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403016

Sigma-Aldrich

Sodium chlorate

ACS reagent, ≥99.0%

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Linear Formula:
NaClO3
CAS Number:
Molecular Weight:
106.44
EC Number:
MDL number:
PubChem Substance ID:

grade

ACS reagent

Quality Level

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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1 of 4

This Item
24414724415571388
vibrant-m

403016

Sodium chlorate

Essential Grade
vibrant-m

244147

Sodium chlorate

-
vibrant-m

244155

Sodium chlorite

-
vibrant-m

71388

Sodium chlorite

-
solubility

water: soluble

solubility

-

solubility

-

solubility

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

assay

≥99.0%

assay

≥99%

assay

80%

assay

80% (RT)

cation traces

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

cation traces

-

cation traces

-

cation traces

Ag: ≤5 mg/kg, Al: ≤5 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤1000 mg/kg, Li: ≤5 mg/kg, Mg: ≤10 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Tl: ≤5 mg/kg, Zn: ≤5 mg/kg

anion traces

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

anion traces

-

anion traces

-

anion traces

-

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

signalword

Danger

Hazard Classifications

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

Storage Class

5.1A - Strongly oxidizing hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


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Kinetics of sphalerite dissolution by sodium chlorate in hydrochloric acid.
Uca G.
Hydrometallurgy, 95(1), 39-43 (2009)
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)
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)

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