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Hydroxyethyl cellulose (HEC) polymer is a hydroxyethyl ether of cellulose, obtained by treating cellulose with Sodium Hydroxide and reacting with ethylene oxide. HEC polymers are largely used as water-binder and thickening agent in many industry applications, that is, personal care products, pharmaceutical formulations, building materials, adhesives, etc., and as stabilizer for liquid soaps. They are available as white free-flowing granular powders that easily dissolve in cold and hot water to give transparent solutions with varying viscosities depending on polymer concentration, type and temperature.

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China

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Appearance: White to off-white solid Solubility: Soluble in Water and Methanol pH value of 5%(wt/wt) water solution: 5.00-7.00 Melting Point: 110.0℃-114.0℃ Purity: 98.00%min by HPLC Specific Optical Rotation: -34°~-29° Identification by IR: complies to standard UV Absorption: Abs. @ 300 nm, 0.13max Abs. @ 400 nm, 0.06max Application: IPTG [367-93-1] is an extremely potent inducer that is not metabolized by bacteria and is very stable, and is therefore widely used in laboratories for cloning experiments that require induction of beta-galactosidase activity. It is often used in combination with X-Gal or Bluo-Gal for blue-white screening of recombinant bacterial colonies that induce expression of the lac manipulator in E. coli. IPTG binds to the lacI blocker protein and alters its conformation to prevent inhibition of the beta-galactosidase coding gene lacZ

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China

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Product Identification Chemical name: Trimethyloxonium Tetrafluoroborate Synonyms: Trimethoxonium fluoroborate CAS No.: 420-37-1 Molecular formula: C3H9OBF4 Molecular weight: 147.91 Boiling point: 200 °C Specification Appearance: White to off-white solid Purity: 98.00%min by titration Moisture: 0.50%max by KF Clarity of solution: 2.5%(wt%) water solution colorless and clear Package Regular Packing: N.W 1kg/foil vacuum bag Sample Packing: 0.1kg-1kg foil vacuum bag or under request Transportation Information Classification: 8 UN: 3261 PG: II HS Code: 2942000000 Status & Application Commercial available Trimethyloxonium Tetrafluoroborate [420-37-1] is a strong electrophilic methylation reagent for the methylation of hydroxyl groups. It can be used for complex multi-step synthesis of marine natural products.

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China

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Yellow needle-like crystalline powder. Stable to heat, decomposition temperature 314 ° C. It can improve the light resistance of the pigment in food and prevent the change of the flavor of the food. It will change color when it meets metal ions. Slightly soluble in water, soluble in alkaline aqueous solution. Quercetone and its derivatives are a class of flavonoid compounds widely found in various vegetables and fruits. Such as onions, sea buckthorn, hawthorn, alfalfa, tea and so on. It has anti-free radical, anti-oxidation, anti-bacterial, anti-viral and anti-allergic effects. When used in lard, etc., various antioxidant indexes are similar to BHA or PG.

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China

This commercial hot water heat pump is the best solution for hot water supply of commercial project, and can work with advantages of high safety, stability, much convenience, energy saving, and environment friendly, which assures 24 hours comfortable hot water using. It is widely used in hot water project of school, hotel, hospital, supper market and other large building, which needs large water volume supply. Main Features 1) Copeland scroll compressor, quiet and high efficiency. 2) High efficiency heat exchanger. 3) 600 stage adjustment precision electronic expansion valve. 4) Schneider electrical components. 5) Intelligent controlling system. 6) Intelligent EE valve, excellent efficiency at different ambient temp. 7) Easy installation and LCD operation. 8) Automatically defrosting. Optional: R410a, R22, R407c refrigerant is available.

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China

NCS-IF105 converter receives 0~20mA or 4~20mA analog signal (4 channels) and converts into fieldbus signal. NCS-FI105 converter uses digital communication technology, and makes the interface between field device and controller easier, and reduces the expense of installation and maintenance

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