impaired memory and concentration, disorientation and hallucinations. This is called bromism. (L626, L627)
安全データ
- F
- 8-10-23
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 3260 8/PG 3
- risk_code
- 34
- hazard_code
- C
- safety_code
- 26-36/37/39-45
- hazard_class
- 8
- packing_group
- III
- Hazard Classifications
- Skin Corr. 1B
- ストレージクラス
- 8A - Combustible corrosive hazardous materials
化学と産業
薬理情報
Metabolism/Metabolites
Bromine is mainly absorbed via inhalation, but may also enter the body through dermal contact. Bromine salts can be ingested. Due to its reactivity, bromine quickly forms bromide and may be deposited in the tissues, displacing other halogens. (L626)
用途と製造
応用分野
使用Gold(III) bromide is used as a catalyst in a variety of reactions. It catalyzes the reaction between an enynal unit and carbonyl compounds to form a six-membered cyclic compound. Another catalytic use of gold tribromide is in the nucleophilic substitution reaction of propargylic alcohols, with the gold complex acting as an alcohol-activating agent to facilitate the substitution. It can be used as a testing reagent for the presence of ketamine.
調製方法
純化方法Purify it by adding pure Br2 to the dark powder, securely stopper the container, warm a little and shake while keeping away from light for ca 48hours. Remove the stopper and place it over NaOH until free Br2 is no longer in the apparatus (48-60hours). The bright yellow needles of the tribromide are stable over NaOH in the dark. It is soluble in H2O and in EtOH where it is slowly reduced. Keep it in a cooled, closed container and protect it from light as decomposition causes free gold to be formed. Aurobromic acid can be obtained by adding the calculated amount of conc HBr to AuBr3 (actually Au2Br6) until all dissolves, whereby the acid crystallises out as HAuBr4.5H2O; a deliquescent solid soluble in EtOH with m ca 27o, and store it as above. [Gibson & Colles J Chem Soc 2411 1931, Burawoy & Gibson J Chem Soc 217 1935, Burawoy & Gibson J Chem Soc 219 1935.]
サプライヤー55 社
補足説明
定義Brownish-black powder. Mp 160C with decomposition. Soluble in water and alcohol.
関連反応
化合物ノート
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