Sulfur Dioxide SO2
CAS No.: 7446-09-5
EINECS No.: 231-195-2
UN No.: UN1079
Purity: 99.9%
Dot Class: 2.3
Appearance: Colorless Liquid
Grade Standard: Industrial Grade
Precursor to sulfuric acid:
Sulfur dioxide is an intermediate in the production of sulfuric acid, being converted to sulfur trioxide, and then to oleum, which is made into sulfuric acid.
As a preservative reducing agent:
Sulfur dioxide is sometimes used as a preservative for dried apricots, dried figs, and other dried fruits, it is also a good reductant.
As a refrigerant:
Being easily condensed and possessing a high heat of evaporation, sulfur dioxide is a candidate material for refrigerants.
Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2. It is a poisonous gas with a pungent, irritating smell, that is released by volcanoes and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide unless the sulfur compounds are removed before burning the fuel. Further oxidation of SO2, usually in the presence of a catalyst such as NO2, forms H2SO4, and thus acid rain.[2] Sulfur dioxide emissions are also a precursor to particulates in the atmosphere. Both of these impacts are cause for concern over the environmental impact of these fuels.
Product Description A colorless gas with a choking or suffocating odor. Boiling point -10C. Heavier than air. Very toxic by inhalation and may irritate the eyes and mucous membranes. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. Liquid sulphur dioxide (SO2) is a versatile chemical with many uses, both in liquid form or as a source of gaseous SO2. Liquid SO2 is used the pulp and paper industry, mining industry, and in the food industry as a preservative. It can function as a reducing agent, an oxidizing agent, a pH controller, purifying agent, preservative, a germicide and bleaching agent. SO2 can also be used as a refrigerant, heat transfer fluid and selective solvent. Products specification: Specifications Special grade Grade A SO2 content % 99.97 99.90 Residue content % 0.010 0.040 Moisture content % 0.020 0.060 Arsenic(As) content % 0.000004 0.0001 Color (as liquid) Water White Water White Color (as gas) Colorless Colorless Standard No. GB3637-93
Commodity: Sodium Metabisulphite Molecular formula:Na2S2O5 Molecule Weight:190.10 H.S code:28321000 CAS:7681-57-4 Product Features Appearance : White Or Light Yellow Crystal Powder Odour: Sulfur Dioxide Taste : Salty Melting Poing : 150 Specific Density1.48 Ph : 4.0-4.6 Solubility : Soluble In Water ,insoluble In Alcohol Application: 1. For industry Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of stapk; Treatment agent of waste water; Rubber solidifying agent ;Perfume industry is served as hydrocarbon perfume aldehyde ; The hide profession employ to do to molt dose and pliable dose and wearproof dose ,The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose and so on; sewage treatment. 2.For food additive Bleach agent (e.g.candies, cake, bamboo shoots, etc);Loose agent (e.g.bread, cracker etc);Antiseptic and germicide (e.g.fruit juice, tinned foodbrews, the cereals food is defended storage etc);Inhibitor and freshen agent (e.g.day lily, seafood, fruit and vegetable etc) Specifications: Na2S2O5 97% min SO2 65% min Fe 0.0015% max water-Insoluble 0.01% max As 0.0001% max PH 4.0-4.6 Packing and Storage Knitted bags lined polyethylene plastic bags double packaging, Weighing 25Kg/50KG/1000Kg/1200kg. Transportation-and harsh rain. Stored in a cool, ventilated, dry place.
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.
1. Product name: Ammonium bisulfite solution 2. Molecular formula: NH4HSO3 3. Molecular weight: 99.10 4. Physical and chemical properties: light yellow liquid, with a little sulfur dioxide odor. Relative density (70%) : 1.4. 5. Technical index: Item Photographic grade Appearance clear light yellow liquid Content w/w % 68-72 pH value (stock solution 20C) 4.0-6.0 Iron (Fe) w/w % 0.001 6. Packing: 270kg plastic drum, 1.25MTS/IBC 7. Uses: in synthesizing dye intermediate, surfactant, herbicide, reducing agent in pharmaceutical industry, etc.
Sulfur Dioxide(CAS:7446-09-5)
Active potassium permanganate is a product that make from activated alumina ball deep processing. use special activated alumina as carrier, after high temperature solution compression, decompression and other processes produced, more than twice the absorption capacity of similar products, with high strength and long life period. Description: This product use special activated alumina carrier, it has two times adsorption capacity than similar products. It use strong oxidizing of potassium permanganate, reducing the harmful gas from the air oxidation decomposition, so as to achieve the purpose of cleaning the air. Applications: gas adsorbent, adsorption of sulfur dioxide, chlorine, NX, hydrogen sulfide and other gases. Packaging Details 1.25kg Kraft bag or PP Bag. 2.Big bag: 500kg PP Bag 3.According to customer's requirements Activated Sodium permanganate ball
We are an Exports of all types of Titanium Dioxide, ilmenite from China. Grades we have Description 1. JTR-719 is an excellent general-purpose titanium dioxide produced by the sulfuric acid method. 2. JTR-739 is titanium dioxide produced by sulfuric acid method, which has excellent optical properties and weather resistance. 3. JTR-759 is a rutile titanium dioxide produced by the sulfuric acid method, which is specially designed for the printing ink industry. 4. JTR-799 is titanium dioxide produced by sulfuric acid method, suitable for high concentration master batch and plastics. 5. JTCR-539 is a coating grade titanium dioxide produced by the chlorination method. Applicable to all kinds of coatings. 6. JTCR-599 is a rutile titanium dioxide produced by the chlorination method, which is suitable for all kinds of plastics. 7. B101 is an anatase of titanium dioxide, which is highly recommended for coatings, inks, paper, plastics, rubber, and chemical fibers. 719 - General Grade 719T - Premium Grade 519 - Chloride Grade We are looking forward to working with you, and we offer you standard best quality and best prices of Titanium Dioxide For more details please reply. Please response our email so we can provide you Technical Data Sheet and Prices CIF or CFR and Samples if required
We are an Exports of all types of Titanium Dioxide, ilmenite from China. Grades we have Description 1. JTR-719 is an excellent general-purpose titanium dioxide produced by the sulfuric acid method. 2. JTR-739 is titanium dioxide produced by sulfuric acid method, which has excellent optical properties and weather resistance. 3. JTR-759 is a rutile titanium dioxide produced by the sulfuric acid method, which is specially designed for the printing ink industry. 4. JTR-799 is titanium dioxide produced by sulfuric acid method, suitable for high concentration master batch and plastics. 5. JTCR-539 is a coating grade titanium dioxide produced by the chlorination method. Applicable to all kinds of coatings. 6. JTCR-599 is a rutile titanium dioxide produced by the chlorination method, which is suitable for all kinds of plastics. 7. B101 is an anatase titanium dioxide, which is highly recommended for coatings, inks, paper, plastics, rubber, and chemical fibers. 719 - General Grade 719T - Premium Grade 519 - Chloride Grade
