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8.04608

Sigma-Aldrich

Hydrazinium hydroxide

(about 100% N₂H₅OH) for synthesis

Synonym(s):

Hydrazinium hydroxide, Hydrazine hydrate

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250 ML
$42.90
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$136.00
55 KG
$2,020.00

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250 ML
$42.90
1 L
$136.00
55 KG
$2,020.00

About This Item

Empirical Formula (Hill Notation):
H4N2 · xH2O
CAS Number:
Molecular Weight:
32.05 (anhydrous basis)
MDL number:
UNSPSC Code:
12352305
EC Index Number:
206-114-9
NACRES:
NA.22
Grade:
synthesis grade
Form:
liquid

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$42.90


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grade

synthesis grade

Quality Level

vapor pressure

20 hPa ( 20 °C)

form

liquid

autoignition temp.

280 °C

potency

169 mg/kg LD50, oral (Rat)

expl. lim.

3.4-99 % (v/v)

pH

10-11 (20 °C, 10 g/L in H2O)

bp

120.5 °C/1013 hPa

mp

-51.7 °C

density

1.03 g/cm3 at 20 °C

storage temp.

15-25°C

SMILES string

[N+H3]N.[O-H]

InChI

1S/H4N2.H2O/c1-2;/h1-2H2;1H2

InChI key

IKDUDTNKRLTJSI-UHFFFAOYSA-N

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1 of 4

This Item
13-15201.046038.04604
form

liquid

form

liquid

form

solid

form

solution

Quality Level

200

Quality Level

-

Quality Level

100

Quality Level

200

mp

-51.7 °C

mp

−51.7 °C (lit.)

mp

254 °C (decomposition)

mp

-60 °C

vapor pressure

20 hPa ( 20 °C)

vapor pressure

5 mmHg ( 25 °C)

vapor pressure

-

vapor pressure

13 hPa ( 20 °C)

density

1.03 g/cm3 at 20 °C

density

1.032 g/mL at 25 °C (lit.)

density

1.37 g/cm3 at 20 °C

density

1.02 g/cm3 at 20 °C

pH

10-11 (20 °C, 10 g/L in H2O)

pH

10.6-10.7 (10 g/L)

pH

1.5 (20 °C, 50 g/L in H2O)

pH

10.6-10.7 (20 °C, 10 g/L in H2O)

Application

Hydrazinium hydroxide (N2H4.H2O) can be used as a reducing agent to synthesize:
  • Magnetic nickel nanoparticles by polyol process using nickel acetate as a precursor.[1]
  • Cu@Cu2O core-shell nanoparticles via a chemical reduction method using CuSO4.5H2O as a precursor.[2]

It can also be used as a reactant to prepare:
2H-indazolo[2,1-b]phthalazine-1,6,11(13H)-trione derivatives by Ce(SO4)2·4H2O catalyzed condensation reaction with phthalic anhydride, aromatic aldehydes, and dimedone.[3]

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - Skin Sens. 1

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

100.4 °F - closed cup - (anhydrous substance)

flash_point_c

38 °C - closed cup - (anhydrous substance)


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