Scope
Engine coolant freezing point tester in accordance with the national standard GB / T2430 "Determination of the freezing point of jet fuel," requires the State Petroleum and Chemical Industry Standard SH / T0090 "engine coolant freezing point determination" provides design and manufacture.
Choose a different configuration, it can measure the freezing point of jet fuel, engine coolant concentrate separately, it is a multi-purpose freezing point tester.
Features
1. Double vacuum glass observation window, real-time observation of samples during operation;
2. Using imported compressor refrigeration the cascade technology can reach -70 ° cold bath, noise;
3. Using PID control techniques, temperature control, temperature control accuracy of ± 0.5 °C4, engine coolant freezing point tester using state-of
4. The art electromagnetic stirring, no noise, low failure rate, is the preferred alternative to the traditional mechanical agitation.
Technical Parameters
1. Power supply: AC 220V ± 10%; 50Hz;
2. Working cold tank: stainless steel cold tank, double vacuum glass viewing window;
3. temperature control of cold tank: +20 °C~ -70 °C;
4. Temperature accuracy: ± 0.5 °C;
5. Bath stirring: automatic stirring by motor, power 6W, 1200r / m;
6. Refrigeration system: new refrigeration compressor;
7. Display mode; LCD display
8. Ambient temperature: 30 °C;
9. Relative humidity: 85%;
10. Total power consumption: not more than 2000W.
Scope Engine coolant freezing point tester in accordance with the national standard gb / t2430 "determination of the freezing point of jet fuel, " requires the state petroleum and chemical industry standard sh / t0090 "engine coolant freezing point determination" provides design and manufacture. Choose a different configuration, measuring jet fuel, engine coolant concentrate its freezing point and other indicators may be used separately, is a multi-purpose freezing point tester. Features 1. Double vacuum glass observation window, real-time observation of samples during operation; 2. Using imported compressor refrigeration the cascade technology can reach -70 ° cold bath, noise; 3. Using pid control techniques, temperature control, temperature control accuracy of ± 0.5 °c4, engine coolant freezing point tester using state-of 4. The art electromagnetic stirring, no noise, low failure rate, is the preferred alternative to the traditional mechanical agitation. Technical parameters 1. Power supply: ac 220v ± 10%; 50hz; 2. Work the cold tank: stainless steel cold tank, double vacuum glass viewing window; 3. Cold trough temperature: +20 °c~ -70 °c; 4. Temperature accuracy: ± 0.5 °c; 5. Bath agitation: automatic stirring motor, power 6w, 1200r / m; 6. Refrigeration system: new refrigeration compressor; 7. Sample stirring: electromagnetic stirring, 0 to 120 beats / minute, continuously adjustable; 8. Ambient temperature: 30 °c; 9. Relative humidity: 85%; 10. Total power consumption: not more than 2000w.
Scope The instrument conforms to the SH/T0090-91 and ASTM D1177 standards, the method is suitable for determine the freezing point of high boiling point and low boiling point engine coolant and concentrated liquid. Features 1, this instrument uses the liquid crystal display, Chinese operation interface 2, this instrument adopts the single chip microcomputer automatic control, the experiment process need not be controlled manually 3, the instrument can detect the changes of various parameters, automatic detection results 4, the instrument has the function of self-diagnosis, prompt operation Technical Parameters 1, Power: AC220V ±% 10 50Hz 2, temperature range: -70 â?? ~ room temperature 3, temperature accuracy: 0.1 â?? 4, heating power: 800W 5, cooling power: 1000W
Material: high carbon spring steel, spring steel, stainless steel, alloy steel Compression Spring, Extension Spring : Wire Diameter: 0.2-40.0mm Torsion spring wire diameter :0.2-35mm Surface Finish: black , Zinc, Nickel, silver, golden, tin, powder coating, shot pin Applications: Automotive, medical device, agricultural machinery ,electronics, toy, electric power distribution. Extension spring hook include Germany hook, British hook, Side hook We can customize special design of springs based on your requirement.
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Commodity: Sodium Hydrosulfite Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate CAS No.: 7775-14-6 Molecular Weight: 174.10 Chemical Formula: Na2S2O4 Product Description Appearance: White, crystalline powder. Product Feature Odor: Slight irritative. Specific Gravity: Unavailable Solubility: Soluble in water. Density: 2.19 pH: 6-7 pH Test-Method: PH test paper. % Volatiles by volume @ 21C (70F): 0 Boiling Point: Not applicable. Melting Point: >300 C Decomposes. Vapor Pressure (mm Hg): No information found. Bulk Density: ~0.9 Evaporation Rate (BuAc=1): No information found. Application 1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching . 2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps. 3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products, 4. in mineral, the compound of thiourea and other sulphides. 5. as reducing agent in chemical industry. 6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms. Packaging 50kg/100kg net in iron drums with double PVC bags Product Specification/Models NDEX 90%, 88%, 85%. FOOD ADDITIVE Na2S2O4, 90%, 88%, 85%, Fe 20ppm ZincZnOther heavy metal calculated as Pb, 1ppm Water Insolubles05% Shelf Life(month)12
4-Hydroxybenzoic acid Chemical Name:4-Hydroxybenzoic acid Trade Name:p-oxybenzoic acid Molecular Formula:C7H6O3 Molecular Weight:138.12 CAS No.:99-96-7 Properties:white odorless crystalline powder, easily soluble in hot water and alcohols, aethers and acetone, slightly soluble in cold water and benzene, insoluble in carbon bisulfide; relative density is 1.46 Use: Can be used as antiseptic, intermediate of dyes, pharmaceuticals; as main material of liquid crystal polymers; as material of pesticide intermediate Specification Item Specification Polymer Grade Technical Grade Appearance white crystal powder white crystal powder Purity(on dry base) % 99.6 99.0 Melting Point 214-217 212-216 Odor odorless odorless Solubility Clear and transparent clear and transparent Loss on Drying % 0.20 0.50 Color(Pt-Co) 10 40 Ash % 0.02 0.15 Sulfate(SO42-) 0.01 0.05 Chloride(Cl-) % 0.005 0.02 Phe% 0.01 0.10 Salicylic Acid % 0.02 0.10 4-Hydroxyisophthalic Acid(HIPA) ppm 500 / Insolubles in Metha ppm 50 / Potassium(K+) ppm 5 / Sodium (Na+) ppm 5 / Iron (Fe) ppm 5 / Ca2++Mg2+ppm 5 /
Commodity: Synthetic Cryolite Formula: Na3AlF6 M.W.: 209.95 Properties: The product is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.953.01g/cm3, melting point about 1000centigrade, specific heat 1.056j/gcentigradeat 18100centigrade. Its slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of its crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800centigrade will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively. Specifications: Appearance white powder F 52% min Al 12% min Na 33% max SiO2 0.36% max Fe2O3 0.08% max CaO 0.5% max P2O5 0.03% max SO4 0.6% max H2O 0.4% max Loss on ignition 2 % max Uses: Its mainly used as a flux in the aluminum smelting by fused-salt electrolysis; also an opalizer in the manufacture of enamel; an opacifier and auxiliary solvent of glass and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for resin and rubber-boned abrasive wheels. Packing & Storage: In plastic coating woven bags with plastic film inside, 25kg,40kgs, 50kgs or 1000kgs net each, or as the requirement of clients.Stored: in a cool , ventilated, dry place.
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