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About This Item
Linear Formula:
H2NNH2 · HBr
CAS Number:
Molecular Weight:
112.96
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Quality Level
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 Statements
Precautionary Statements
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
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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Hydrazinium bromide as a solvent.
Seward RP
The Journal of Physical Chemistry, 66(6), 1125-1127 (1962)
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)
The crystal structure of hydrazinium bromide, N2H5Br.
Sakurai K and Tomiie Y
Acta Crystallographica, 5(2), 289-289 (1952)
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)
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