Why The Experimenters Should Choose Bottle-Top Dispenser?
The bottle-top dispenser is divided into three types: basic type, organic type, and hydrofluoric acid type, which has covered all the solvents in the laboratory.
The basic type is suitable for a wide range of reagents, including general acid-base solution, low concentration of non-oxidizing strong acid and strong base, such as H3P04/HCI/H2SO4/NaCI and so on. The maximum pressure resistance is 500mbar, the maximum solution viscosity is 500mm 2 / s, and the maximum liquid density is 2.2 g / cm3.
The organic type is suitable for a high concentration of strong acid solutions and a wide range of organic solvents, such as trifluoroacetic acid, chlorine-containing fluorine organic solvents, and peroxide. The maximum pressure resistance is 500mbar, the maximum solution viscosity is 500mm / s, the maximum liquid density is 2.2g / cm3.
Hydrofluoric Acid Type
The hydrofluoric acid type is only suitable for HF solution. Because of the strong corrosion of HF, the piston of the distributor is the ceramic piston, and the suitable reagent bottle should be plastic material with a maximum pressure resistance of 500mbar, maximum solution viscosity resistance of 500mm 2 / s, and maximum liquid density of 3.8g / cm3.
1. The HAWACH bottle-top dispenser can be used to dispense aggressive reagents, including concentrated acids, such as H3PO4, H2SO4 and NaOH, KOH and other salt solutions. It can also dispense a variety of organic solvents.
2. Digital display: very easy to read, can accurately set the dispensing volume and continuously repeat operations (mechanical counting). A red recalibration indicator can indicate an automatic transition to industrial settings.
3. The components of the HAWACH bottle-top dispenser use advanced materials: borosilicate glass, ceramics, platinum-iridium, ethylene tetrafluoroethylene, fluorinated ethylene propylene (rubber), phenolic resin, etc. The discharge tube safety nut is made of polystyrene.
4. Drain tube safety helmet: Screw on the safety helmet after draining to prevent residual liquid from dripping and reduce the risk of contact with harmful reagents.
5. Safety valve: use internal circulation to discharge air bubbles, avoid waste of solution and ensure dispensing accuracy.
6. Operating rating: maximum vapor pressure 500Mpa, maximum viscosity 500mm2/s, maximum temperature 40℃, maximum concentration 2.2g / cm3.
7. Easy to disassemble and clean, has a replaceable filling valve and can be autoclaved at 121℃.
8. Equipped with multiple bottle adapters as standard, suitable for a variety of reagent bottles
The do’s and don’ts for the use of bottle-top dispensers
1. When installing the drain pipe and the inlet pipe, insert the nozzle straight into the valve, tighten the screw cap to avoid violent installation, and insert the nozzle.
2. Before each use, make sure that the inlet valve and drain pipe and all valves are properly installed and tightened, so as to prevent the piston movement from splashing.
3. Drain the liquid so that the drainpipe is not directed to the operator to ensure safety.
4. Control the piston to move slowly and uniformly when draining liquid, use a suitable container to receive, let the liquid go down the wall.
5. Please stop immediately when you encounter a failure when draining liquid. Do not operate violently to avoid further damage to the bottle-top dispensers.
6. After use, please fasten the safety cap of the discharge pipe to prevent the liquid at the discharge pipe from dripping due to gravity or absorbing water vapor in the air.
7. After use please rotate the scale adjustment ring to the “0” position to ensure safety.
8. Prohibited reagents: HF acid and bromine suspension. (If used, a special bottle-top dispenser is required).
9. Do not attach organic reagents to the surface. If so, wash with water immediately.
10. The suitable temperature for the bottle-top dispenser is 4-50 ℃.