Sodium Persulfate
Basic information
- CAS
7775-27-1- Standard SMILES
O=S(=O)([O-])OOS(=O)(=O)[O-].[Na+].[Na+]- InChIKey
CHQMHPLRPQMAMX-UHFFFAOYSA-L- Molecular formula
- Na2S2O8
- Average molar mass
- 238.11 g/mol
- Monoisotopic mass
- 237.88299752
Overview
Sodium persulfate appears as a white crystalline solid. Very irritating to skin and eyes. May be toxic by skin absorption. Used as a bleaching agent.
Names & identifiers
- Preferred name
- Sodium Persulfate
- IUPAC
- disodium;sulfonatooxy sulfate
- English name
- Sodium persulfate
- Molecular formula
- Na2O8S2
- Molecular weight
- 238.1
Names & synonyms
Sodium persulfate7775-27-1Sodium peroxydisulfateSodium peroxodisulfatePeroxydisulfuric acid, disodium saltPersulfate de sodiumDTXSID4029698J49FYF16JEDisodium peroxydisulfatePeroxydisulfuric acid (((HO)S(O)2)2O2), disodium saltORISTAR SPDISODIUM PEROXODISULFATE
Show more names
Na2S2O8SODIUM PERSULPHATEPERSULPHATESpersulfatedesodiumSodiumPersulphateGrNatriumperoxodisulfatSodiumPersulphate,>98%
DTXCID009698Peroxydisulfuric acid (((HO)S(O)2)2O2), sodium salt (1:2)SODIUM PERSULFATE (NA2S2O8)RefChem:184069231-892-1Disodium peroxodisulphatedisodium;sulfonatooxy sulfatePersulfate de sodium [French]
Database identifiers
- CAS
7775-27-1- PubChem CID
- 62655
- DTXSID
DTXSID4029698- ChEMBL
CHEMBL502764- UNII
- J49FYF16JE
- EC Number
- 231-892-1
Properties
Computed structural properties
- Topological polar surface area
- 150 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 8
- Rotatable bonds
- 1
- Heavy atoms
- 12
- Formal charge
- 0
- Complexity
- 206
Experimental & physicochemical properties
Chemical Classes
Other Classes -> Inorganic Oxidizing Agents
Reactive agents - 1st degree
Cosmetics
Cosmetic ingredients (Sodium Persulfate) -> CIR (Cosmetic Ingredient Review)
Oxidising
Density
1.1 g/cm³
2.4 @25 °C
SolubilitySolubility in water, g/100ml at 20 °C: 55.6
Decomposition180 °C
Vapor Density1.1
Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Physical Description
Sodium persulfate appears as a white crystalline solid. Very irritating to skin and eyes. May be toxic by skin absorption. Used as a bleaching agent.
Dry Powder; Large Crystals; Liquid; Other Solid
White, solid; [Merck Index] Hygroscopic; [CHEMINFO] White odorless crystalline solid; [MSDSonline]
WHITE CRYSTALS OR POWDER.
White crystalline solid.
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 1.3% (42 of 3253) of reports.
Danger
H272 (94%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]
P210, P220, P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P333+P317, P337+P317, P342+P316, P362+P364, P370+P378, P403, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 3253 reports by companies from 49 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
Hazard information
Regulatory Information
Chemical: Peroxydisulfuric acid ([(HO)S(O)2]2O2), sodium salt (1:2)
Peroxydisulfuric acid ([(HO)S(O)2]2O2), sodium salt (1:2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Peroxydisulfuric acid ([(HO)S(O)2]2O2), sodium 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)
Status: Active Update: 20-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14767
Peroxydisulfuric acid, disodium salt: HSNO Approval: HSR001357 Approved with controls
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Other Safety InformationIMAP assessments - Peroxydisulfuric acid (((HO)S(O)2)2O2), disodium salt: Environment tier I assessment
DOT LabelOxidizer
Fire Hazards
Chemistry & industry
Uses & manufacturing
Uses
CIR ingredient: Sodium Persulfate
Used as a bleaching and oxidizing agent and polymerization catalyst; [Merck Index] Used in battery depolarizers; [Hawley] Used extensively for hair lightening and decolorizing; [eChemPortal: NICNAS]
Battery Manufacturing [Category: Industry]
U.S. Production2023: 850,000 - <1,000,000 lb
Consumer UsesPolymerization promoter
Industry UsesPlasticizer
Household ProductsInformation on 11 consumer products that contain Sodium persulfate in the following categories is provided:
Use Classification
EPA Safer Chemical Functional Use Classes -> Oxidants and Oxidant Stabilizers
Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
Cosmetics -> Oxidising
General Manufacturing Information
Textiles, apparel, and leather manufacturing
Peroxydisulfuric acid ([(HO)S(O)2]2O2), sodium salt (1:2): ACTIVE
Applications
UsesSodium persulfate is used as a bleach, both standalone (particularly in hair cosmetics) and as a detergent component. It is a replacement for ammonium persulfate in etching mixtures for zinc and printed circuit boards, and is used for pickling of copper and some other metals. It is a source of free radicals, making it useful as an initiator for e.g. emulsion polymerization reactions and for accelerated curing of low formaldehyde adhesives. Sodium persulfate is also used as a soil conditioner and in manufacture of dyestuffs, modification of starch, bleach activator, desizing agent for oxidative desizing, etc. For waste processing in the photographic industry, used as a soft metal surface corrosion agents of the printed circuit board and textile desizing agents, sulfur dyes colorformer.
Related reactions
113 records
Compound notes
Loading…