47676

二甲醇缩甲醛

absolute, over molecular sieve (H₂O ≤0.01%), ≥99.0% (GC)

• 同義詞: 二甲氧基甲烷, 甲缩醛
• 線性公式: CH₂(OCH₃)₂
• CAS號碼: 109-87-5
• 分子量：: 76.09
• Beilstein: 1697025
• EC號碼: 203-714-2
• MDL號碼: MFCD00008495
• 分類程式碼代碼: 12352100
• PubChem物質ID: 57651079
• NACRES: NA.22

屬性

• 等級: absolute
• 品質等級: 100
• 化驗: ≥99.0% (GC)
• 品質: over molecular sieve (H₂O ≤0.01%)
• 折射率: n20/D 1.354
• 密度: 0.860 g/mL at 20 °C (lit.)
• 官能基: acetal; ether
• SMILES 字串: COCOC
• InChI: 1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3
• InChI 密鑰: NKDDWNXOKDWJAK-UHFFFAOYSA-N

描述

一般說明

Formaldehyde dimethyl acetal (FDA, FDMA, FADMA, dimethoxymethane, DMM, methylal) is a biodegradable dimethyl acetal. It has been synthesized by condensing formaldehyde with methanol in the presence of acid catalyst. It is amphiphilic in nature with low viscosity, surface tension and boiling point. It is a flammable, highly volatile solvent with excellent dissolving power. It is reported to form trimethylorthoformate by anodic methoxylation in basic methanol.

應用

Formaldehyde dimethyl acetal may be used in the following studies:

• Synthesis of methoxymethyl (MOM) ethers.
• As an external cross-linker to form microporous polymers.
• Dehydration of biological samples for scanning electron microscopy (SEM).

安全資訊

• 象形圖: GHS02
• 訊號詞: Danger
• 危險聲明: H225
• 防範說明: P210 - P233 - P240 - P241 - P242 - P243
• 危險分類: Flam. Liq. 2
• 安全危害: EUH019
• 儲存類別代碼: 3 - Flammable liquids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: -0.4 °F - closed cup
• 閃點（°C）: -18 °C - closed cup
• 個人防護裝備: Eyeshields, Faceshields, Gloves