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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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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

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges

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)
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)
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)
The crystal structure of hydrazinium bromide, N2H5Br.
Sakurai K and Tomiie Y
Acta Crystallographica, 5(2), 289-289 (1952)
PN compounds 28. Phosphaminimides 3. 4-nitrobenzylation of phosphinyl-1, 1-dimethyl hydrazides and formation of a unique hydrazinium inner salt.
Cates LA and Li VS
Phosph. Sulfur Relat. Elem., 29(2-4), 249-255 (1987)
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