成分词典

PENTANEDIONE

Acetylacetone is a beta-diketone that is pentane in which the hydrogens at positions 2 and 4 are replaced by oxo groups.

定义

Acetylacetone is a beta-diketone that is pentane in which the hydrogens at positions 2 and 4 are replaced by oxo groups. It is a conjugate acid of an acetylacetonate.

来源: PubChem

美国FDA 物质登记 · UNII 46R950BP4J · 登记名称 ACETYLACETONE · 单一化学物质

来源: 美国FDA 物质识别码（UNII）

Pentanedione is the organic compound that conforms to the formula

化妆品中的作用

使其附着于皮肤或表面ADHESIVE

安全与法规参考

未列入韩国有毒物质 GHS 分类 · 现有化学物质

来源: 韩国有毒物质 GHS 信息（环境公团）

详细资料——标示名称、识别编号、物性、试验记录、文献

别名和识别信息

PENTANEDIONEINCI2,4-Pentanedione同义名

CAS No.化学物质登记号: 123-54-6
EC No.欧盟化学品目录编号: 204-634-0
DTXSID美国EPA化学品编号: DTXSID4021979
DTXCID美国EPA化合物编号: DTXCID601979

IUPAC: Pentane-2,4-dione
分子式: C5H8O2
分子量: 100.117 g/mol

实测物性

性状: Pentane-2,4-dione appears as a colorless or yellow colored liquid. Less dense than water. Vapors are heavier than air. Used as a solvent in paints and varnishes. · Liquid, CBI
气味: Pleasant odor · Mild ketone-like odor
沸点: 284.7 °F at 760 mmHg (USCG, 1999) · 138 °C
熔点: -10.3 °F (USCG, 1999) · -23 °C
溶解性: In water, 166,000 mg/L at 20 °C · One part dissolves in about 8 parts water
密度: 0.975 at 68 °F (USCG, 1999) - Less dense than water, will float · 0.9721 at 25 °C/4 °C
稳定性: Stable under recommended storage conditions.
黏度: 0.6 mPa.s at 20 °C
解离常数: pKa = 8.93
颜色: 无色
嗅觉阈值: 0.01 ppm
熔点/凝固点: -23 ℃
初沸点和沸程: 139~140 ℃
闪点: 34 ℃(c.c.)
蒸发速率: 0.75
燃烧或爆炸范围上限/下限: 11.6 / 2.4 %
蒸气压: 0.93 ㎪ (20℃)
溶解度: 16.6 g/100㎖ (20℃)
蒸气密度: 3.5
比重: 0.9721 (25℃)
正辛醇/水分配系数（Kow）: 0.4
自燃温度: 340 ℃
分子量: 100.12

这是对物质本身测得的数值。韩国安全保健公团（KOSHA）的资料仅供编写和审核安全数据表参考，并非原料商品的规格。

来源: PubChem · 韩国安全保健公团安全数据表

产品实际使用的用途

这是向美国 EPA 申报含该成分的 22 款产品的用途。其中包括化妆品以外的产品，排在前几行的即为该成分的主要用途。

No specific technical function6
Solvent4
Chemical reaction regulator4
Processing aids not otherwise specified3
Corrosion inhibitor2
Surface modifier1
Hardener1
Intermediate1

来源: 美国EPA CompTox

刺激与致敏试验记录

记录有皮肤试验 5 项、眼部试验 4 项。

归类为中等1 项归类为低2 项

各项试验结论不一（最多的结论占 33%），因此不能断定该成分有刺激性。这是对原料本身的试验记录，与成品中所含浓度下的刺激性不同。

查看全部 9 项试验

Classification not possible
Skin Sensitization · Screening
Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Not classified
Skin Irritation · Screening
Moderate or Mild Irritation
skin irritation: in vivo · Screening · other guideline: as stated in report according to
Category 6.3B (Category 3)
Skin Irritation · Read Across
Category 2B
Eye Irritation · Screening
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Moderate or Mild Irritation
eye irritation: in vivo · Screening · other guideline: as stated in report according to
Moderate or Mild Irritation
eye irritation: in vivo · Screening · EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) equivalent or similar to