HYDRAZINE SULFATE |
PRODUCT
IDENTIFICATION
|
CAS
NO. |
10034-93-2 |
|
EINECS
NO. |
233-110-4 |
FORMULA |
H2NNH2H2SO4 |
MOL
WT. |
130.12 |
H.S.
CODE
|
|
TOXICITY |
Oral rat LD50: 601 mg/kg |
SYNONYMS |
Hydrazine dihydrogen sulfate salt; Diamidogen
Sulfate; |
Diamine Sulfate; Hydrazine Monosulfate; Hydrazinium Sulfate;
Hydrazine hydrogen sulfate; Hydrazinium(2+) sulfate; Hydrazinium sulfate; |
DESCRIPTION |
|
CLASSIFICATION
|
|
PHYSICAL
AND CHEMICAL PROPERTIES
|
PHYSICAL
STATE |
white
crystals |
MELTING
POINT |
254
C (Decomposes)
|
BOILING
POINT |
|
SPECIFIC
GRAVITY |
1.37
- 1.38 |
SOLUBILITY
IN WATER |
Soluble in hot water |
pH |
|
VAPOR
DENSITY |
|
AUTOIGNITION
|
|
NFPA
RATINGS
|
Health:
3; Flammability: 0; Reactivity: 1 |
REFRACTIVE
INDEX
|
|
FLASH
POINT |
|
STABILITY |
Stable
under ordinary conditions |
GENERAL
DESCRIPTION AND APPLICATIONS
|
Hydrazine (anhydrous),
H2NNH2,
is a clear, fuming, corrosive liquid with an ammonia-like
odor; melting at 1.4 C, boiling at 113.5 C, specific gravity 1.011. It is very
soluble in water and soluble in alcohol. It decomposes on heating or exposure to
UV to form ammonia, hydrogen, and nitrogen, which may be explosive with a blue
flame when catalysed by metal oxides and some metals such as platinum or Raney
nickel. It is prepared from ammonia with chloramine in the presence of glue or
gelatin (to inhibit decomposition of the hydrazine by unreacted oxidants) as the
hydrate form usually (100% monohydrate contains 64% by weight hydrazine).
Hydrazine is also prepared from sodium hypochlorite with urea in the presence of
glue or gelatin. Botht ammonia and amines are nitrogen nucleophiles which
donate electrons (they are Lewis bases). But hydrazine (diamine) has much
stronger nucleophilicity which makes it more reactive than ammonia. Hydrazine
has dibasic and very reactive properties. Hydrazine is used as a component in
jet fuels because it produce a large amount of heat when burned. It is less flammable and less volatile
than hydrocarbon fuels. It is relatively environmentally friendly because
they degrade quickly in the environment. Hydrazine is used as an oxygen scavenger for water boiler
feed and heating systems to prevent corrosion damage. Hydrazine is used as a
reducing agent for the recovery of precious metals. It is used as a
polymerization catalyst and a chain extender in urethane coatings. It, or a
derivative thereof, is versatile intermediate. They have active applications in
organic synthesis for agrochemicals, pharmaceuticals, photographic, heat
stabilizers, polymerization catalysts, flame-retardants, blowing agents for
plastics, explosives, and dyes. Recently, hydrazine is applied to LCD (liquid
crystal displays) as the fuel to make faster thin-film transistors. Hydrazone is a
compound containing the group -NH·N:C-. It is formed from a condensation
reaction aldehydes or ketones with hydrazines (commonly phenylhydrazine). It is
used as an exotic fuel. Aromatic hydrazones are used to form indole by a ring
closure reaction (Fischer synthesis). Hydrazones and hydrazines are converted to
aldehydes and ketones to corresponding hydrocarbons by heating the carbonyl
compound with sodium ethoxide (Wolf-Kishner reduction). Azide
contains the group -N3
represented as a resonance hybrid of two structures,
-N-N-¡ÕN+
¡ê -N=N+=N-.
Organic azides are compounds replaced by a hydrocarbon group as in alkyl or aryl
from hydrazoic acid (HN3)and have general formula RN3. Acyl azide is a compound in
which the hydroxy group of a carboxylic acid is replaced by the azido group
(HN3). Hydrazide is an acyl hydrazine. Acyl (-CO) is an organic radical formed by
removal of a hydroxyl group from an organic acid (carboxyl group). Organic azides are useful for the synthesis of target compounds. They act
as electrophiles on the nitrogen attached to the carbon and have
electron-donating character for the neighboring carbon.
Hydrazine sulfate
is used in separating rare earth metals and as a hydrazine
source in manufacturing organic compounds as well as
other hydrazine compounds. It is used in biologically active material
synthesis ( it is used in test blood). It is used as a fungicide. |
SALES
SPECIFICATION |
APPEARANCE
|
white
crystals |
CONTENT |
99.0%
|
HEAVY
METALS |
10ppm
max |
CHLORIDE |
0.1%
max |
IRON |
0.005%
max
|
TRANSPORTATION |
PACKING |
25kgs
in fiber drum |
HAZARD
CLASS |
|
UN
NO. |
1759 |
OTHER
INFORMATION |
Hazard Symbols: T N, Risk Phrases: 23/24/25-43-45-50/53 , Safety
Phrases: 53-45-60-61 |
PRICE
INFORMATION |
|
|