乳化剂 S-40

一、 别名 斯盘 -40 ;Span-40; 山梨醇酐单棕榈酸酯
二、 英文名称： Emulsifier S-40
三、分子式 C 22 H 43 O 6
四、分子量 403.56
五、性质 外观为黄至黄色蜡状固体，少量溶于异丙醇、二甲苯、在四氯乙烯中呈浑浊状，不溶于水，在水中分散呈乳状溶液。 HLB 为 6.7 。
六、质量标准
外观 黄至黄色蜡状固体
酸值 /(mg KOH/g) ≤ 8
皂化值 /(mg KOH/g) 140~150
羟基值 /(mg KOH/g) 225~290
熔点 / ℃ 45 ± 3
水份 /% ≤ 2.0
七、用途 在医药、化妆品、纺织工业中用作乳化剂和分散剂。此外还可用作印刷油墨的乳化剂，在聚合中对乳液有稳定的乳化效果。
八、包装及贮存 净重 25kg 编织袋内衬薄膜袋包装，宜在通风、阴凉处贮存。
Emulsifier S-40(Span-40)
1.Molecular formula : Emulsifier S-40
2.Molecular weight : 403.56
3.Characteristics :This product is a kind of wax-like soled with its color ranging from snuff color to brown , Without dissolving in water , it disperses in it to form milky solution. Its HLB is 6.7
4. Quality standard
Outward appearance:Wax-like solid with the color ranging from yellow to brown
Acid value/(mg KOH/g) ≤ 7 Saponification value/(mg KOH/g) 140~150
Hydroxide radicle value/(mg KOH/g) 255~290
Melting point / ℃ 45 ± 3
Moisture content/% ≤ 2.0
5. Usage: This product is mainly used in textile as well as pharmacutical industry. It can be used as emulsifier and disperser in cosmetic and printing ink . In polymerization it can also stabilize emulsion effectively.
6. Package and storage: This product, with its net weight 25 kg ,should be packed in plastic film package with inner weave bag . You are advised to keep it in airiness and coolness.