S5505 表面活性剂Silwet L-77

转化试验中Silwet-L77的作用

Silwet-L77GX有机硅表面活性剂，能够极大的降低水的表面张力（水的表面张力为72.4mN/m，0.1%的Silwet-L77系列有机硅溶液的表面张力约为21mN/m）,这使Silwet-L77有机硅溶液可轻易湿润几乎所有种类的叶面,相对于传统助剂,显著提高了在靶标生物的覆盖面.同时，Silwet-L77有机硅助剂具有极强的耐水冲刷及渗透能力。Silwet-L77是拟南芥及其它作物常用的转基因用表面活性剂。

价格:

S5505-10ml 350.00 SL77080596-10ml 550.00 SL77080596-35ml 1550.00

购买方法:

: 86515144 88621284

Silwet L-77 is a chemical mixture of polyalkyleneoxide modified heptamethyltrisiloxane （84%） and allyloxypolyethyleneglycol methyl ether （16%）. It is an essential infiltration media ingredient for all Agrobacterium-based transformations of Arabidopsis and other plants.

10 mL and 35 mL are sufficient quantity to prepare 33 L and 115 L of vacuum infiltration medium when used at the recommended rate of 0.03%, v/v, respectively.

SILWET L-77 is a unique surfactant designed to improve the spreading

and wetting properties of pesticide spray mixes. SILWET L-77 utilizes

unique organosilicone chemistry which provides the most complete

coverage possible. SILWET L-77 can improve cuticular penetration of

plant surfaces by the spray mix. Optimum application and resultant

effects can be influenced by many factors. Consequently, it is

recommended that careful observation of the spray deposit be made and

adjuvant rates adjusted accordingly. Applications should be made to

ensure thorough coverage without excessive run-off.

TYPICAL PROPERTIES

Physical appearance Clear, light amber liquid

Pounds per gallon 8.370

Specific gravity 1.0 - 1.01

pH （1.0%） 6.0 - 7.0

Freeze Point less than 35 degrees F

Surface Tension （0.125% v/v） less than 25 dynes/cm

Contact Angle （0.125% v/v） less than 5 degrees F

Draves Wet Time （0.125% v/v） less than 15.0 seconds

GENERAL PRODUCT INFORMATION

（1） SILWET L-77 contains organosilicone surfactants designed to

provide superior wetting and coverage.

（2） SILWET L-77 can improve water penetration of hard to wet soils

and provide more uniform distribution of applied moisture.

（3） SILWET L-77 is generally compatible with pesticides and

fertilizer solutions.

（4） SILWET L-77 may cause excessive foam if not properly added to the

spray tank. To minimize foam generation, add SILWET L-77 to the

tank after all other ingredients are added. If foaming is still

a concern, add an antifoaming agent, such as FOAMBUSTER or COMBAT

PLUS to the tank prior to adding SILWET L-77.

（5） Do not allow spray mixes containing SILWET L-77 to sit over 36