Date of Issue: 03/2015
Page 1 of 2
Zinc Bromide, 30 % solution in THF
PRODUCT
Zinc Bromide, 30 % solution in THF
Product No. 408621
CAS-No. 7699-45-8
EINECS-No. 231-718-4
FURTHER
INGREDIENTS
THF
CAS-No. 109-99-9 EINECS-No. 203-726-8
APPLICATION
The use of a 'ready-made' THF solution avoids the handling of the very hygroscopic and dusty
ZnBr2 powder.
The ZnBr2 THF solution was developed mainly for the application in organic synthesis, e.g.:
- transmetallation of organomagnesium and organolithium compounds to the corresponding
zinc reagents for C-C coupling reactions (Negishi protocol).
- formation of zinc enolates by deprotonation of carbonyl compounds using standard bases
followed by transmetallation with ZnBr2 .
- catalysis of cycloaddition reactions e.g. Diels-Alder reactions of electron rich dienes with
carbonyl compounds.
- preparation of selective reducing agents, e.g. Zn(BH 4 )2 by reaction of NaBH 4 with ZnBr2 .
Reference:
McGarvey, G.J. in Encyclopedia of Reagents for Organic Synthesis, Paquette, L.A., Ed. John
Wiley and Sons, New York (1995), Vol. 8, 5544.
APPEARANCE
Yellow-brownish to pink, clear to slightly turbid solution
FORMULA
Br2 Zn
PHYSICAL
PROPERTIES
Molecular weight:
225.19 g/mol (ZnBr2 )
Density:
1.18 g/ccm (at 20°C)
Boiling Point:
66 °C (THF at 1,013 hPa)
Flash Point:
-21.5 °C (THF)
Thermal Stability:
Crystallization below 0 °C
SPECIFICATION
Zinc Bromide
28 - 32 %
Water content
< 0.13 %
The abov e details hav e been compiled to the best of our knowledge
on the basis of thorough tests and with regard to the current state
of our long practical experience. No liabilities or guarantees deriv ing
f rom or in connection with this leaf let can be imputed to us.
Reproduction, in whole or in part, only with our express permission.
® registrated trademark
www.rockwoodlithium.com
Europe:
Rockwood Lithium GmbH
Fax: +49 69 40126-72000
Americas:
Rockwood Lithium Inc.
Fax: +1 704 734-2718
Asia:
Rockwood Lithium Japan K.K.
Fax: +81-3-6434-5623
Product No. 408621
Date of Issue: 03/2015
Page 2 of 2
METHOD OF
ANALYSIS
Determination of assay by argentometric titration of bromide, determination of water by KarlFischer titration.
HANDLING
Under exclusion of light and humidity stable over practically unlimited periods. Dibutyl ether
can form explosive peroxides in contact with air. Storage and handling under inert gas is
recommended. Pay attention to official safety regulations (see also 'Transport regulations'
and 'Marking').
TRANSPORT
REGULATIONS
UN-No.:
2924
Rail/Road (RID/ADR):
Class 3
PG II
Label 3 and 8
Sea (IMDG-Code):
Class 3
PG II
Label 3 and 8
Air (IATA-DGR):
Class 3
PG II
PAX 352
CAO 362
GHS HAZARD
PICTOGRAMS
H&P Phrases: See Safety Data Sheet
SIGNAL WORD
Danger
PACKING
Glass bottles of 100, 250, 500, and 1,000 ml. Steel bottles with volumes of 7.4, 27, 127 or
450 l. Steel drums up to 200 l. For safety reasons these are filled to a maximum of 90 %.
TIME OF DELIVERY
Upon request.
FURTHER RELATED
DOCUMENTS
Flyer 'Water-free Salts in Organic Synthesis', Safety Data Sheet.
The abov e details hav e been compiled to the best of our knowledge
on the basis of thorough tests and with regard to the current state
of our long practical experience. No liabilities or guarantees deriv ing
f rom or in connection with this leaf let can be imputed to us.
Reproduction, in whole or in part, only with our express permission.
® registrated trademark
www.rockwoodlithium.com
Europe:
Rockwood Lithium GmbH
Fax: +49 69 40126-72000
Americas:
Rockwood Lithium Inc.
Fax: +1 704 734-2718
Asia:
Rockwood Lithium Japan K.K.
Fax: +81-3-6434-5623