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CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079

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CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079

China CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079 supplier
CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079 supplier CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079 supplier

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Product Details:

Place of Origin: China
Brand Name: Newradar
Certification: ISO/DOT/GB
Model Number: N/A

Payment & Shipping Terms:

Minimum Order Quantity: 2pcs
Price: negotiation
Packaging Details: Packed in 40L-926L cylinder or packed according to the demands.
Delivery Time: 25 working days after received your payment
Payment Terms: L/C, , T/T, Western Union, MoneyGram
Supply Ability: 10000 pcs per month
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Detailed Product Description
Product Name: Sulfur Dioxide Purity: 99.9%
Density: 2.9275kg/Nm3 CAS No.: 7446-09-5
EINECS No.: 231-195-2 Acidity: 1.81
Basicity: 12.19 Color: Colorless

CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079

 

 

Description:

 

Sulfur dioxide can be a byproduct in the manufacture of calcium silicate cement; CaSO4 is heated with cokeand sand. Treatment of basic solutions with sulfur dioxide affords sulfite salts.

 

Featuring sulfur in the +4 oxidation state, sulfur dioxide is a reducing agent. It is oxidized by halogens to give the sulfuryl halides, such as sulfuryl chloride.

 

Sulfur dioxide is the oxidising agent in the Claus process, which is conducted on a large scale in oil refineries. Here, sulfur dioxide is reduced by hydrogen sulfide to give elemental sulfur.

Sulfur dioxide is one of the few common acidic yet reducing gases. It turns moist litmus pink, then white.

 

 

Specifications:

 

1. Physical properties

 

Commodity

Sulfur Dioxide

Molecular Formula SO2
CAS No.

94336-28-4

UN No.

UN1079

Hazardous class for transort 2.3

 

2. Typical technical data (COA)

 

Specification Unit Certified Concentration Newradar SO2
SO2 % ≥99.90 ≥99.92
Residue % ≤0.040 ≤0.036
Moisture(H2O) % ≤0.060 ≤0.044
Appearance   Slightly Yellow Colorless

 

 

 

 

 

 

 

3. Package

 

Cylinder Size Filling Weight (kg)

Valve Type

 

100ltr 98 QF-10
400ltr 390 QF-10
800ltr 784 QF-10
926ltr 900 QF-10

 

Applications:

 

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. Sulfur dioxide for this purpose is made when sulfur combines with oxygen. The method of converting sulfur dioxide to sulfuric acid is called the contact process. Several billion kilograms are produced annually for this purpose
As a preservative Sulfur dioxide is sometimes used as a preservative for dried apricots, dried figs, and other dried fruits, owing to its antimicrobial properties, and is called when used in this way in Europe. As a preservative, it maintains the colorful appearance of the fruit and prevents rotting. It is also added to sulfured molasses
In winemaking Sulfur dioxide was used by the Romans in winemaking, when they discovered that burning sulfur candles inside empty wine vessels keeps them fresh and free from vinegar smell
As a reducing agent Sulfur dioxide is also a good reductant. In the presence
of water, sulfur dioxide is able to decolorize substances. Specifically, it is a
useful reducing bleach for papers and delicate materials such as clothes
Biochemical and biomedical roles Sulfur dioxide is toxic in large amounts. It or its conjugate base bisulfite is produced biologically as an intermediate in both sulfate-reducing organisms and in sulfur-oxidizing bacteria, as well. The role of sulfur dioxide in mammalian biology is not yet well understood
As a refrigerant Being easily condensed and possessing a high heat of
evaporation, sulfur dioxide is a candidate material for refrigerants. Prior to the
development of chlorofluorocarbons, sulfur dioxide was used as a
refrigerant in home refrigerators
As a reagent and solvent in the laboratory Sulfur dioxide is a versatile inert solvent widely used for dissolving highly oxidizing salts. It is also used occasionally as a source of the sulfonyl group in organic synthesis
Proposed use in climate engineering Injections of sulfur dioxide in the
stratosphere has been proposed in climate engineering
As an air pollutant Sulfur dioxide is a noticeable component in the atmosphere, especially following volcanic eruptions.

 

CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079

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