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Basic Information
CAS No.: 7632-04-4
Name: Sodium perborate
Molecular Structure:
Molecular Structure of 7632-04-4 (Sodium perborate)
Formula: NaBO3
Molecular Weight: 81.799
Synonyms: Perboricacid (HBO(O2)), sodium salt (9CI);Perboric acid (HBO3), sodium salt (8CI);Sodium perborate (NaBO3) (6CI,7CI);Perborn;Sodium borate (NaBO3);Sodiumperborate;Sodium peroxoborate;
EINECS: 231-556-4
Melting Point: 60 °C
Appearance: white granular powder
Hazard Symbols: OxidizingO,HarmfulXn
Risk Codes: 8-22-36/37/38
Safety: 17-25-26-37/39
PSA: 48.12000
LogP: -0.63640
Synthetic route
7775-19-1

sodium metaborate

sodium percarbonate

7632-04-4

sodium perborate

Conditions
ConditionsYield
byproducts: Na2CO3;
byproducts: Na2CO3;

sodium hydroperoxide

11113-50-1

boric acid

7632-04-4

sodium perborate

Conditions
ConditionsYield
byproducts: H2O;
byproducts: water;
11113-50-1

boric acid

7632-04-4

sodium perborate

Conditions
ConditionsYield
With sodium peroxide; dihydrogen peroxide byproducts: H2O;
With sodium hydroxide; dihydrogen peroxide byproducts: H2O;
With sodium peroxide; dihydrogen peroxide byproducts: H2O;

Sodium borate

7632-04-4

sodium perborate

Conditions
ConditionsYield
With sodium hydroxide; dihydrogen peroxide byproducts: H2O;
With water; dihydrogen peroxide; sodium carbonate byproducts: NaHCO3, H2O; at higher concentration the conversion is 50% to the right side;
With water; dihydrogen peroxide; sodium carbonate byproducts: NaHCO3, H2O;
With sodium hydroxide; dihydrogen peroxide byproducts: H2O;
With water; dihydrogen peroxide; sodium carbonate byproducts: NaHCO3, H2O;
7775-19-1

sodium metaborate

7632-04-4

sodium perborate

Conditions
ConditionsYield
With dihydrogen peroxide byproducts: H2O;
7632-04-4

sodium perborate

65896-11-9

2-bromo-6-fluoroaniline

886762-70-5

1‐bromo‐3‐fluoro‐2‐nitrobenzene

Conditions
ConditionsYield
In water; acetic acid at 55℃; for 4h;
7632-04-4

sodium perborate

mercury(II) oxide

Conditions
ConditionsYield
0%
7632-04-4

sodium perborate

gold(III)

Conditions
ConditionsYield
In not given
Downstream Products
886762-70-5
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Chemistry

Molecular Structure of Sodium perborate (CAS NO.7632-04-4):

IUPAC Name: sodium oxidooxy(oxo)borane 
Empirical Formula: NaBO3
Molecular Weight: 81.799
CAS Registry Number: 7632-04-4
EINECS: 231-556-4
H bond acceptors: 3
H bond donors: 1
Freely Rotating Bonds: 2
Polar Surface Area: 46.53Å2
EINECS: 231-556-4
Melting point: 60°C
Product Categories: Inorganics
InChI
InChI=1/BHO3.Na/c2-1-4-3;/h3H;/q;+1/p-1
Smiles
O(B=O)[O-].[Na+]

Production

  Sodium perborate (CAS NO.7632-04-4) is manufactured by reaction of disodium tetraborate pentahydrate, hydrogen peroxide, and sodium hydroxide.

Toxicity Data With Reference

1.    

mmo-sat 1 mg/plate

    MUREAV    Mutation Research. 224 (1989),219.
2.    

dnr-esc 3300 pmol/plate

    MUREAV    Mutation Research. 21 (1973),171.
3.    

cyt-ham:ovr 10 mg/L

    MUREAV    Mutation Research. 224 (1989),219.
4.    

orl-mus LD50:3250 mg/kg

    SKEZAP    Shokuhin Eiseigaku Zasshi. Journal of the Food Hygiene Society of Japan. 27 (1986),553.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic vapors of B and NaO.
Hazard Codes: HarmfulXn,OxidizingO
Risk Statements: 8-22-36/37/38
R8 :Contact with combustible material may cause fire. 
R22:Harmful if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 17-25-26-37/39
S17:Keep away from combustible material. 
S25:Avoid contact with eyes. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection.

Specification

  Sodium perborate , with CAS number of 7632-04-4, can be called UNII-Y52BK1W96C ; Dexol Perboric acid (HBO(O2)), sodium salt . Sodium perborate (CAS NO.7632-04-4) serves as a source of active oxygen in many detergents, laundry detergents, cleaning products, and laundry bleaches.It is also present in some tooth bleaching formulas. It is used as a bleaching agent for internal bleaching of a non vital root treated tooth. Sodium perborate is also used as a "disappearing" preservative in some brands of eye drops.