CAS 7789-09-5|Ammonium dichromate|Ammonium bichromate|diammonium [(oxidodioxochromio)oxy]chromiumoylolate|Ammonium pyrochromate|diammonium chromate|重铬酸铵, ACS|重铬酸铵|Ammonium dichromate|Ammoniu...

Molecular Formula

Cr₂H₈N₂O₇

Molecular Mass

252.06492

Exact Mass

251.91416561

InChI

InChI=1S/2Cr.2H3N.7O/h;;2*1H3;;;;;;;/q;;;;;;;;;2*-1/p+2

InChIKey

JOSWYUNQBRPBDN-UHFFFAOYSA-P

Canonic Smiles

[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[NH4+].[NH4+]

Isomeric Smiles

[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[NH4+].[NH4+]

JChem

Acid pKa

-2.30103

H Acceptors

H Donor

LogD (pH = 5.5)

-8.234395

LogD (pH = 7.4)

-8.2344

Log P

-3.7068

Molar Refractivity

10.0076

Polarizability

11.546313

Polar Surface Area

123.63

Rotatable Bonds

Lipinski's Rule of Five

true

Commercial Catalog

Alfa Aesar

13444

43180

Synonyms

Ammonium dichromateAmmonium bichromateAmmonium pyrochromate重铬酸铵, ACS重铬酸铵Ammonium dichromateAmmonium dichromate, ACS

IUPAC name

diammonium [(oxidodioxochromio)oxy]chromiumoylolate

IUPAC Traditional name

diammonium chromate

Wikipedia Title

CAS Number

PubChem SID

MDL Number

GHS Pictograms

Oxidizing gases, category 1

Oxidizing liquids, categories 1,2,3

Corrosive to metals, category 1

Skin corrosion, categories 1A,1B,1C

Serious eye damage, category 1

Respiratory sensitization, category 1

Germ cell mutagenicity, categories 1A,1B,2

Carcinogenicity, categories 1A,1B,2

Reproductive toxicity, categories 1A,1B,2

Specific Target Organ Toxicity – Single exposure, categories 1,2

Specific Target Organ Toxicity – Repeated exposure, categories 1,2

Aspiration Hazard, category 1

Acute toxicity (oral, dermal, inhalation), categories 1,2,3

Hazardous to the aquatic environment

Acute hazard, category1

Chronic hazard, categories 1,2

Unstable explosives

Explosives of Divisions 1.1, 1.2, 1.3, 1.4

Self reactive substances and mixtures, Types A,B

Organic peroxides, Types A,B

S53,S45,S60,S61

53-45-60-61

1439

UN1439

R45,R46,R60,R61,R2,R8,R21,R25,R26,R34,R42/43,R48/23,R50/53

201,220,260,273,280,284

P221-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P361-P373-P401A-P405-P501A

272,301,312,314,317,330,334,340,350,360,372,410

H200-H272-H300-H311-H330-H317-H334-H340-H350-H360-H372-H314-H318-H400-H410

Physical Property

Orange-red crystals

Crystalline

190 °C

soluble in alcohol

18.2 g/100 mL (0 °C)
26.67 g/100 mL (20 °C)
156 g/100 mL (100 °C) in water

insoluble in acetone

Product Information

99.5% min

99.999% (metals basis)

No Data Available

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No Data Available

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No Data Available

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Commercial Catalog

Alfa Aesar

13444

43180

Synonyms

Ammonium dichromateAmmonium bichromateAmmonium pyrochromate重铬酸铵, ACS重铬酸铵Ammonium dichromateAmmonium dichromate, ACS

IUPAC name

diammonium [(oxidodioxochromio)oxy]chromiumoylolate

IUPAC Traditional name

diammonium chromate

No Data Available

Click here to submit data

Wikipedia Title

CAS Number

PubChem SID

MDL Number

No Data Available

Click here to submit data

Safety Information

Physical Property

Orange-red crystals

Crystalline

190 °C

soluble in alcohol

18.2 g/100 mL (0 °C)
26.67 g/100 mL (20 °C)
156 g/100 mL (100 °C) in water

insoluble in acetone

Product Information

99.5% min

99.999% (metals basis)

45-46-60-61-2-8-21-25-26-34-42/43-48/23-50/53

Freely soluble in water

180 °C (decomp.)

170°C dec.

Molecule

ID:125818