398063

重铬酸钠 二水合物

ACS reagent, ≥99.5%

• 别名: 红矾钠
• 线性分子式: Na₂Cr₂O₇ · 2H₂O
• CAS号: 7789-12-0
• 分子量: 298.00
• EC號碼: 234-190-3
• MDL號碼: MFCD00149166
• 分類程式碼代碼: 12352302
• PubChem物質ID: 329755905
• NACRES: NA.21

属性

• 等級: ACS reagent
• 品質等級: 200
• 化驗: ≥99.5%
• 形狀: crystals
• 反應適用性: reagent type: oxidant
• 雜質: ≤0.005% NH₄OH ppt.; ≤0.005% insolubles
• pH值: 3.5 (20 °C, 100 g/L)
• mp: 91 °C (lit.)
• 負離子痕跡: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.01%
• 正離子痕跡: Al: ≤0.002%; Ca: ≤0.003%
• SMILES 字串: O.O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
• InChI: 1S/2Cr.2Na.2H2O.7O/h;;;;2*1H2;;;;;;;/q;;2*+1;;;;;;;;2*-1
• InChI 密鑰: JYDRNIYTFCBIFC-UHFFFAOYSA-N

说明

一般說明

Sodium dichromate dehydrate (SDD), a hexavalent chromium compound is commonly used as an oxidizing agent. Chromium (VI) compounds are genotoxic and group 1 IARC (International Agency for Research on Cancer) carcinogen. SDD is one of the common contaminants found in drinking water. Its toxic effects and carcinogenicity has been studied.

應用

Sodium dichromate dehydrate may be used in preparing Jones reagent which is employed for oxidation reactions. It may be used in the oxidation of arylalkanes.

安全信息

• 象形圖: GHS03,GHS06,GHS08,GHS05,GHS09
• 訊號詞: Danger
• 危險聲明: H272,H301,H312,H314,H317,H330,H334,H340,H350,H360FD,H372,H410
• 防範說明: P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危險分類: Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation
• 儲存類別代碼: 5.1B - Oxidizing hazardous materials
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable