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Sigma-Aldrich

Hydrazine monohydrobromide

≥98%

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About This Item

Linear Formula:
H2NNH2 · HBr
CAS Number:
13775-80-9
Molecular Weight:
112.96
EC Number:
237-412-7
MDL number:
MFCD00065394
UNSPSC Code:
12352100
PubChem Substance ID:
24864595
NACRES:
NA.22

Quality Level

100

Assay

≥98%

form

solid

mp

87-92 °C (lit.)

SMILES string

Br.NN

InChI

1S/BrH.H4N2/c;1-2/h1H;1-2H2

InChI key

DVHXJLRODLTJOD-UHFFFAOYSA-N

General description

Hydrazine monohydrobromide (hydrazinium bromide) is a hydrobromide salt of hydrazine. It has been prepared by adding aqueous hydrobromic acid to aqueous hydrazine. Its crystal structure has been investigated. It participates in the synthesis of 2-(2′-furoyl)-4(5)-(2′-furanyl)-1H-imidazole (FFI). It is formed as an intermediate during the formation of phosphaminimides from hydrazide derivatives. The fumes from the pyrolysis of hydrazine monohydrobromide soldering flux have been reported to cause dermatitis.

Application

Hydrazine monohydrobromide (hydrazinium bromide) may be used in the synthesis of bromostannates and bromostannites by reacting with tin bromide and also in soldering flux.

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Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Skin Sens. 1

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Protection of workers against dermatitis on exposure to hydrazine hydrobromide soldering flux.
Cook WA
International Archives of Occupational and Environmental Health, 13(6), 616-618 (1955)
A Facile Synthesis of an Advanced Glycosylation Endproduct 2-(2'-furoyl)-4 (5)-(2'-furanyl)-1 H-imidazole.
Rho T, et al
Synthetic Communications, 27(24), 4315-4318 (1997)
504. Hydrazine. Part IV. The bromostannates and bromostannites of hydrazine, dimethyl ketazine, and pentan-3-one hydrazone.
Pugh, W
Journal of the Chemical Society, 2491-2493 (1953)
Hydrazinium bromide as a solvent.
Seward RP
The Journal of Physical Chemistry, 66(6), 1125-1127 (1962)
The crystal structure of hydrazinium bromide, N2H5Br.
Sakurai K and Tomiie Y
Acta Crystallographica, 5(2), 289-289 (1952)
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