Dipotassium;sulfonatooxy sulfate

K2O8S2

dipotassium;sulfonatooxy sulfate

CAS7727-21-1
GHS03 Gefahrensymbol: Brandfördernd – Flamme über Kreis
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
Danger

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Identification

CAS Number
7727-21-1
EC Number
231-781-8
UN Number
1492
Index Number
016-061-00-1
PubChem CID
24412

Physical-chemical properties

Molecular Formula
K2O8S2
Molar Mass
270.33 g/mol
IUPAC Name
dipotassium;sulfonatooxy sulfate

Chemical Identifiers

InChI
InChI=1S/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
InChI Key
USHAGKDGDHPEEY-UHFFFAOYSA-L

Overview

Dipotassium sulfonatooxy sulfate (CAS 7727-21-1) is an inorganic oxidizing compound with strong oxidative properties and industrial bleaching capabilities. This potassium-based persulfate compound, with the molecular formula K2O8S2, serves as a powerful oxidizing agent in various industrial applications. With a molecular weight of 270.33 g/mol and EC number 231-781-8, dipotassium sulfonatooxy sulfate exhibits significant oxidative potential that makes it valuable across multiple sectors. The compound belongs to the persulfate family of chemicals, sharing similar oxidizing characteristics with other industrial oxidants like potassium permanganate, though offering distinct advantages in specific applications. The substance presents important safety considerations, classified under multiple hazard categories including Oxidizing Solid Category 3 and Acute Toxicity Category 4. Its danger classification requires careful handling protocols, as indicated by GHS pictograms GHS03, GHS07, and GHS08. The compound can cause skin and eye irritation, respiratory sensitization, and specific target organ toxicity. Its ADR classification as Class 5.1 reflects its oxidizing nature and associated transport requirements. Primary industrial applications include textile bleaching processes, where its controlled oxidative action provides effective whitening without excessive fabric degradation. The compound also finds use in polymer initiation reactions and water treatment applications, where its oxidizing properties help break down organic contaminants. Additionally, it serves in metal surface treatment processes, offering reliable oxidative cleaning capabilities. As a specialized technical chemical distributor, OYSI maintains reliable supply chains for dipotassium sulfonatooxy sulfate to support European industrial requirements across these diverse application areas.

Safety & Classification

Danger
Classification:

Ox. Sol. 3; Acute Tox. 4 *; STOT SE 3; Skin Irrit. 2; Eye Irrit. 2; Resp. Sens. 1; Skin Sens. 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H272

May intensify fire; oxidiser.

H302

Harmful if swallowed.

H335

May cause respiratory irritation.

H315

Causes skin irritation.

H319

Causes serious eye irritation.

H334

May cause allergy or asthma symptoms or breathing difficulties if inhaled.

H317

May cause an allergic skin reaction.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

Skin Contact

Irritant

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Irritant

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number1492
ADR Class5.1
Packing GroupIII
Tunnel CodeE
Proper Shipping NameKaliumpersulfat
Marine PollutantNo

Frequently Asked Questions

What is dipotassium sulfonatooxy sulfate?

Dipotassium sulfonatooxy sulfate is an inorganic chemical compound with the molecular formula K2O8S2 and CAS number 7727-21-1. This substance has a molecular weight of 270.33 g/mol and belongs to the oxidizing solids category. It is classified as a hazardous chemical with multiple safety concerns including oxidizing properties, acute toxicity, skin and eye irritation, and respiratory sensitization potential, requiring careful handling in industrial applications.

What are the physicochemical properties of dipotassium sulfonatooxy sulfate?

Dipotassium sulfonatooxy sulfate is a solid oxidizing compound at room temperature with the molecular formula K2O8S2. As an inorganic salt containing potassium and sulfur-oxygen groups, it typically appears as a crystalline solid. The compound has oxidizing properties due to its chemical structure, which makes it reactive with combustible materials. Its exact physical appearance, solubility, and other specific properties depend on purity and crystalline form.

What is dipotassium sulfonatooxy sulfate used for?

Dipotassium sulfonatooxy sulfate is primarily used in industrial applications where oxidizing properties are required. As an oxidizing agent, it finds applications in chemical synthesis, bleaching processes, and as a component in specialized chemical formulations. Its oxidizing characteristics make it valuable in industries requiring controlled oxidation reactions, though specific applications depend on the exact formulation and purity requirements of the end-use process.

How to handle dipotassium sulfonatooxy sulfate safely?

Dipotassium sulfonatooxy sulfate requires careful handling due to its oxidizing properties and multiple health hazards. Personal protective equipment must include respiratory protection (due to respiratory sensitization), chemical-resistant gloves, and eye protection. Work areas should be well-ventilated to prevent inhalation exposure. Avoid contact with combustible materials due to oxidizing properties, and prevent skin contact as it can cause irritation and sensitization. Handle only in designated chemical handling areas.

How to store dipotassium sulfonatooxy sulfate correctly?

Dipotassium sulfonatooxy sulfate must be stored in a cool, dry, well-ventilated area away from heat sources and combustible materials. As an oxidizing solid (Class 5.1), it should be segregated from flammable substances, organic materials, and reducing agents. Storage containers must be tightly sealed and made of compatible materials. Keep away from sources of ignition and ensure storage areas comply with local regulations for oxidizing substances.

What to do in case of contact with dipotassium sulfonatooxy sulfate?

Dipotassium sulfonatooxy sulfate contact requires immediate action due to its irritating and sensitizing properties. For skin contact, immediately remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. In case of eye contact, flush thoroughly with water and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets for specific first aid measures.

How to dispose of dipotassium sulfonatooxy sulfate appropriately?

Dipotassium sulfonatooxy sulfate disposal must comply with local and national hazardous waste regulations due to its classification as an oxidizing solid. The substance cannot be disposed of with regular waste and requires specialized hazardous waste treatment. Contact licensed waste disposal companies familiar with oxidizing chemicals. Small quantities should be neutralized according to established procedures before disposal. Never mix with other chemicals during disposal to prevent dangerous reactions.

How to transport dipotassium sulfonatooxy sulfate?

Dipotassium sulfonatooxy sulfate is classified under ADR Class 5.1 (Oxidizing Substances) Packing Group III for transport purposes. This classification requires specific packaging, labeling, and documentation according to dangerous goods regulations. Packages must display appropriate hazard labels and be constructed to prevent leakage. Transport vehicles must comply with ADR requirements for Class 5.1 substances, and drivers need appropriate dangerous goods training certificates.

Is dipotassium sulfonatooxy sulfate subject to specific regulations?

Dipotassium sulfonatooxy sulfate is subject to multiple European regulations including REACH registration requirements and CLP classification and labeling obligations. It carries GHS pictograms GHS03, GHS07, and GHS08, with the signal word 'Danger'. The substance is not currently listed as a Substance of Very High Concern (SVHC). Companies must comply with occupational safety regulations, environmental protection laws, and proper classification requirements when handling this oxidizing chemical.

Where to buy dipotassium sulfonatooxy sulfate in Europe?

Dipotassium sulfonatooxy sulfate is available through OYSI, a European distributor of technical chemicals specializing in hazardous and specialty compounds. OYSI provides this oxidizing chemical with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures appropriate packaging and transport according to ADR Class 5.1 requirements, serving industrial customers across Europe with reliable supply and technical support.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.