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77310

Sigma-Aldrich

Periodic acid

puriss. p.a., ACS reagent, for oxidimetric titration, crystallized, ≥99.0% (RT)

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About This Item

Empirical Formula (Hill Notation):
H5IO6
CAS Number:
10450-60-9
Molecular Weight:
227.94
EC Number:
233-937-0
MDL number:
MFCD00011344
UNSPSC Code:
12352106
PubChem Substance ID:
329767603
NACRES:
NA.21

grade

ACS reagent
for oxidimetric titration
puriss. p.a.

Assay

≥99.0% (RT)

form

powder or crystals

quality

crystallized

ign. residue

≤0.01% (as SO4)

mp

122 °C (lit.)

solubility

water: soluble

anion traces

bromide, bromate, chloride, chlorate (as Cl-): ≤100 mg/kg
iodide (I-): ≤10 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Ag: ≤5 mg/kg
Al: ≤5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤30 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤10 mg/kg
Sr: ≤5 mg/kg
Tl: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

OI(O)(O)(O)(O)=O

InChI

1S/H5IO6/c2-1(3,4,5,6)7/h(H5,2,3,4,5,6,7)

InChI key

TWLXDPFBEPBAQB-UHFFFAOYSA-N

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General description

Periodic acid (H5IO6) is a colorless crystalline solid. It is widely employed as an oxidant and is weakly acidic in nature. It can be synthesized from iodic(V) acid.

Application

Periodic acid may be used in the synthesis of diiodine heptoxide (I2O7). It may be used in the Periodic acid Schiff staining procedures.

Other Notes

for the histochemical detection of polysaccharides

Signal Word

Danger

Hazard Statements

H271,H314,H372,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Ox. Sol. 1 - Skin Corr. 1B - STOT RE 1 Oral

Target Organs

Thyroid

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 3

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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