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.