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417316039

银虫 (小有名气)

[交流] 【求助】急求药品出处

我现在急需Pluronic P-123 (MW = 5800)请问知情好心人士告诉我哪里可以买的到?
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xzliucheng

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dfq0730(金币+2,VIP+0):thanks 12-16 20:08
417316039(金币+3,VIP+0):谢谢回复 12-20 20:37
这是BASF公司的产品,是表面活性剂。
你用CAS# 9003-11-6去Google搜一下。
Specifications
Color, APHA………………………………….. 120 max.
Water, weight %……………………………… 0.4 max.
pH (2.5% aqueous)………………………….. 6.0 − 7.4
Cloud point (10% aqueous)………………… 85 − 91°C
Typical physical properties
Form…………………………………………… Paste
Average molecular weight…………………... 5750
Specific gravity, 60°/25°C…………………… 1.01
Viscosity, cps at 60°C ……………………… 350
Pour point…………………………………….. 31°C
Cloud point (1% aqueous)………………….. 90°C
Foam height (Ross Miles, 0.1% aqueous
at 50°C)……………………………………. 45 mm
Surface tension (0.1% aqueous)…………… 34 dynes/cm
at 25°C
HLB……………………………………………. 7 − 12
Solubility in water at 25°C…………………… >10%
Wetting, Draves Sink Time
(3-gm hook, 0.1% aqueous at 25°C)…… 35 seconds



Pluronic P-123 (BASF code) is a triblock copolymer, with a formula of HO(CH2CH2O)20(CH2CH(CH3)O)70(CH2CH2O)20H. It has around 5800 Da weight and sold in Aldrich as Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO-PPO0-PEO). Its behavior is similar to that of hydrocarbon surfactants, and will form micelles when placed in a selective solvent such as water. It is capable of forming both spherical and cylindrical micelles


济南伟都化工有限公司 有售?

[ Last edited by xzliucheng on 2009-12-16 at 15:23 ]
搞化工,越做胆子越小。
2楼2009-12-16 15:17:11
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417316039

银虫 (小有名气)

谢谢啦,呵呵不过比较贵啊,我买了250ml,要560块,郁闷
泪可流,辱可忍,脚步不可停!
3楼2009-12-20 20:36:47
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