Basic information
- CAS
13932-13-3- Standard SMILES
O=S(=O)([O-])SSS(=O)(=O)[O-].[K+].[K+]- InChIKey
UVTKHPSJNFFIDG-UHFFFAOYSA-L- Molecular formula
- K2O6S4
- Average molar mass
- 302.5 g/mol
- Monoisotopic mass
- 301.7851854
Overview
Potassium tetrathionate is a potassium salt composed of potassium and tetrathionate ions in a 2:1 ratio. It contains a tetrathionate(2-).
Names & identifiers
- Preferred name
- Potassium Tetrathionate
- English name
- Potassium tetrathionate
- Molecular formula
- K2O6S4
- Molecular weight
- 302.45
Names & synonyms
Potassium tetrathionate13932-13-3Dipotassium tetrathionateTetrathionic acid, dipotassium saltTetrathionic acid, potassium salt (1:2)8X6V5C8FZ9DTXSID9047043Tetrathionate, PotassiumDTXCID7027043CHEBI:86466RefChem:175623237-702-3
Show more names
TetrathionsaeurePOTASSIUM TETRATHIONPotassium TetrethionatedipotassiumtetrathionatePotassium tetrathionate 99%minTetrathionicacid,dipotassiumsalt
POTASSIUMTETRATHIONATECaswell No. 702AEINECS 237-702-3UNII-8X6V5C8FZ9MFCD00079233EPA Pesticide Chemical Code 075903Potassium tetrathionate [K2S406]POTASSIUM TETRATHIONATE (K2S4O6)
Database identifiers
- CAS
13932-13-3- PubChem CID
- 61701
- DTXSID
DTXSID9047043- ChEMBL
CHEMBL3187989- ChEBI
CHEBI:86466- UNII
- 8X6V5C8FZ9
Properties
Computed structural properties
- Topological polar surface area
- 182 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 8
- Rotatable bonds
- 1
- Heavy atoms
- 12
- Formal charge
- 0
- Complexity
- 208
Experimental & physicochemical properties
Physical DescriptionDry Powder
Physicochemical properties
- Density
- 2.96 g/mL · 2.96 g/mL at 25 °C (lit.)
- bulk density
- 770 kg/m3 · 770kg/m3
- storage temp.
- 2 · 2-8°C
- solubility
- 232 g/l · 232g/l
- form
- solid
- Appearance
- Off-white to yellow Solid
- Water Solubility
- 232 g/L · 232g/L
- Cosmetics Ingredients Functions
- REDUCING
- InChI
- InChI=1S/2K.H2O6S4/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
- InChIKey
- UVTKHPSJNFFIDG-UHFFFAOYSA-L
- SMILES
- S([O-])(=O)(=O)SSS([O-])(=O)=O.[K+].[K+]
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 8 X6V5C8FZ9 · 8X6V5C8FZ9
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 4.9% (2 of 41) of reports.
Warning
H315 (95.1%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 41 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Tetrathionic acid, dipotassium salt
Tetrathionic acid, potassium salt (1:2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Tetrathionic acid, potassium salt (1:2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Hazard Classes and CategoriesSkin Irrit. 2 (95.1%)
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- XF6450000
- hs_code
- 2842 90 80
- Toxicity
- LD50 orally in Rabbit: > 2000 mg/kg
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
Chemistry & industry
Pharmacology
MeSH Pharmacological Classification
Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499)
Uses & manufacturing
U.S. Production2023: <50,000 lb
Industry UsesNot Known or Reasonably Ascertainable
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
Tetrathionic acid, potassium salt (1:2): ACTIVE
Applications
UsesUsed in the preparation of tetrathionate hydrolase assay from Acidithiobacillus caldus, it acts as an energy source.
General DescriptionThe crystal structure of potassium tetrathionate is monoclinic with a=22.081o, b=7.991o, c=10.108o
Preparation methods
PreparationPotassium tetrathionate is prepared by a similar reaction—the reaction of S2Cl2 with sulphurous acid, followed by KOH neutralization, as shown by the equations. 2H2S03 + S2C12->H2S406+2HCl H2S406+2KOH -> K2S406 + 2H2O or by the reaction of iodine with K2S2O3. 2K2S203 + I2 -> K2S406+2KI. The reaction is carried out in an ethanol-water mixture, a medium in which the potassium tetrathionate is insoluble; the K2S406 precipitates as colorless shiny platelets.
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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