435597

发烟硫酸

reagent grade, 20%, as free SO₃

• 别名: 发烟硫酸
• 线性分子式: H₂SO₄ · (SO₃)_x
• CAS号: 8014-95-7
• 分子量: 98.08
• Beilstein: 2037554
• MDL號碼: MFCD00137792
• 分類程式碼代碼: 12352106
• PubChem物質ID: 329756351
• NACRES: NA.21

属性

• 等級: reagent grade
• 品質等級: 100
• 蒸汽密度: 3 (vs air)
• 蒸汽壓力: 2 mmHg ( 25 °C)
• 形狀: liquid
• 濃度: 20% (free SO₃)
• 密度: 1.925 g/mL at 25 °C (lit.)
• SMILES 字串: O=S(=O)=O.OS(O)(=O)=O
• InChI: 1S/H2O4S.O3S/c1-5(2,3)4;1-4(2)3/h(H2,1,2,3,4);
• InChI 密鑰: HIFJUMGIHIZEPX-UHFFFAOYSA-N

说明

一般說明

Fuming sulfuric acid is an inorganic acid, that can be produced by the addition of sulfur trioxide to concentrated sulfuric acid. It is commonly used as a sulfonating reagent in sulfonation reactions. When fuming sulfuric acid is employed as reaction medium, bromination takes place only in the pyridine nucleus of isomeric methylpyridines and 2,6-dimethylpyridine. It can also oxidize fullerene C₆₀ to form fullerene polymers.

應用

Fuming sulfuric acid may be used as a sulfonating agent for the synthesis of:

• sulfonated poly(1,4-phenylene sulfide)
• water-soluble polyphosphazene polyelectrolyte
• sulfated graphene

安全信息

• 象形圖: GHS06,GHS05
• 訊號詞: Danger
• 危險聲明: H314,H330,H335
• 防範說明: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危險分類: Acute Tox. 2 Inhalation - Skin Corr. 1A - STOT SE 3
• 標靶器官: Respiratory system
• 安全危害: EUH014
• 儲存類別代碼: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable