Sodium percarbonate

Sodium percarbonate
Names

IUPAC name sodium carbonate—hydrogen peroxide (2/3)
Other names sodium carbonate sesquiperhydrate, PCS, solid hydrogen peroxide, Sodium carbonate hydrogen peroxide, sodium carbonate peroxyhydrate
Identifiers
CAS Number	15630-89-4^Y
3D model (Jmol)	Interactive image
ChemSpider	140471^N
ECHA InfoCard	100.036.082
EC Number	239-707-6
PubChem	159762
RTECS number	FG0750000
UNII	Z7G82NV92P^N
InChI InChI=1S/CH2O4.Na/c2-1(3)5-4;/h4H,(H,2,3);/q;+1/p-1^Y Key: MWNQXXOSWHCCOZ-UHFFFAOYSA-M^Y InChI=1S/CH2O4.Na/c2-1(3)5-4;/h4H,(H,2,3);/q;+1/p-1 Key: MWNQXXOSWHCCOZ-REWHXWOFAO Key: MWNQXXOSWHCCOZ-UHFFFAOYSA-M
SMILES [Na+].[O-]C(=O)OO
Properties
Chemical formula	Na₂CO₃·1.5 H₂O₂
Molar mass	156.982 g/mol
Appearance	white solid
Solubility in water	150 g/l
Hazards
Main hazards	Irritant, Oxidizer
Flash point	Non-flammable
Related compounds
Other anions	Sodium carbonate Sodium bicarbonate
Other cations	Calcium percarbonate Magnesium percarbonate
Related compounds	Sodium perborate Sodium persulfate Sodium perphosphate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N (what is ^YN ?)
Infobox references

Sodium percarbonate is a chemical, an adduct of sodium carbonate and hydrogen peroxide (a perhydrate), with formula 2 Na₂CO₃•3 H₂O₂. It is a colorless, crystalline, hygroscopic and water-soluble solid. It is used in some eco-friendly cleaning products and as a laboratory source of anhydrous hydrogen peroxide.

At room temperature, solid sodium percarbonate has the orthorhombic crystal structure, with the Cmca crystallographic space group. The structure changes to Pbca as the crystals are cooled below about −30 °C.

Sodium percarbonate was first prepared in 1899 by Russian chemist Sebastian Moiseevich Tanatar (Севастьян Моисеевич Танатар) (7 October 1849, Odessa, Russia – 30 November 1917, Odessa, Russia).

Sodium percarbonate is produced industrially by reaction of sodium carbonate and hydrogen peroxide, followed by crystallization. Also, dry sodium carbonate may be treated directly with concentrated hydrogen peroxide solution. World production capacity of this compound was estimated at several hundred thousand tonnes for 2004. It can be obtained in the laboratory by treating the two substances in aqueous solution with proper control of the pH or concentrations.

As an oxidizing agent, sodium percarbonate is an ingredient in a number of home and laundry cleaning products, including non-chlorine bleach products such as OxyBoost, OxiClean, Tide laundry detergent, and Vanish. Dissolved in water, it yields a mixture of hydrogen peroxide (which eventually decomposes to water and oxygen) and sodium carbonate ("soda ash"). Many commercial products mix a percentage of sodium percarbonate with sodium carbonate (washing soda). The average percentage of an "Oxy" product in the supermarket is 65 percent sodium percarbonate and 35 percent washing soda. The "ultra boosters" seen on infomercials may contain as much as 80 percent sodium percarbonate. However, sodium percarbonate is less expensive in its pure form and can be adjusted to any percentage the user desires.

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