Qingdao Ludong Gas Co., Ltd.  

Product Name: Liquid Sulfur Dioxide 99.9% Model NO.: 99.9% Chemical Property: Poisonous Gases Grade Standard: Industrial Grade Constituent: 99.9% So2 Package: 800L Cylinder Un: 1079 Filling Contents: 980kg Trademark: LD Transport Package: 800L Gas Cylinder Specification: 99.9% Origin: China HS Code: 2811290090 Product Description General DescriptionA colorless gas with a choking or suffocating odor. Boiling point -10°C. 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:SpecificationsSpecial gradeGrade ASO2 content ≥%99.9799.90Residue content ≤%0.0100.040Moisture content ≤%0.0200.060Arsenic(As) content ≤%0.0000040.0001Color (as liquid)Water WhiteWater WhiteColor (as gas)ColorlessColorlessStandard No.GB3637-93Shipping and StorageLiquid SO2 can be shipped in a number of different ways. Small quantities are available in 68 kg (150 lb) cylinders similar to cylinders for welding gases. The rate of delivery will depend in the temperature of the liquid SO2 in the cylinder. The overall rate of SO2 gas discharge will depend on the heat transfer rate from the surroundings through the walls of the cylinder. At room temperature a discharge rate of about 0.9 kg/h (2.0 lb/h) of gaseous SO2 is possible.Larger quantities of liquid SO2 are available in one tonne containers.