In scientific research and laboratory applications, liquid nitrogen cryogenic freezers are widely used to store biological samples such as cells and tissues. By utilizing the cryogenic properties of liquid nitrogen, biological samples are frozen and stored at a low temperature below -196�°C to maintain their activity and long-term preservation. The tank is made of stainless steel, which has high strength and corrosion resistance at low temperatures to ensure the quality and integrity of cell samples.
So, what are the storage advantages of liquid nitrogen cryogenic freezers?
Large diameter and large capacity: 350 liters, 750 liters, 1000 liters, 1800 liters and other capacity options are available to meet the storage needs of different users. The large diameter facilitates sample access, and the sample can be stored in a 360�° rotation, with high space utilization. And the liquid nitrogen consumption is low, ensuring the stability and economy of sample storage. â??
Intelligent management system: The system has functions such as temperature monitoring, liquid level monitoring, abnormal reminders, remote alarms, event recording and automatic rehydration, which reduces the cost of manual supervision, is safe and reliable, and is easy to manage. â??
Compatible with both gas and liquid storage modes: Supporting both gas and liquid storage modes, samples can be stored in liquid (-196�°C) or stored separately from liquid nitrogen in gas (-190�°C), adapting to different sample preservation needs. â??â??
Storage safety: Compared with conventional liquid nitrogen tanks, liquid nitrogen cryogenic freezers use gas phase storage, which can avoid the risk of cross-contamination of cell samples and bursting of cryopreservation tubes, and ensure the safety and integrity of cell samples. â??â??â??
In addition, the design of the liquid nitrogen freezer also takes into account human factors, such as the side-mouth structure and the partitioned storage of rotating trays, making it more convenient to store and access biological samples. These features together ensure the long-term stable storage of biological samples in a deep cryogenic environment.
The primary use of Ammonium Sulphate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth. The main disadvantage to the use of Ammonium Sulphate is its low nitrogen content relative to Ammonium Nitrate, which elevates transportation costs. It is also used as an agricultural spray adjuvant for water soluble insecticides, herbicides, and fungicides. There it functions to bind iron and calcium cations that are present in both well water and plant cells. It is particularly effective as an adjuvant for 2,4-D (amine), glyphosate and glufosinate herbicides.
Commodity: Calcium carbide Molecular formula:CaC2 Molecule Weight: 64.10 H.S code:28491000 CAS: 75-20-7 UN NO.1402 HAZARD CLASS: 4.3 Application: It is a kind of basic material for organic synthesis, and can produce acetylene gas for cutting and welding, also be material for calcium cyanamide. Appearance: Grey, black solid, purple when its purity is more than 90%. Granule:4-25mm / 15-25mm / 25-50mm / 50-80mm /25-80/ 80-120mm Package: Net in 100kg or 50kg new iron drums with nitrogen. Specification: GB10665-2004 Specification Superfine Grade First Grade Second Grade Gas yield(L/kg)L/kg 305 295-305 285-295 PH3 content in acetylene (PH3%) 0.06 0.08 0.08 H2S content in acetylene (H2S%) 0.1 0.1 0.1 Loading weight in 1 x 20fcl:22.5mt
Supplier: Energy drinks, canned fruits, canned fish, durian, blueberries, mushrooms, olive oil, sunflower oil, palm oil, soybean oil, canola oil, pure vegetable oil, sugar, maple syrup, cream milk, rice, corn, black matpe, dal, peas, kidney beans, lentils (masoor), black pepper, nutmeg, ginger, chilly, saffron, turmeric, mustard, bay leaves, cardamom, cinnamon, sulfuric acid, nitrogen, sodium hydroxide, caustic soda, sodium lauretha sulfate, sodium lauryl ether sulfate, soap noodles, thiourea, pvc resin, maleic anhydride, chlorine b, potassium hydroxide 90%,sodium metabisulphite, sles 70%,packing tape, tapes, copper scrap, aluminum scrap, pu foam scrap, occ scrap, oinp newspaper scrap, pet flakes, bee pollen, bee wax, polyethylene wax, paraffin wax ldpe, pet, polyethylene, hdpe granules, polyvinyl chloride, nylon 6 granules, lldpe granule, polypropylene granules, polystyrene granules, tyres, rims, dry storage container, newsprint paper, copy paper, outboard motors, jet skis
Services: Exporters
Altus Al245 Joker 360 Lt Horizontal Freezer
Supplier: Plant food products : sugar, wheat, corn. soybeans, rice animal food products : chicken, chicken feet, chicken paws, beef, pork. fertilizers: urea 46, nitrogen, phosphate, potassium mineral ores : iron, copper, manganese, zinc.
MAP 12-61-0 Monoammonium Phosphate (MAP) is commonly used universal fertilizer and a soluble fertilizer of 12% nitrogen content (in ammonium form) and 61% phosphorus content (soluble in water). Monoammonium Phosphate (MAP) is also known as Ammonium Dihydrogen Phosphate (ADP), as a raw material to produce NPK water soluble fertilizer for drip irrigation and foliar spaying.
SPECIFICATION: UREA 46% NITROGEN GRANULAR UREA CARBAMIDE, CARBONLYDIAMIDE, AGRICULTURAL GRADE, GRANULAR, STANDARD according to GOST 2081-92, MARK B a. PACKING: in bulk or bags / 50 KG b. SPECIFICATION: SPECIFICATION UREA46% GRANULAR GOST 2081-92 Product UREA N46 agriculture grade Nitrogen 46% minimum Moisture 0.5 max Free ammonia 160 PXT PPM maximum BIURET 1.0% maximum Harmful substances 100 % free from harmful substances Melting point 132 degree Celsius Granulation 1mm to 4mm 90% minimum Color White standard or white pure Odor Odorless Boiling Decomposes before boiling Radiation Non-radioactive Physical state Solid@20�°C, 101 KPA white granules Specific gravity Solid@20�° C-1.35 t/ms Floatability in water Sinks and mixes Molecular weight 60.065 Fertilizer granular 94-96%min Prill 96% max Fisher 0.30%
Product introduction: Calcium is a silvery white metal that is harder and heavier than lithium, sodium, and potassium; It melts at 815 C. The chemical nature of metallic calcium is very active. In the air, calcium is quickly oxidized and masked with an oxide film. When heated, calcium will burn and emit a beautiful glow of brick red. Calcium and cold water have a slower effect, and intense chemical reactions occur in hot water to release hydrogen (lithium, sodium, and potassium can cause intense chemical reactions even in cold water). Calcium is also easily combined with halogens, sulfur, nitrogen, and the like. 1,product name:calcium metal 2,Shape :powder, lump and granulates 3,CAS:7440-70-2 4,Density:1.54g/cm 5,Melting point:850C 6,Boiling point:1440 C(lit.) 7,Application:Wheel keel Product use: At present, in the steel industry, the main use of metal calcium is to process into metal calcium particles, and then to make calcium iron wire or pure calcium wire, and finally used for steel refining outside the furnace, its role is to desulfurization, deoxidation, increase the fluidity of molten steel. Promote the rapid rise of inclusions in molten steel, generally used in the production of high-quality steel; as a dehydrating agent to produce anhydrous alcohol; in the petroleum industry, as a desulfurizing agent, in the metallurgical industry, it is used to deoxidize or desulfurize . However, calcium compounds have a very wide range of uses, especially in the construction industry.
Items Standard Appearance "White to slightly creamy white, hygroscopic powder or flakes" Identification A. An orange -yellow precipitate is formed B.A pale blue precipitate is formed C.A deep red colour is produced PH(1 in 20) 3.0~7.0 Water â?¤5.0% Residue on ignition â?¤0.1% Lead â?¤ 10ppm Aldehydes â?¤0.05% Hydrazine â?¤ 1ppm Vinylpyrrolidone â?¤0.2% 2-Pyrrolidone â?¤3.0% Peroxides(as H2O2) â?¤400ppm K-value 27.0~32.4 Assay(Nitrogen) 11.5~12.8% TAMC â?¤ 1000 cfu/g TYMC â?¤ 100 cfu/g Staphylococcus Aureus Negative in 10g Salmonella Negative in 10g Pseudomonas Aeruginosa Negative in 10g E.Coli Negative in 10g
