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  • twenty-nine
    09

    How to maintain liquid nitrogen tank

    Through the main use of liquid nitrogen tank, the classification of liquid nitrogen tank, the structure of liquid nitrogen tank, we have a general understanding of liquid nitrogen tank, and know how to use liquid nitrogen tank correctly. In the process of using liquid nitrogen tank, in addition to pay attention to the amount of liquid nitrogen in the liquid nitrogen tank, take

    Update Date: September 29, 2020 Views: 81
  • twenty-nine
    09

    Operation method of liquid nitrogen degassing

    Do solution polymerization experiment, how to operate? The liquid nitrogen tank is pumped by vacuum pump and filled with nitrogen, which is repeated several times before liquid nitrogen operation. Steps: 1 pressure nitrogen 2 freezing 3 vacuumizing 4 pressure nitrogen to atmospheric pressure 5 unfreezing and then pressing nitrogen 6 and 2

    Update Date: September 29, 2020 Views: 175
  • twenty-nine
    09

    Classification and model of liquid nitrogen tank

    Through the previous article, we learned how to maintain the liquid nitrogen tank. Next, let's talk about the classification and model of liquid nitrogen tank. In fact, there are many manufacturers of liquid nitrogen tanks, so there are many types and models of liquid nitrogen tanks. The following is the common classification and model of liquid nitrogen tank.

    Update Date: September 29, 2020 Views: 101
  • twenty-eight
    09

    Treatment of keloid with liquid nitrogen freezing and MEBO Scar Lotion

    Objective: To investigate the effect of MEBO Scar Lotion on the recurrence of keloid after freezing. Methods: 30 patients with keloid were treated with MEBO Scar Lotion after liquid nitrogen freezing. Results: the one-year cure rate and effective rate showed that MEBO nuoping had better prevention and treatment of scar

    Update Date: September 28, 2020 Views: 151
  • twenty-eight
    09

    Liquid nitrogen biscuit

    As we all know, under normal atmospheric pressure, liquid nitrogen will be formed when the temperature is below - 196 ℃. If pressurized, liquid nitrogen can be obtained at a relatively high temperature. So make biscuits with liquid nitrogen and smoke in your mouth! For the game effect, so punish stars to eat liquid nitrogen biscuits! his

    Update Date: September 28, 2020 Views: 172
  • twenty-eight
    09

    Matters needing attention when using liquid nitrogen tank to store and transport livestock semen

    When using liquid nitrogen tank to store and transport livestock semen, we should not only master how to maintain the liquid nitrogen tank technology, but also know what precautions the liquid nitrogen tank has. The following points should be paid attention to when using liquid nitrogen tank: 1. Before using, a small amount of liquid nitrogen should be injected first

    Update Date: September 28, 2020 Views: 172
  • twenty-two
    09

    Methods of obtaining liquid nitrogen

    How to get liquid nitrogen? By compressing and cooling the air, separating the air and other gases, nitrogen is left. The utility model relates to an air separation system for obtaining liquid oxygen and liquid nitrogen, which at least comprises an air separation device mainly composed of a fractionator and at least a package

    Update Date: September 22, 2020 Views: 98
  • twenty-two
    09

    Notes on daily use of liquid nitrogen biological container

    In order to make breeder use liquid nitrogen tank more safely and normally in the process of frozen preparation, this paper introduces some points for attention. 1. Storage of liquid nitrogen biological container 1.1 liquid nitrogen is a kind of ultra-low temperature substance, and the temperature can reach - 196 ℃.

    Update Date: September 22, 2020 Views: 133
  • twenty-two
    09

    Safety regulations for use of liquid nitrogen tank

    1. Objective this procedure is mainly used to guide operators how to use liquid nitrogen safely and correctly. 2. Overview of liquid nitrogen: liquid nitrogen tank 2.1 legal name chemical Chinese Name: liquid nitrogen chemical,

    Update Date: September 22, 2020 number of Views: 142
  • fifteen
    09

    Harm and protection of nitrogen

    The proportion of nitrogen in the atmosphere is 78%. Because nitrogen is not active, it can not support combustion or react directly with other substances at room temperature. When the nitrogen content in the environment gradually increases, while the oxygen content gradually reduces to 19%, people often feel dizzy. As the oxygen ratio continues

    Update Date: September 15, 2020 Views: 120
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