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403016

Sigma-Aldrich

Sodium chlorate

ACS reagent, ≥99.0%

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About This Item

Linear Formula:
NaClO3
CAS Number:
7775-09-9
Molecular Weight:
106.44
EC Number:
231-887-4
MDL number:
MFCD00003479
UNSPSC Code:
12352302
PubChem Substance ID:
329755976
NACRES:
NA.21

grade

ACS reagent

Agency

suitable for EPA 300

Assay

≥99.0%

form

powder or crystals

impurities

≤0.001% N compounds
≤0.005% insolubles

mp

248-261 °C (lit.)

solubility

water: soluble

anion traces

bromate (BrO3-): ≤0.015%
chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.001%

cation traces

Ca: ≤0.005%
Fe: ≤5 ppm
K: ≤0.01%
Mg: ≤0.002%
heavy metals (as Pb): ≤0.001%

SMILES string

[Na+].[O-]Cl(=O)=O

InChI

1S/ClHO3.Na/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1

InChI key

YZHUMGUJCQRKBT-UHFFFAOYSA-M

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General description

Sodium chlorate is a hygroscopic, achiral ionic compound which on crystallization forms two enantiomeric chiral crystals. It is reported to be a probable byproduct of the drinking water disinfectant, chlorine dioxide (ClO2). d-sodium chlorate may be utilized as chiral initiators in the synthesis of (S)-5-pyrimidyl alkanols. Commercial production of sodium chlorate is by anodic oxidation of NaCl. It finds application as herbicide, oxidizing agent and as a starting material in the synthesis of sodium perchlorate.

Application

Sodium chlorate may be used as an oxidizing agent to abstract zinc from sphalerite.

Biochem/physiol Actions

sulfation biosynthesis inhibitor

Signal Word

Danger

Hazard Statements

H271,H302,H411

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Ox. Sol. 1

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Highly enantioselective asymmetric autocatalysis induced by chiral ionic crystals of sodium chlorate and sodium bromate.
Sato I, et al.
J. Mol. Catal. A: Chem., 216(2), 209-214 (2004)
Asymmetric synthesis of optically active sodium chlorate and bromate crystals.
Pagni RM and Compton RN.
Crystal Growth & Design, 2(4), 249-253 (2002)
Kinetics of sphalerite dissolution by sodium chlorate in hydrochloric acid.
Uca G.
Hydrometallurgy, 95(1), 39-43 (2009)
Chiral symmetry breaking during crystallization: complete chiral purity induced by nonlinear autocatalysis and recycling.
Viedma C.
Physical Review Letters, 94(6), 065504-065504 (2005)
Eagleson M
Concise Encyclopedia Chemistry, 996-996 (1994)
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