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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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

PRTR

Class I Designated Chemical Substances

FSL

Group 1: Oxidizing solids
Chlorates
Hazardous rank I
1st oxidizing solid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

403016-100G:4548173145778
403016-500G:4548173145785
403016-VAR:
403016-BULK:

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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Asymmetric synthesis of optically active sodium chlorate and bromate crystals.
Pagni RM and Compton RN.
Crystal Growth & Design, 2(4), 249-253 (2002)
Subchronic sodium chlorate exposure in drinking water results in a concentration-dependent increase in rat thyroid follicular cell hyperplasia.
Hooth MJ, et al.
Toxicologic Pathology, 29(2), 250-259 (2001)
Eagleson M
Concise Encyclopedia Chemistry, 996-996 (1994)
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)
Kinetics of sphalerite dissolution by sodium chlorate in hydrochloric acid.
Uca G.
Hydrometallurgy, 95(1), 39-43 (2009)
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