Purity 99.99% Sulfur Dioxide Tank Liquid SO2 Cylinder

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Products Description

Sulfur dioxide is one of the few common acidic yet reducing gases. It turns moist litmus pink (being acidic), then white (due to its bleaching effect). It may be identified by bubbling it through a dichromate solution, turning the solution from orange to green (Cr3+ (aq)). It can also reduce ferric ions to ferrous.[19] Sulfur dioxide can react with certain 1,3-dienes in a cheletropic reaction to form cyclic sulfones. This reaction is exploited on an industrial scale for the synthesis of sulfolane, which is an important solvent in the petrochemical industry.

Sulfur dioxide is used in many industries. It's used to manufacture sulfuric acid, paper, and food preservatives. Some examples of
workers at risk of being exposed to sulfur dioxide include the following: Factory workers in industries where it occurs as a
by-product, such as copper smelting or power plants.

Industrial grade High purity 99.999% SO2 Sulfur dioxide gas As a refrigerant

Sulfur dioxide occurs as a colorless gas at room temperature and pressure, with a strong, suffocating, pungent odor. It is
noncombustible and is a strong reducing agent.

Product Name	Sulfur dioxide	Purity	99.9-99.999%
CAS No.	7446-09-5	EINECS No.	231-195-2
MF	O2S	Molar mass:	7446-09-5.mol
UN No.	2037	Hazard Class	2.3
Appearance:	colorless	Odor:	Pungent

Inspection item	unit	Requirement	Inspection result
Product appearance	/	clear and colorless	clear and colorless
Product odor	/	odorless	odorless
Purity,%,≧	m/m	99.9	99.99
Moisture,%,≦	m/m	0.006	0.0004
Acidity (as HCL),≦	m/m	0.0001	<0.00001
Evaporating residue,%,≦	m/m	0.02	0.001

Packaging & Delivery

Package Size	40Ltr Cylinder	800Ltr Cylinder
Filling Content/Cyl	45Kgs	980Kgs
QTY Loaded in 20'Container	210 Cyls	15 Cyls
Total Volume	9.45Tons	7.8Tons
Valve	QF-10

Application

Usage	Typical Application
Food industry	Sulfur dioxide is sometimes used as a preservative for dried apricots, dried figs, and other dried fruits, owing to its antimicrobial properties. As a preservative, it maintains the colorful appearance of the fruit and prevents rotting. It is also added to sulfured molasses.
Refrigeration	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

FAQ

FAQ 1.What is the MOQ? A: From one cylinder 2.What is the delivery time? A: 7-10 days Exwork after we receive the deposite, After we order ship pr air shipping, we could know total time to do delivery to customers country. 3.How do check the gas quality? A: Firstly, our team will do cylinders treatment(cleaning, drying, vacumm, pumping and replacement before filling gas to ensure the cylinder inside is clean and dry) Secongly, we will test treated cylindes again, to make sure the cylinder inside which is clean and dry. Thirdly, we will analyse the gas after filling into the cylindes and provide with COA(Certificate of Analysis) 4.Does all cylinders can be recyclable? A: Usually the working life of seamless steel cylinders is more than 20 years, The disposible cylindes can be used for only one time. 5.Can we send cylinders back to China and to refill gas? A: Yes, when your company run out of gas, you could send back the empty cylindes and refill the gas. You just need to inform us before your export, we will handle the cylinders customs cleanrance in China. 6.Cylinders and Valve standard Available A: Cylinder DOT-3AA ISO9809, GB5099, TC-3AAM. EN1964, KGS VALVE: DISS, CGA, DIN, BS, AFNOR, JIS. 7.Can I do LCL with my other common cargo? A: Our products belong to 2.2 level DG cargo and should shipping with DG cargo, if shipping as common cargo, it is inlegal, we should order DG cargo from shipping company, if you have other common products, you could put into the cargo and send as DG cargo.

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