High Volume Air Sampler

Commodity: Sodium Bisulfite Molecular Formula: NaHSO3 Molecular Weight: 104.06 Properties: White monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.49; very easily soluble in water; can be decomposed when heated; slightly soluble in ethanol; aqueous solution is acidic; has strong reducing property; can be oxidized in the air or loose sulfur dioxide. Quality Standard: HG/T3492-80 Technical Indicator High-purity grade Acrylic grade Food grade Refined grade Industrial grade 1 NaHSO3 % 99.5 Insol. in water % 0.003, 0.005, 0.03, 0.04, 0.05 Chloride(Cl) % 0.003, 0.004 Iron(Fe) % 0.001 0.002 0.005 Heavy metal(Pb) 0.001 Arsenic(As) % 0.0001 Clarity test Qualified Use: It is used in the bleaching of cotton textiles; as reducing agent in dyes, paper-making, leather, chemical synthesis; in the manufacture of pharmaceutical intermediates, developer, food bleacher, antiseptic and anti-oxidants. Packing: In PP woven bag lined with PE bag; paper-plastic composite bag, and kraft paper bag etc. Net wt.: 25/50/1000 kgs/bag or upon clients' request.

We are supplier and exporter of Hematite Powder. Hematite Powder is a mineral, coloured black to steel. It is mined as a main of iron ore and used as a weighting agent in oil drilling. It is the mineral form of iron(III) oxide (Fe2O3). Fluids weighted with API Hematite Powder contain fewer solids by volume than, making higher mud fluids possible. API Grade Hematite Powder is applicable in all types of drilling fluids, including freshwater, seawater and oil-base muds. It is used as a density increasing product, used as a weighting agent and in the paint industry. Hematite is also a harder mineral than Barite so it is more resistant to particle size degradation. High Density Hematite Powder API Grade -SG = 5.19 - 5.47 -Fe2O3 = 96.70% -Fe = 71.82% -SiO2 = 0.89% -Mesh Size (passing at 98%) = 325

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.

Carbopol, also called CarbCarbopol, also called Carbomer or Carboxypoly-methylene is a generic name for synthetic high molecular weight polymers used as thickening, dispersing, suspending and emulsifying agents in pharmaceuticals and cosmetics. They may be homopolymers , Carbomers are found in the market as white and fluffy powders. They have the ability to absorb, retain water and swell to many times their original volume. Carbomers codes (910, 934, 940, 941 and 934P) are an indication of molecular weight and the specific components of the polymer .

Cenospheres (aluminosilicate microspheres) are hollow aluminosilicate glass ceramic beads ranging in size from 400-500 microns 20-50mkm (most often from 100 to 250 microns), which are formed during high-temperature combustion of pulverized coal. The chemical composition of the main component of the cenospheres is silicon oxide SiO2 (45-60%), aluminium oxide Al2O3 (15-40%), iron oxide Fe2O3 (1.0-10%), calcium oxide CaO (1.5- 4.5%), potassium oxide K2O (2.0-4.5%) and other certain oxides that make up the balance of the content are typically less than 1.0%. Due to the unique set of physical and chemical characteristics of the cenospheres, they are used in the manufacturing of various composite materials. They are used in solving technical issues that require: reduction in the weight material with a low thermal conductivity, high strength, volume efficiency, increased resistance to erosion and aggressive environments.

Function and usage: Industrial grade lithium carbonate is mainly used in steel continuous casting mold slag; in the electrolytic aluminum industry, adding industrial grade lithium carbonate can reduce the volatility, viscosity and melting point of the electrolyte, and improve the conductivity of the electrolyte, thereby reducing heat loss and improving Current efficiency, energy saving and prolonging the service life of electrolytic cells; used to prepare refrigerant lithium bromide; used to prepare lithium chloride as a raw material for metal lithium electrolysis; used to prepare high-purity grade lithium carbonate and pharmaceutical grade lithium carbonate; Used in glass, ceramics, enamel and enamel, etc. Storage and use: Avoid contact with eyes, skin and clothes; keep away from strong acids and strong oxidizing substances, and store in a ventilated, dry and airtight manner. Packing: paper-plastic composite bag lined with 2 layers of PE bag, 25kg/bag or as customer's request. Shipping: The product is not classified as a hazardous chemical and is suitable for shipping by sea, rail, air and road. Pay attention to moisture-proof and acid-proof during transportation.

We supply Bismuth is a white, crystalline, brittle metal with a pinkish tinge. Bismuth is the most diamagnetic of all metals, and the thermal conductivity is lower than any metal except mercury. It has a high electrical resistance, and has the highest Hall effect of any metal (that is, the greatest increase in electrical resistance when placed in a magnetic field). Bismuth is stable to oxygen and water but dissolves in concentrated nitric air. All bismuth salts form insoluble compounds when put into water. Applications Bismuth metal is used in the manufacture of low melting solders and fusible alloys as well as low toxicity bird shot and fishing sinkers. Certain bismuth compounds are also manufactured and used as pharmaceuticals. Industry makes use of bismuth compounds as catalysts in manifacturing acrylonitrile, the starting material for synthetic fibers and rubbers. Bismuth is sometimes used in the production of shot and shotguns. Bismuth in the environment The most important ores of bismuth are bismuthimite and bismite. Bismuth occurs naturally as the metal itself and is found as crystals in the sulphides ores of nickel, cobalt, silver and tin. Bismuth is mainly produced as a by-product from lead and copper smelting, especially in USA. The chief areas where it is mined are Bolivia, Peru', Japan, Mexico and Canada, but only to the extent of 3.000 tonnes per year. There is no reliable estimate of how much bismuth is available to be mined, but it seems unlikely than there will ever be a shortage of this metal.

Lithium hydroxide can be used as developing agent and lubricating oil for spectral analysis The additive of alkaline battery electrolyte can increase the electric capacity by 12 to 15 and increase the service life by 2 to 3 times It can be used as an absorbent for carbon dioxide and can purify the air in submarines The chemical equation is 2LiOHsCO2gLi2CO3sH2Ol It is used to make lithium salt and lithiumbased grease electrolyte of alkaline battery absorption liquid of lithium bromide refrigerator etc used in petroleum chemical industry light industry nuclear industry etc When used in alkaline batteries the aluminum content is not more than 006 and the lead content is not more than 001 It is used as an analytical reagent a photographic developer and also in the manufacture of lithium it is used as a raw material for the preparation of lithium compounds It can also be used in metallurgy petroleum glass ceramics and other industries Lithium hydroxide is mainly consumed for the production of lithium greases A popular lithium grease is lithium stearate which is a generalpurpose lubricating grease due to its high resistance to water and usefulness at both high and low temperatures Carbon dioxide scrubbing Lithium hydroxide is used in breathing gas purification systems for spacecraft submarines and rebreathers to remove carbon dioxide from exhaled gas by producing lithium carbonate and water It is used as a heat transfer medium and as a storagebattery electrolyte It is also used in ceramics and some Portland cement formulations Lithium hydroxide isotopically enriched in lithium7 is used to alkalize the reactor coolant in pressurized water reactors for corrosion control