聚醚改性七甲基三硅氧烷 (CAS No.27306-78-1)
- 中文别名
- 七甲基三硅氧烷聚醚改性物；聚醚改性三硅氧烷；有机硅表面活性剂；聚醚硅氧烷
- 英文名称
- Polyether-modified heptamethyltrisiloxane
- 所属类别
- 农药化肥原料
- 物化性质
- 无色至浅黄色透明液体。比重(25℃)为1.01±0.03 g/mL，粘度(25℃)为20~60 cps，凝固点低于5℃。折射率(25℃)为1.4445。可分散于水，溶于甲醇、乙醇、异丙醇、丙酮、苯、甲苯、二甲苯等常见溶剂。0.1%水溶液浊点低于10℃，HLB值(亲水亲油平衡值)为5~8，0.1%水溶液表面张力(25℃)为20.5 mN/m。在中性水溶液(pH 6.5~7.5)中长时间稳定；pH为5时一周后降解一半，pH为3时24小时后基本降解；碱性条件下水解作用同样明显。本品在自然环境中易降解、无残留。
- 外观
- 无色至浅黄色透明液体
English description（英文原文，共 1888 字符）
Product Name:Polyether-modified heptamethyltrisiloxane
English Name:Polyether-modified heptamethyltrisiloxane
CAS No.:27306-78-1
Aliases:Heptamethyltrisiloxane polyether-modified, Polyether-modified trisiloxane, Silicone surfactant, Polyether siloxane
Physical Properties:Colorless to light yellow transparent liquid. Specific gravity (25°C): 1.01±0.03 g/mL. Viscosity (25°C): 20~60 cps. Freezing point: below 5°C. Refractive index (25°C): 1.4445. Dispersible in water; soluble in common solvents such as methanol, ethanol, isopropanol, acetone, benzene, toluene, and xylene. Cloud point (0.1% aqueous solution): below 10°C. HLB value: 5~8. Surface tension of 0.1% aqueous solution (25°C): 20.5 mN/m. Stable for extended periods in neutral aqueous solutions (pH 6.5~7.5); at pH 5, half degrades within one week; at pH 3, degradation to 0.1% of the original occurs after 24 hours. Hydrolysis is also pronounced under alkaline conditions. This product readily degrades in the natural environment without residue.
Uses:This product is a polyether-modified silicone surfactant primarily used as an agricultural spray adjuvant. It is added before spraying insecticides, herbicides, plant growth regulators, and foliar fertilizers at a dosage of 0.03%~0.05%. It significantly reduces the surface tension of spray solutions, enhances wetting, spreading, and adhesion of the liquid on target surfaces, and promotes penetration of the active ingredients through stomata into plant tissues, thereby improving efficacy and rainfastness. It has low toxicity and is readily degradable in the natural environment, making it environmentally friendly.
Technical Specifications:
Appearance: colorless to light yellow transparent liquid
Specific gravity (25°C): 1.01±0.03 g/mL
Viscosity (25°C): 20~60 cps
Refractive index (25°C): 1.4445
Surface tension of 0.1% aqueous solution (25°C): 20.5 mN/m
English Name:Polyether-modified heptamethyltrisiloxane
CAS No.:27306-78-1
Aliases:Heptamethyltrisiloxane polyether-modified, Polyether-modified trisiloxane, Silicone surfactant, Polyether siloxane
Physical Properties:Colorless to light yellow transparent liquid. Specific gravity (25°C): 1.01±0.03 g/mL. Viscosity (25°C): 20~60 cps. Freezing point: below 5°C. Refractive index (25°C): 1.4445. Dispersible in water; soluble in common solvents such as methanol, ethanol, isopropanol, acetone, benzene, toluene, and xylene. Cloud point (0.1% aqueous solution): below 10°C. HLB value: 5~8. Surface tension of 0.1% aqueous solution (25°C): 20.5 mN/m. Stable for extended periods in neutral aqueous solutions (pH 6.5~7.5); at pH 5, half degrades within one week; at pH 3, degradation to 0.1% of the original occurs after 24 hours. Hydrolysis is also pronounced under alkaline conditions. This product readily degrades in the natural environment without residue.
Uses:This product is a polyether-modified silicone surfactant primarily used as an agricultural spray adjuvant. It is added before spraying insecticides, herbicides, plant growth regulators, and foliar fertilizers at a dosage of 0.03%~0.05%. It significantly reduces the surface tension of spray solutions, enhances wetting, spreading, and adhesion of the liquid on target surfaces, and promotes penetration of the active ingredients through stomata into plant tissues, thereby improving efficacy and rainfastness. It has low toxicity and is readily degradable in the natural environment, making it environmentally friendly.
Technical Specifications:
Appearance: colorless to light yellow transparent liquid
Specific gravity (25°C): 1.01±0.03 g/mL
Viscosity (25°C): 20~60 cps
Refractive index (25°C): 1.4445
Surface tension of 0.1% aqueous solution (25°C): 20.5 mN/m
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常见问题
- 聚醚改性七甲基三硅氧烷的 CAS 号是多少？
- 聚醚改性七甲基三硅氧烷的 CAS 号是 27306-78-1。
- 聚醚改性七甲基三硅氧烷的英文名称是什么？
- 聚醚改性七甲基三硅氧烷的英文名称为 Polyether-modified heptamethyltrisiloxane。
- 聚醚改性七甲基三硅氧烷还有哪些别名？
- 聚醚改性七甲基三硅氧烷又称 七甲基三硅氧烷聚醚改性物、聚醚改性三硅氧烷、有机硅表面活性剂、聚醚硅氧烷。
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