Detail Information

Product Name:	Sulfur Dioxide	Purity:	99.9%
Density:	2.9275kg/Nm3	MF:	SO2
Application:	As An Air Pollutant	Acidity:	1.81
Basicity:	12.19	Color:	Colorless
High Light:	big industrial gas , industrial and medical gases

Product Description

99.9% High Purity SO2 Air Pollution Sulphur Dioxide ISO Certificate

Description:

The sequential oxidation of sulfur dioxide followed by its hydration is used in the production of sulfuric acid.

Sulfur dioxide is one of the few common acidic yet reducing gases. It turns moist litmus pink, then white. Sulfur dioxide can bind to metal ions as a ligand to form metal sulfur dioxide complexes, typically where the transition metal is in oxidation state 0 or +1. Many different bonding modes are recognized, but in most cases, the ligand is monodentate, attached to the metal through sulfur, which can be either planar and pyramidal.

Sulfur dioxide is primarily produced for sulfuric acid manufacture. In the United States in 1979, 23.6 million tonnes of sulfur dioxide were used in this way, compared with 150 thousand tonnes used for other purposes. Most sulfur dioxide is produced by the combustion of elemental sulfur. Some sulfur dioxide is also produced by roasting pyrite and other sulfide ores in air.

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.

99.9% High Purity SO2 Air Pollution Sulphur Dioxide ISO Certificate 0

Tag:

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

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

99.9% High Purity SO2 Air Pollution Sulphur Dioxide ISO Certificate

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