2-メチルペンタン-2,4-ジオール 化学特性,用途語,生産方法
外観
無色～ほとんど無色, 澄明の液体
定義
本品は、次の化学式で表される二価アルコールである。
溶解性
水に可溶, エタノールに混和。水及びエタノールに極めて溶けやすい。
用途
ドライクリーニング用洗剤、油性オイル、工業用クリーニング剤、水圧流体などに混合してカップリング剤として使用 潤滑油、切削油用、均質剤、安定剤。木材などの殺菌剤又は防腐剤用の溶剤 コルク、カゼイン、皮革、紙、繊維などの浸透剤及び軟化剤 ブレーキオイル用溶剤、香料、感光紙、塗料用高沸点溶剤、化粧品原料
化粧品の成分用途
減粘剤、溶剤、香料
効能
湿潤剤, 溶解剤
化学的特性
Hexylene Glycol is an oily colorless liquid with a mild sweet odor. It is an oxygenated solvent derived from acetone which has two alcohol functions. It has a low evaporation rate and it is completely miscible with water.
使用
(^+)-2-Methyl-2,4-pentanediol is used to control the flow properties of industrial products such as paints, coatings, cleansers, solvents, and hydraulic fluids. It acts as a thickening agent in cosmetic products. It serves as a coupling agent and an additive to hydraulic fluids, inks and cement. It is also employed as a blood volume expander. Further, it is used as a solvent for cleaning and colorant products. In addition to this, it is used in laboratory studies as a precipitant and cryoprotectant in protein crystallography.
調製方法
2-Methyl-2,4-pentanediol is prepared commercially by the
catalytic hydrogenation of diacetone alcohol . It is used
as a chemical intermediate, a selective solvent in petroleum
refining, a component of hydraulic fluids, a solvent for inks,
and as an additive for cement .
Industrial exposure is likely to be from direct contact or
from inhalation, particularly if the material is heated.
定義
ChEBI: A glycol in which the two hydroxy groups are at positions 2 and 4 of 2-methylpentane (isopentane).
一般的な説明
Oily colorless liquid with a mild sweet odor. Floats and mixes slowly with water.
空気と水の反応
Hygroscopic. Water soluble [Hawley]
反応プロフィール
2-Methyl-2,4-pentanediol is incompatible with the following: Strong oxidizers, strong acids [Note: Hygroscopic (i.e., absorbs moisture from the air).] .
危険性
Toxic by ingestion and inhalation; irritant to
skin, eyes, and mucous membranes. Combustible.
健康ハザード
Irritation of eyes, nose and throat; headache, dizziness, and nausea.
化学反応性
Reactivity with Water No reaction; Reactivity with Common Materials: Can catch fire when in contact with porous materials such as wood, asbestos, cloth, soil, or rusty metals; Stability During Transport: Stable at ordinary temperatures, however when heated this material can decompose to nitrogen and ammonia gases. The decomposition is not generally hazardous unless it occurs in confined spaces; Neutralizing Agents for Acids and Caustics: Flush with water and neutralize the resulting solution with calcium hypochlorite; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
純化方法
Dry the diol with Na2SO4, then CaH2 and fractionally distil it under reduced pressure through a packed column, taking precautions to avoid absorption of water. [Beilstein 1 IV 2565.]
2-メチルペンタン-2,4-ジオール 上流と下流の製品情報
原材料
準備製品
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