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Friday, March 20, 2020

The HAWACH bottle-top dispenser is made of Optical glass, Al2O3, ETFE, PFA, FEP, PTFE, platinum-iridium alloy, and PP (hard hat) and it can dispense nearly any laboratory chemical. The notable exceptions are: Sodium azide: Found in many biology labs, and used as a preservative for buffers...

Wednesday, March 18, 2020

Sample vials are widely used in the lab. It is a special appliance qualified for cleaning according to the international standard: ISO3722 “Identification of Cleaning Methods for Hydraulic Transmission and Sampling Containers”. It's different from other liquid samplers, just a drink...

Monday, March 16, 2020

Our products are the things used in the QuEChERS method, including two major categories: extraction boxes and purification boxes; extraction boxes include salt bags and 50ml centrifuge tubes, but due to the high shipping costs of 50ml centrifuge tubes and common in customer laboratories...

Sunday, March 15, 2020

Quantity : 200 Metric - Price : 2.5 USD/Kilogram

Classification: Organic Salt Refractive index: Cas NO.1 7681-53-0 Flash Point Molecular Formula: NaO2P Purity: 99.5% Melting Point: 100 Appearance. odorless white crystals Boiling Point: usage: industrial and medical use Stabilty. Stable. Incompatile with strong oxidizing agents...

Friday, March 13, 2020

HAWACH bottle-top dispenser Take the bottle-top dispenser as an example. It features trouble-free and reliable liquid separation and wide range of fittings for most common bottle sizes. All models are equipped with anti-drip safety valves and fine adjustment mechanisms to ensure repeatability...

Wednesday, January 22, 2020

The sealing property of the headspace vial is better than that of the threaded vial, and the rubber or silica gel has good re-sealing after the puncture, so it is ideal to preserve the reagents. If some of the organic solvents in use will corrode the silicone or rubber bottle pad...

Monday, January 20, 2020

1. Nylon Features: good temperature resistance, can withstand 121°C saturation steam hot pressure disinfection for 30min, the highest operating temperature of 60°C, good chemical stability, can withstand dilute acid, dilute base, , ester, oil, hydrocarbons, halogenated hydrocarbons...

Friday, January 10, 2020

The HAWACH bottle-top dispenser uses an integrated PTFE structure, and the dispensing process contacts the reagent material PTFE. The discharge valve has no spring structure, no corrosion and no risk of metal ion contamination reagents, and is suitable for trace analysis. The reinforced...

Friday, January 03, 2020

The nylon filter membrane is applied to many industries. It may be used for the water filtration in the electronic, microelectronic and semiconductor industry, filtration of tissue culture medium, filtration of drug solution, beverage, and high purification chemical products, and...

Monday, December 16, 2019

How to choose the right bottle-top dispenser Three important factors need to be considered for you to choose the right bottle-top dispenser: volume, liquid type( strong acids, organic solvents, sterile media, trace metal free liquids and saline solutions, etc.), and the operation...

Thursday, December 12, 2019

Hawach bottle-top dispenser is an instrument for measuring liquid medicine. To ensure that your bottleneck dispenser has a long service life, some maintenance, and cleaning work can be done in the following situations: the pipette piston is not flexible; the dispensing of some restrictive...

Wednesday, December 11, 2019

The specific steps are as follows: 1. Clean the glass cylinder. 2. Empty and unscrew the separator from the bottle, and lift the separator upward until the drain pipe leaves the liquid level but is still in the bottle-top dispenser. 3. Touch the inner wall of the bottle carefully...

Wednesday, November 06, 2019

Quantity : 500square - Price : 25usd

Aluminum composite panel or aluminum-plastic panel is a kind of composite new material which has been through surface treatment and a series of technological processing. It's composed of aluminum panels with coating as the surface and PVC plastic panel as the core layer. As the composite...

Sunday, October 13, 2019

Solid phase extraction is a sample preparation method based on the chromatographic analysis. Solid phase extraction includes a solid phase (adsorbent with a certain functional group) and a liquid phase (sample and solvent). The liquid sample passes through a solid phase extraction...

Tuesday, October 08, 2019

The pipette is a kind of common instruments in the labs. And how should the experimenters use the pipette correctly? We will introduce the steps in the follow-up articles. Step 1: Hold the pipette correctly Hold the handle of the pipette with the palm and four fingers, put the index...

Tuesday, October 08, 2019

With the increasing difficulty of detection and the increasing requirement of detection, a large number of analytical instruments have entered the laboratory, and bottle top dispenser is one of them. The characteristics of the bottle top dispenser are described in detail below. 1...

Monday, September 30, 2019

Merits of Flash Column Flash column provided by Hawach scientific provides with many merits and unique properties, which makes it obtain consistent confidence and build a good image in the market. Specific merits are as follows, product model is complete, specifically including 15...

Sunday, September 29, 2019

The specific operation steps of bottle-top dispenser are as follows: (1) Put the dial scale at zero position and cover the nozzle of the bottle-top dispenser pipe cap. (2) Place all bottle-top dispensers and reagent bottles inappropriate size cleaning containers, and then set the...

Thursday, September 26, 2019

It is critical to identify any failure and properly maintain the bottle-top dispenser because it directly contacts with chemical reagents; otherwise, data precision will be greatly affected and safety accidents may even occur. Identification of tightness failures Most failures are...

Monday, September 23, 2019

When the experimenters use the bottle-top dispenser doing experiments, they assemble the pipette, the distribution pipe, and the reagent bottle firstly. And then before separating the liquid, they should remove the bubbles in the bottle-top dispenser in order to ensure the accuracy...

Friday, September 20, 2019

Quantity : 500 - Price : 7000-10000

Coconut oil, made from coconut meat (copra) processing, has a wide application. It can be used in detergents, resin, paint, soap, and other processing industry. Through refining, it can even be edible with high nutritional value. In China's Yunnan, Hainan, Taiwan, coconut planting is wide...

Wednesday, September 18, 2019

Quantity : 20GP - Price : 5USD

Description of Calcium aluminate cement Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral...

Wednesday, September 18, 2019

Quantity : 20GP - Price : 5USD

Description of Calcium aluminate cement Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral...

Wednesday, September 18, 2019

The capsule filter is small in size and mainly used in purification and filtration of chemicals, pharmaceuticals, microelectronic reagents, etc. The filter medium is placed in the interior of the capsule filter in the form of folds, which enlarges the filtering area and ensures the...

Thursday, September 12, 2019

The bottle-top dispenser produced by our company is very ingenious and practical. It occurs a few breakdowns and is easy to maintain because of their simple mechanical structure. Besides, it has a durable and easy-to-clean surface. Points for Attention in Operation Firstly, the bottle-top...

Wednesday, September 11, 2019

Generally, there are five types of filter capsule based on the membrane it contains, which includes PES, PP, PTFE, Nylon and GF type. The former three types are widely applied in various fields and receive great feedback from the users. - PES Filter Capsule - The PES filter capsule...

Tuesday, September 10, 2019

With bottle-top dispenser, the loss of expensive reagents and media messes can be effectually avoided during the transfers. We can find almost the same amounts reproduced for the applications through a direct displacement piston system. The bottle-top dispensers achieve a safer chemical...

Thursday, August 15, 2019

Bottle-top dispenser, also known as bottle-top distributor and bottle-top pipette, is an instrument for accurately measuring liquid chemicals. It is generally divided into automatic bottle-top separator, continuous bottle-top separator, glass separator, bottle-top separator, bottle-top...

Wednesday, August 14, 2019

Syringe filters are available out-of-the-box, no need for membrane changes and cleaning, and allow easy purification or detoxification of various solutions, including cell and microbial media, reagents, and additives, protein solutions and buffers. - Maintenance of a syringe filter - 1...

Friday, August 09, 2019

What is the bottle-top dispenser? During a scientific experiment, a bottle-top dispenser can indicate its excellent precision and high-repetition of separating operation without wasting solvents. While handling with some corrosive liquids or solvents, it provides safety assurance...