CAS No. 7446-09-5 Industrial 99.9% Sulfur Dioxide So2 Gas

• CAS No.: 7446-09-5
• Formula: So2
• EINECS: 231-195-2
• Grade Standard: Industrial Grade
• Chemical Property: Poisonous Gases
• Model No.: 99.9%
• Model NO.: 99.9% Purity
• Un Number: 1079
• (M)SDS Reference: P-4655
• Label: Toxic Gas Corrosive
• Shipping Name: Sulfur Dioxide
• Hazard Class: 2.3
• General Description: Colorless Toxic Corrosive Nonflammable Liquefied
• Transport Package: 800L Cylinder
• Specification: 980kg
• Origin: Qingdao, China
• HS Code: 2811290090
• Production Capacity: 50000 Ton Per Year

Product Description

Product Description

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.

 

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

 

Shipping and Storage

Liquid 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.

SO2-Sulfur Dioxide

Purity	99.9%	Application	1. Preservative reducing agent
UN	UN1079		2. Precursor to sulfuric acid
CAS	7446-09-5		3. As a refrigerant
EINECS	231-195-2

Specification	99.9%	≥99.9999%
Ethylene	<50 ppm	<0.1 ppm
Oxygen	<5 ppm	<0.1 ppm
Nitrogen	<10 ppm	<0.1 ppm
Methane	<300 ppm	<0.4 ppm
Propane	<500 ppm	<0.2 ppm
Moisture(H2O)	<50 ppm	<1ppm

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