PEG 400 Polyethylene Glycol 400 Non-ionic Type Surfactant

PEG 400 Polyethylene Glycol 400 CAS 25322-68-3 Surfactant PEG 600 polyethylene glycol in Leather Auxiliary Agents Polyethylene Glycol 400 Contact Mitchell: Whatsapp +8618124076819 Skype: hk@chembj.com Quick Details: Classification:Chemical Auxiliary Agent CAS No.:25322-68-3 Other Names:Poly...
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Product Details

PEG 400 Polyethylene Glycol 400 CAS 25322-68-3 Surfactant PEG 600 polyethylene glycol in Leather Auxiliary Agents 

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Quick Details:

Classification:Chemical Auxiliary Agent

CAS No.:25322-68-3

Other Names:Poly ethylene glycol

MF:HO(CH2CH2O]nH

EINECS No.:203-473-3

Purity:99.9%

Grade:  Pharmaceutical Grade

Place of Origin:ShenZhen, China (Mainland)

Type:Non-ionic

Usage:Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals, heat carrier/solubilizing agent/plasticizing agent/thickening agent

Brand Name:NT-ITRADE

Model Number:PEG 400

Appearance:Colorless liquid

Colour(Pt-Co):≤40

Hydroxyl value(mgKOH/g):255~311

Molecular Weight:360~440

pH:5.0~7.0

Water content(% m/m):≤0.5

Shell Life:two years

solubility:Soluble in water/organic solvent


Product introduction:

Series products are non-toxic, without excitant, slightly bitter taste, has a good solubility in water, and good intermiscibility with many organic components. They have excellent lubricity, moisturizing, dispersion, bonding agent, antistatic agent and softening agent, etc., in cosmetics, pharmaceutical, chemical fiber, rubber, plastic, paper, paint, electroplating, pesticide, metal processing and food processing industries in all has the extremely widespread application.

Performance and use:In the pharmacy used as a dripping pill carrier, clear bowel and costive laxative.In ointment,suppositories and  tablets used as disintegrant,lubricant,cementing substance and coating agent. The injection with water as menstruum was made into stable injection that used as solid dispersion camer and micro-capsule stuff or sustained release agent. In Chinese traditional medicine pills,it used as coating material.In medical soft capsule,it used as the compound of sterides.In drug analysis,it used as sensitizer dispersant and stabilizing agent,and it also used as the lubricant of surgical suture and preservatives of pathology sample.


Application: 

 Be used in pharmaceuticals, cosmetics, chemical engineering, rubber, metal finishing, pesticide, pigment and spinning & weaving fields. It is also one of the main materials of ester type surface active agent. 


Packaging:
PEG200-1000: Iron or plastic barrel. Net weight 50Kg, 200Kg. 
PEG2000-8000: Plastic woven bag lined with plastic bag or compound bag. Net weight 25kg.

Specification:                                                                     

Items of Analysis

Index

Appearance

Colorless transparent liquid

Content

≥99.99%

Benzene

≤0.1%

Chlorobenzene

≤0.3%

Water content(m/m)

≤0.5%

Colour(Pt-Co)

≤40

Diphenyl Sulfide

≤0.1%

Diphenyl Disulfide

≤0.3%

Serial product parameters:                                        

Type

Appearance

(25℃)

Colour

(Pt-Co)

Hydroxyl value (mgKOH/g)

Molecular  Weight

PH

PEG 200

Colorless liquid

≤40

510~623

180~220

5.0~7.0

PEG 300

≤40

340~416

270~330

PEG 400

≤40

255~311

360~440

PEG 500

≤40

205~280

480~530

PEG 600

≤40

170~208

540~660

PEG 800

White paste

≤40

127~156

720~880

PEG 1000

≤40

102~125

900~1100

PEG 1500

White solid

≤40

68~84

1350~1650

PEG 2000

White flake

≤50

51~63

1800~2200

PEG 3000

≤50

34~42

2700~3300

PEG 3350

≤50

32~40

3200~3450

PEG 4000

≤50

26~32

3600~4400

PEG 6000

≤50

16~21

5400~7000

PEG 8000

≤50

12~16

7200~8800

PEG10000

≤50

8~11

8600-10500

PEG20000

White power

≤50

-----

18500-22000


Storage:

This product does not belong to dangerous chemicals. Store in a cool, dry, ventilated place. Avoid moisture, direct sunlight and collision. Handle with care.



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Polyethylene glycol, or PEG for short, also macrogol in pharmacy, is a liquid or solid, water-soluble and non-toxic polymer with the general empirical formula C2nH4n + 2On + 1, depending on the chain length. Because of these properties, it is used in medicine, as a drug carrier in pharmacy, in industrial applications, in cell biology research and in cosmetic products. PEG has different properties depending on the chain length and the resulting molar mass.


The repeating unit of the linear polymer is (-CH 2 -CH 2 -O-), with a molar mass of about 44 g · mol-1. Chemically, it is a polyether.


Nomenclature 

For PEG with a mean molecular weight of 200 to 35,000 g / mol, the term polyethylene glycols has become common. Products with higher molecular weights (from about 35000 g / mol) are referred to as polyethylene oxide, since these products neglect the influence of the terminal hydroxyl groups. As an abbreviation, the term PEG or macrogol is used together with a numerical value indicating the average molecular weight.


Properties

Consistency 

Polyethylene glycols having an average molecular weight between 200 g / mol and 400 g / mol are non-volatile liquids at room temperature. PEG 600 has a melting range of 17 to 22 ° C and thus a paste-like consistency. At molecular weights above 3000 g / mol, the PEGs are solid substances and are sold as flakes or powders. Hardness and melting range increase with increasing molecular weight. By mixing a solid (PEG 1500) with a liquid PEG, a water-soluble product of ointment-like consistency can be prepared.


Water Solubility 

The most important property of all polyethylene glycols is their solubility in water. Liquid PEGs are miscible with water in any proportion. Even a PEG 8000 can still produce 50 percent solutions. This property is supported by the use of macrogol (PEG 3350) as a laxative.

Hygroscopicity 

The liquid PEGs are hygroscopic. The ability to absorb water decreases with increasing molecular mass.


Volatility and thermal stability

PEGs are non-volatile, a fact that is important in their use as plasticizers or humectants. At temperatures above 150 ° C, thermal decomposition occurs, which is associated with weight loss because of the volatile decomposition products. Applications at higher temperatures necessitate the use of antioxidants.


Physiological properties 

The polyethylene glycols have exceptionally low toxicity levels (acute and chronic oral toxicity, embryotoxicity, skin tolerance). They have therefore been used for decades in cosmetics, food and pharmaceutical preparations and are also listed in all relevant pharmacopoeias. The WHO has set a permitted daily dose of PEG in foods of 10 mg / kg body weight.


Ecological properties 

The biodegradability of the polyethylene glycols decreases with increasing average molecular weight. Until PEG 1500, however, they are considered biodegradable. The degradation of other substances is not affected by the PEG. Even 1 percent solutions are not toxic to fish and microorganisms. In Germany, the PEG are classified in water hazard class (WGK) 1. All polyethylene glycols can easily be thermally eliminated (burnt).


Preparation and restoration

With the help of PEG organic objects (fresh preparations, long wood soaked in water) can be converted to dry preparations. The originally moist objects (in water, alcohol or formalin) are either soaked for a long time or in a vacuum in a PEG solution. Thanks to the use of different PEG molecule sizes, most of the original liquid is replaced by the PEG. In the modern animal preparation, a mixing process is used due to the shrinking due to the drying, whereby classical methods of preparation are included.


In the paleontological preparation, subfossil fossils (for example, ice age finds) are treated with PEG. These fossils are very susceptible to climatic fluctuations and decompose z. B. by the resulting stresses during drying. Here we work only with a solid PEG-type, which replaces the water in the fossils via the path of diffusion. The PEG solidifies instead of the otherwise evaporating water and prevents the destructive tensions. The long-term experience with PEG preservation shows that this method promises the best results for this difficult-to-preserve material.

 

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