Sodium perborate

Sodium perborate
Names
	Other names Sodium peroxoborate, PBS-1 ("monohydrate"), PBS-4 ("tetrahydrate")
Identifiers
CAS Number	7632-04-4 ; 10332-33-9 ("monohydrate") ; 10486-00-7 ("tetrahydrate") ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30178 ;
ChemSpider	4574023 ;
ECHA InfoCard	100.035.597
EC Number	231-556-4;
PubChem CID	5460514;
RTECS number	SC7350000;
UNII	Y52BK1W96C ; Y9UKD0XE6F ("monohydrate") ; 822HSQ655R ("tetrahydrate") ;
UN number	1479
	InChI InChI=1S/B2H4O8.2Na/c3-1(4)7-9-2(5,6)10-8-1;;/h3-6H;;/q-2;2+1 Key: JBUKJLNBQDQXLI-UHFFFAOYSA-N ; InChI=1/B2H4O8.2Na/c3-1(4)7-9-2(5,6)10-8-1;;/h3-6H;;/q-2;2+1 Key: JBUKJLNBQDQXLI-UHFFFAOYAG;
	SMILES [Na+].[Na+].O[B-]1(OO[B-](O)(O)OO1)O;
Properties
Chemical formula	NaBO3·nH2O
Molar mass	99.815 g/mol ("monohydrate");; 153.86 g/mol ("tetrahydrate")
Appearance	White powder
Odor	Odorless
Melting point	63 °C (145 °F; 336 K) ("tetrahydrate")
Boiling point	130 to 150 °C (266 to 302 °F; 403 to 423 K) ("tetrahydrate", decomposes)
Solubility in water	2.15 g/(100 mL) ("tetrahydrate", 18 °C)
Pharmacology
ATC code	A01AB19 (WHO)
Hazards
NFPA 704 (fire diamond)	1 1 0
Flash point	Non-flammable
Safety data sheet (SDS)	ICSC 1046
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Sodium perborate is chemical compound whose chemical formula may be written NaH₂BO₄, Na₂H₄B₂O₈, or, more properly, [Na⁺]₂[B₂O₄(OH)₄]²⁻. Its name is sometimes abbreviated as PBS (not to be confused with phosphate-buffered saline).

The compound is commonly encountered in anhydrous form or as a hexahydrate (commonly called "monohydrate" or PBS-1 and "tetrahydrate" or PBS-4, after the early assumption that NaBO₃ would be the anhydrous form).^[2] They are both white, odorless, water-soluble solids.^[3]

This salt is widely used in laundry detergents, as one of the peroxide-based bleaches.

Sodium perborate was first obtained in 1898, independently, by Sebastian Tanatar and by P. Melikoff and L. Pissadewsky; the researchers prepared sodium perborate by treating sodium borate with a solution of hydrogen peroxide and sodium hydroxide, but Tanatar also obtained sodium perborate by electrolysis of a solution of sodium borate.^[4]^[5]^[6]

^ Harald Jakob; et al. "Peroxy Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_177.pub2. ISBN 978-3527306732.
^ Alexander McKillop and William R Sanderson (1995): "Sodium perborate and sodium percarbonate: Cheap, safe and versatile oxidising agents for organic synthesis". Tetrahedron, volume 51, issue 22, pages 6145-6166. doi:10.1016/0040-4020(95)00304-Q
^ B.J. Brotherton "Boron: Inorganic Chemistry" in Encyclopedia of Inorganic Chemistry (1994) Ed. R. Bruce King, John Wiley & Sons ISBN 0-471-93620-0
^
Tanatar, S. (1898). "Perborate und ihre Konstitution" [Perborates and their composition]. Zeitschrift für physikalische Chemie (Journal for Physical Chemistry) (in German). 26: 132–134.
- Tanatar, S. (1898). "Notiz über Perborate" [Notice about perborates]. Zeitschrift für physikalische Chemie (in German). 29: 162–166.
- Tanatar, S. (1901). "Über Perborate" [About perborates]. Zeitschrift für anorganische und allgemeine Chemie (Journal for Inorganic and General Chemistry) (in German). 26: 345–347.
^ Melikoff, P.; Pissadewsky, L. (1898). "Hypertitanate und Hyperborate". Berichte der Deutschen Chemischen Gesellschaft (in German). 31: 678–680.
^ Jakob, Harold; Leininger, Stefan; Lehmann, Thomas; Jacobi, Sylvia; Gutewort, Sven (2007). "Ch. 26: Peroxo Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Vol. A19. Hoboken, New Jersey, USA: Wiley‐VCH Verlag GmbH & Co. pp. 293–324. doi:10.1002/14356007.a19_177.pub2. See p. 299.

[Ullmann-1] Harald Jakob; et al. "Peroxy Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_177.pub2. ISBN 978-3527306732.

[killop-2] Alexander McKillop and William R Sanderson (1995): "Sodium perborate and sodium percarbonate: Cheap, safe and versatile oxidising agents for organic synthesis". Tetrahedron, volume 51, issue 22, pages 6145-6166. doi:10.1016/0040-4020(95)00304-Q

[Brotherton-3] B.J. Brotherton "Boron: Inorganic Chemistry" in Encyclopedia of Inorganic Chemistry (1994) Ed. R. Bruce King, John Wiley & Sons ISBN 0-471-93620-0

[4] Tanatar, S. (1898). "Perborate und ihre Konstitution" [Perborates and their composition]. Zeitschrift für physikalische Chemie (Journal for Physical Chemistry) (in German). 26: 132–134.
Tanatar, S. (1898). "Notiz über Perborate" [Notice about perborates]. Zeitschrift für physikalische Chemie (in German). 29: 162–166.

Tanatar, S. (1901). "Über Perborate" [About perborates]. Zeitschrift für anorganische und allgemeine Chemie (Journal for Inorganic and General Chemistry) (in German). 26: 345–347.

[5] Tanatar, S. (1898). "Notiz über Perborate" [Notice about perborates]. Zeitschrift für physikalische Chemie (in German). 29: 162–166.

[6] Tanatar, S. (1901). "Über Perborate" [About perborates]. Zeitschrift für anorganische und allgemeine Chemie (Journal for Inorganic and General Chemistry) (in German). 26: 345–347.

[5] Melikoff, P.; Pissadewsky, L. (1898). "Hypertitanate und Hyperborate". Berichte der Deutschen Chemischen Gesellschaft (in German). 31: 678–680.

[6] Jakob, Harold; Leininger, Stefan; Lehmann, Thomas; Jacobi, Sylvia; Gutewort, Sven (2007). "Ch. 26: Peroxo Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. Vol. A19. Hoboken, New Jersey, USA: Wiley‐VCH Verlag GmbH & Co. pp. 293–324. doi:10.1002/14356007.a19_177.pub2. See p. 299.

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Names

Other names Sodium peroxoborate,^[1] PBS-1 ("monohydrate"), PBS-4 ("tetrahydrate")
Identifiers
CAS Number	7632-04-4^Y 10332-33-9 ("monohydrate")^Y 10486-00-7 ("tetrahydrate")^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:30178^Y
ChemSpider	4574023^Y
ECHA InfoCard	100.035.597
EC Number	231-556-4
PubChem CID	5460514
RTECS number	SC7350000
UNII	Y52BK1W96C^Y Y9UKD0XE6F ("monohydrate")^Y 822HSQ655R ("tetrahydrate")^Y
UN number	1479
InChI InChI=1S/B2H4O8.2Na/c3-1(4)7-9-2(5,6)10-8-1;;/h3-6H;;/q-2;2+1^Y Key: JBUKJLNBQDQXLI-UHFFFAOYSA-N^Y InChI=1/B2H4O8.2Na/c3-1(4)7-9-2(5,6)10-8-1;;/h3-6H;;/q-2;2+1 Key: JBUKJLNBQDQXLI-UHFFFAOYAG
SMILES [Na+].[Na+].O[B-]1(OO[B-](O)(O)OO1)O
Properties
Chemical formula	NaBO₃·nH₂O
Molar mass	99.815 g/mol ("monohydrate"); 153.86 g/mol ("tetrahydrate")
Appearance	White powder
Odor	Odorless
Melting point	63 °C (145 °F; 336 K) ("tetrahydrate")
Boiling point	130 to 150 °C (266 to 302 °F; 403 to 423 K) ("tetrahydrate", decomposes)
Solubility in water	2.15 g/(100 mL) ("tetrahydrate", 18 °C)
Pharmacology
ATC code	A01AB19 (WHO)
Hazards
NFPA 704 (fire diamond)	1 1 0
Flash point	Non-flammable
Safety data sheet (SDS)	ICSC 1046
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references