Low temperature storage equipment is indispensable for laboratories. For example, hospitals, scientific research units, animal husbandry and other industries all need to preserve a large number of biological samples. Commonly used laboratory low temperature equipment include low temperature refrigerators and liquid nitrogen tanks. Among them, liquid nitrogen containers have gradually emerged in the market with many advantages such as safety and stability, and are welcomed by more and more users. Today, I will introduce to you what are the advantages of laboratory liquid nitrogen tanks?
1. Large-caliber design makes it easy to store and access samples. Large-calibers such as 125mm and 216mm can be configured according to the actual needs of users, and sufficient activity space is convenient for the storage and access of biological samples.
2. Large capacity and high storage stability. The large-capacity design of 30-190 liters, the double-tank high vacuum and multi-layer insulation design reduce heat radiation, and the storage samples are stable and safe.
3. The new material is sturdy and durable. Made of high-strength aviation aluminum, it is light and durable and easy to move; the insulated neck tube connects the double tank to reduce liquid nitrogen loss.
4. Convenient sample management. Equipped with 6 square buckets (freezing racks), various sizes are configured according to the capacity, which is convenient for sample classification management.
5. Low-temperature safe storage. Equipped with a polyurethane neck plug and a locking cap, it can improve the insulation effect and lock itself to protect the sample safety and prevent loss.
6. 100% vacuum inspection before leaving the factory, the product has ISO and CE certification and meets relevant standards.
The above are the advantages and characteristics of laboratory liquid nitrogen tanks for storing biological samples. The product has the advantages of low liquid nitrogen volatility, light weight, good low-temperature storage performance, large-capacity sample freezing, etc. It has complete accessories, is economical and practical, and has a variety of models to choose from. It only needs to be injected with liquid nitrogen to use, which is convenient and fast. It is an ideal choice for users!
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This is chemical setting Furan based chemical resistant mortar which is combination of Liquid and Powder, when mixed in proper proportion from workable mortar which after setting and curing give of liquid and give black highly cross linked composites. Furan When set and cured is resistant to highly corrosive acids, alkalis and to powerful organic solvents such as ketones, Aromatic and Chlorinated solvents. It has extreme resistant to Acidic & alkalis, Salts, Greases and Detergents. It resists to Organic & Inorganic acids at their boiling temperature. It is suitable against mild chlorine Gas (dry) phosphorous trichloride, pyridine at room temperature. Furan is especially useful where resistance to mixed media such as aqueous acids /alkalis and organic solvents is needed in chemical plant process and waste streams. Carbon filled Furan is used against corrosive effect of hydrofluoric acid & its salts. PREPARATION OF FURANE MORTAR : Mortar consist of Furan solution and Furan powder. The average mixing ratio necessary to obtain mortar with good working consistency is 1 part by weight Solution & 3 part by weight powder. The ratio will vary slightly depending on temperature and working conditions.Stir the liquid thoroughly before using. Place liquid in a suitable shallow mixing pan. Add powder by weight in the solution mix thoroughly and rapidly until all lumps are dispersed and the mortar is completely homogenous. Spread out the mortar in a thin layer, not more than ¾ thick, to dissipate the heat of reaction and lengthen the working life. Batch size can be varied depending upon the temperature and the speed with which the masons are working. Very large batches will become stiff quite rapidly. Make sure that all the Furan Motrar is used from the pan before another batch is mixed.When working at temperature above 40 C, very small batches not more than 2 Kgs, should be prepared. When working at temperature below 15C the liquid should be kept warm.
The pottery stone ore shown in the earlier photograph is a particularly high-quality special-grade material among our pottery stones. Pottery stones are generally finely crushed, and used as the material for ceramics, bone china, and sanitary ware (toilets, sinks, etc.). Products are shipped out from our mine in sizes of
