Name | 2-hydroxyethylhydrazine |
Synonyms | 2-Hydrazineethanol ETHANOL-2-HYDRAZINE HYDROXYETHYL HYDRAZINE 2-hydroxyethylhydrazine (2-Hydroxyethyl)drazine BETA-HYDROXYETHYL HYDRAZINE 1-(2-Hydroxyethyl)hydrazine |
CAS | 109-84-2 |
EINECS | 203-711-6 |
InChI | InChI=1/C2H8N2O/c1-2(5)4-3/h2,4-5H,3H2,1H3 |
InChIKey | GBHCABUWWQUMAJ-UHFFFAOYSA-N |
Molecular Formula | C2H8N2O |
Molar Mass | 76.1 |
Density | 1.123g/mLat 25°C(lit.) |
Melting Point | −70°C(lit.) |
Boling Point | 155-160°C32mm Hg(lit.) |
Flash Point | 165°F |
Water Solubility | Soluble in water, alcohols and glycols. |
Vapor Presure | 0.015mmHg at 25°C |
Appearance | Morphological Liquid |
Color | Colorless to Almost colorless |
Merck | 13,4794 |
BRN | 1731669 |
pKa | 14.79±0.10(Predicted) |
Storage Condition | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
Refractive Index | n20/D 1.493(lit.) |
Physical and Chemical Properties | Chemical properties colorless viscous liquid. Melting point -70 ℃, boiling point 155-160 ℃(4.27kPa),148-152(4.0kPa),127 ℃(2.27kPa), relative density 1.123(23/4 ℃), refractive index 1.4885, flash point 73 ℃. Can be miscible with water, soluble in lower alcohols, slightly soluble in ether. |
Use | It can be used as an intermediate raw material for the synthesis of furazolidone, and can also be used as a plant growth regulator, a stabilizer for polyurethane and polyacrylonitrile, an oil well corrosion inhibitor, etc. |
Hazard Symbols | T - Toxic |
Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R40 - Limited evidence of a carcinogenic effect R25 - Toxic if swallowed |
Safety Description | S23 - Do not breathe vapour. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S20 - When using, do not eat or drink. |
UN IDs | UN 2810 6.1/PG 3 |
WGK Germany | 3 |
RTECS | KL2800000 |
TSCA | Yes |
HS Code | 29280000 |
Hazard Note | Toxic |
Hazard Class | 6.1 |
Packing Group | II |
Downstream Products | 5-Amino-1-(2-hydroxyethyl)pyrazole |
Merck | 13,4794 |
BRN | 1731669 |
NIST chemical information | 2-Hydroxyethylhydrazine(109-84-2) |
EPA chemical information | 2-Hydroxyethylhydrazine (109-84-2) |
Hazard Note | Toxic |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Application | used as intermediate in organic synthesis, stabilizer of fuel oil, plant growth regulator. as an intermediate material for the synthesis of furazolidone, it can also be used as a plant growth regulator, stabilizer of polyurethane and polyacrylonitrile, oil well corrosion inhibitor, etc. |
production method | is obtained by addition of ethylene oxide and hydrazine hydrate. 40% hydrazine hydrate was reacted with ethylene oxide at 65-75 ° C. And then concentrated under reduced pressure to obtain 2-hydroxyethyl hydrazine. In some reaction examples, the temperature is controlled to 40 ° C. Or lower, and the yield is 60-64%. |
use
1. Used as an intermediate in organic synthesis, a stabilizer for fuel oil, and a plant growth regulator.
2. It is used as an intermediate raw material for the synthesis of furazolidone, and can also be used as a plant growth regulator, a stabilizer for polyurethane and polyacrylonitrile, and an oil well corrosion inhibitor.
production method
It is obtained by the addition of ethylene oxide and hydrazine hydrate. 40% hydrazine hydrate reacts with ethylene oxide at 65-75 ℃, and then concentrates under reduced pressure to obtain 2-hydroxyethylhydrazine. Some reaction examples control the temperature below 40 ℃ and the yield is 60-64%.