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Bis(tetrabutylammonium) dichromate

CAS No.
56660-19-6
Chemical Name:
Bis(tetrabutylammonium) dichromate
Synonyms
TETRABUTYLAMMONIUM DICHROMATE;TBADC;BIS(TETRABUTYLAMMONIUM) DICHROMATE;Tetra-n-butylaMMoniuM dichroMate, 99%;BIS(TETRA-N-BUTYLAMMONIUM) DICHROMATE;TBADC, Tetrabutylammonium dichromate;Bis(tetrabutylammonium) dichromate 99%;Bis(tetrabutylammonium) Dichromate Bis(tetrabutylammonium) Dichromate,0.97;tetrabutylammonium, salt with chromic acid (2:1)
CBNumber:
CB2272092
Molecular Formula:
C32H72Cr2N2O7
Molecular Weight:
700.92
MDL Number:
MFCD00013104
MOL File:
56660-19-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 00:06:14

Bis(tetrabutylammonium) dichromate Properties

Melting point 139-143 °C (lit.)
solubility sol dichloromethane, chloroform.
form powder to crystaline
color Light yellow to Brown
Water Solubility Soluble in water.
Exposure limits OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3
InChI 1S/2C16H36N.2Cr.7O/c2*1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;;;;;;;;;/h2*5-16H2,1-4H3;;;;;;;;;/q2*+1;;;;;;;;2*-1
InChIKey MMKQSIQNDMIVIN-UHFFFAOYSA-N
SMILES [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC.CCCC[N+](CCCC)(CCCC)CCCC
UNSPSC Code 12352116
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame Over Circle (GHS03)Exclamation Mark (GHS07)Health Hazard (GHS08)Environment (GHS09)
GHS03,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H272-H317-H350-H410
Precautionary statements  P202-P210-P273-P280-P302+P352-P308+P313
PPE Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes  O,T,N
Risk Statements  49-8-43-50/53
Safety Statements  53-45-60-61
RIDADR  UN 1479 5.1/PG 2
WGK Germany  2
8
HazardClass  5.1
PackingGroup  III
HS Code  29319090
Storage Class 5.1B - Oxidizing hazardous materials
Hazard Classifications Aquatic Acute 1
Aquatic Chronic 1
Carc. 1B
Ox. Sol. 2
Skin Sens. 1
NFPA 704
1
2 0
OX

Bis(tetrabutylammonium) dichromate price More Price(27)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 223964 Bis(tetrabutylammonium) dichromate 99% 56660-19-6 10g $242 2026-04-30 Buy
TCI Chemical B1123 Bis(tetrabutylammonium) Dichromate [Oxidizing Reagent] >97.0%(T) 56660-19-6 10g $99 2026-04-30 Buy
Usbiological 267187 Bis(tetrabutylammonium) Dichromate Asreported 56660-19-6 5g $305 2026-06-03 Buy
Usbiological 267187 Bis(tetrabutylammonium) Dichromate Asreported 56660-19-6 10g $416 2026-06-03 Buy
Usbiological 267187 Bis(tetrabutylammonium) Dichromate Asreported 56660-19-6 25g $585 2026-06-03 Buy
Product number Packaging Price Buy
223964 10g $242 Buy
B1123 10g $99 Buy
267187 5g $305 Buy
267187 10g $416 Buy
267187 25g $585 Buy

Bis(tetrabutylammonium) dichromate Chemical Properties,Uses,Production

Uses

Reagent for:

  • Preparation of nitrophenol derivatives and quinones under aprotic reaction conditions
  • Conversion of oximes to carbonyl compounds under microwave irradiation

  • Catalyst precursor for catalytic gas phase dehydration of acetic acid to ketene
  • Crosslinking agent

Application

Bis(tetrabutylammonium) Dichromate (TBADC) is a mild selective oxidizing agent for benzylic and allylic alcohols[1]. It can oxidize carbon-halogen bonds[2].

Preparation

Preparative Method of Bis(tetrabutylammonium) Dichromate (TBADC): a concentrated aqueous solution (300 mL) of Potassium Dichromate (29.4 g, 0.1 mol) is added to a saturated aqueous solution (300 mL) of Tetra-n-butylammonium Bromide (64.4 g, 0.2 mol). TBADC precipitates and can be removed by filtration (62.8 g, 90% yield).

reaction suitability

reagent type: oxidant

storage

Bis(tetrabutylammonium) dichromate was reported to be a toxic agent. The reagent should be handled in a fume hood.

Purification Methods

Wash it with water and dry it in a vacuum. Recrystallise it from hexane (m 79-80o). [Santaniello & Ferraboschi Synth Commun 10 75 1980, Beilstein 4 IV 556.] (Possible CARCINOGEN.)

References

1. (a) Santaniello, E.; Ferraboschi, P. SC 1980, 10, 75. (b) Luzzio, F. A.; Guziec, F. S. OPP 1988, 20, 533.
2. Landini, D.; Rolla, F. CI(L) 1979, 213.

Bis(tetrabutylammonium) dichromate Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 61)Suppliers
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J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
Hunan Hui Bai Shi Biotechnology Co., Ltd. 0731-85526065 13308475853 ivy@hnhbsj.com China 7236 62
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80

View Lastest Price from Bis(tetrabutylammonium) dichromate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Bis(tetrabutylammonium) dichromate pictures 2020-01-08 Bis(tetrabutylammonium) dichromate
56660-19-6
$2.00 1KG 99 100kg Career Henan Chemical Co
Bis(tetrabutylammonium) dichromate 99% Bis(tetrabutylammonium) Dichromate  BIS(TETRA-N-BUTYLAMMONIUM) DICHROMATE BIS(TETRABUTYLAMMONIUM) DICHROMATE TBADC tetrabutylammonium, salt with chromic acid (2:1) Bis(tetrabutylammonium) Dichromate [Oxidizing Reagent] oxido-(oxido(dioxo)chromio)oxy-dioxochromium:tetrabutylazanium TBADC, Tetrabutylammonium dichromate Bis(tetra-n-butylammonium) Dichromate [Oxidizing Reagent] Tetra-n-butylaMMoniuM dichroMate, 99% Bis(tetrabutylammonium) Dichromate [Oxidizing Reagent]> Bis(tetrabutylammonium) Dichromate,0.97 Bis(Tetrabutylammonium) Dichromate,Tetrabutylammonium dichromate TETRABUTYLAMMONIUM DICHROMATE 56660-19-6 5660-19-6 CH3CH2CH2CH24N2Cr2O7 C32H72Cr2N2O7 2C16H36NCr2O7 Synthetic Reagents Cr (Chromium) Compounds Oxidation Classes of Metal Compounds Ammonium Polyhalides, etc. (Quaternary) Quaternary Ammonium Compounds Transition Metal Compounds Cr (Chromium) Compounds Ammonium Polyhalides, etc. (Quaternary) Classes of Metal Compounds Oxidation Quaternary Ammonium Compounds Synthetic Organic Chemistry Transition Metal Compounds