8.02540

Cobalt(II) chloride anhydrous

for synthesis

• 同義詞: Cobalt(II) chloride anhydrous, Cobalt dichloride
• 經驗公式（希爾表示法）: Cl₂Co
• CAS號碼: 7646-79-9
• 分子量：: 129.84
• MDL號碼: MFCD00010938
• 分類程式碼代碼: 12352302
• 酶委員會索引編號: 231-589-4
• NACRES: NA.22

屬性

• 等級: anhydrous
• 品質等級: 200
• 形狀: powder
• 效力: 418 mg/kg LD₅₀, oral (Rat)
• mp: 735 °C
• 溶解度: soluble 585.9 g/L
• 密度: 3.36 g/cm³ at 25 °C
• 儲存溫度: 2-30°C
• SMILES 字串: [Co+2].[Cl-].[Cl-]
• InChI: 1S/2ClH.Co/h2*1H;/q;;+2/p-2
• InChI 密鑰: GVPFVAHMJGGAJG-UHFFFAOYSA-L

描述

應用

Cobalt(II) chloride anhydrous (CoCl₂) can be used as a catalyst in organic synthesis for the transformation of the various functional groups. For example, synthesis of esters via cleavage of ethers by acyl chlorides; acylation of alcohols and amines by anhydrides; and regioselective cleavage of oxiranes. It is also used to synthesize mixed acetals by the addition reaction between alcohols and vinyl ethers.
CoCl₂ can be used as a catalyst:

• For the dealkylation of tertiary amines.
• In the synthesis of thioketones and thioaldehydes via thionation of carbonyl compounds in the presence of bis(trimethylsilyl) sulfide.
• In the oxidation of aromatic and aliphatic aldehydes to carboxylic acids in the presence of molecular oxygen and acetic anhydride.
• In the stereoselective opening of epoxides with N-substituted anilines.

CoCl₂ can also be used as:

• A precursor to synthesize magnetic cobalt nanorods via decomposition of the cobalt coordination complex.
• A catalyst to prepare acid anhydrides by the reaction of acid chlorides with carboxylic acids.
• A reagent in the carbon-carbon bond-forming reactions involving active methylene compounds.

分析報告

Assay (argentometric): ≥ 98.0 %
Water (K. F.): ≤ 2.0 %

安全資訊

• 象形圖: GHS05,GHS07,GHS08,GHS09
• 訊號詞: Danger
• 危險聲明: H302 - H317 - H318 - H334 - H341 - H350i - H360F - H410
• 防範說明: P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• 危險分類: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Dam. 1 - Muta. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1
• 儲存類別代碼: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable