Terephthalic acid is a benzenedicarboxylic acid carrying carboxy groups at positions 1 and 4.
定义
Terephthalic acid is a benzenedicarboxylic acid carrying carboxy groups at positions 1 and 4. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and isophthalic acids. It is a conjugate acid of a terephthalate(1-).
来源: PubChem
美国FDA 物质登记 · UNII 6S7NKZ40BQ · 登记名称 Terephthalic acid · 单一化学物质
Terephthalic Acid is the organic compound that conforms to the formula
化妆品中的作用
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
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
- CAS No.化学物质登记号
- 100-21-0
- DTXSID美国EPA化学品编号
- DTXSID6026080
- DTXCID美国EPA化合物编号
- DTXCID006080
- IUPAC
- Benzene-1,4-dicarboxylic acid
- 分子式
- C8H6O4
- 分子量
- 166.132 g/mol
实测物性
- 性状
- Terephthalic acid is a white powder. (NTP, 1992) · Liquid, Dry Powder, Other Solid, Large Crystals, CBI
- 沸点
- greater than 572 °F at 760 mmHg (sublimes without melting) (NTP, 1992) · >572 °F (sublimes)
- 熔点
- Sublimes (NTP, 1992) · 427 °C (sealed tube)
- 溶解性
- Insoluble (NTP, 1992) · Insoluble in chloroform, ether, acetic acid, slightly soluble in alcohol, soluble in alkalies
- 密度
- 1.51 (NTP, 1992) - Denser than water, will sink · Specific gravity = 1.522 at 25 °C
- 解离常数
- The dissociation constants pK1 and pK2 for terephthalic acid at 25 °C are 3.54 and 4.46, respectively.
- pH
- 2.16
- 熔点/凝固点
- &, gt, 300 ℃
- 闪点
- 260 ℃
- 燃烧或爆炸范围上限/下限
- - / 0.05 g/ℓ (d10=32.75 um,d50=109.76um,d90=228.1um(BS EN 14034-3))
- 蒸气压
- 0.0000092 ㎜Hg (25℃)
- 溶解度
- 0.28 g/100㎖ (20℃)
- 比重
- 1.51
- 正辛醇/水分配系数(Kow)
- 1.96
- 自燃温度
- 496 ℃
- 分子量
- 166.1
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 14 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。
- Monomers3
- Intermediate3
- Solvent2
- Processing aids not otherwise specified2
- Viscosity modifier2
- Catalyst1
- Plasticizer1
来源: 美国EPA CompTox
刺激与致敏试验记录
记录有皮肤试验 6 项、眼部试验 2 项。
试验结论基本一致(100%)。 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 8 项试验
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to - Not classified
Skin Irritation · Screening - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: DoT corrosion screen according to - SkinSens1
Skin Sensitization · QSAR Predicted - Classification not possible
Skin Sensitization · Screening - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to - Category 2B
Eye Irritation · Screening
来源: 美国EPA CompTox
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