HSDB 544
hydrazine solution anhydrous
CAS: 302-01-2;119775-10-9;31886-26-7;75013-58-0;78206-91-4
Molecular Formula: H4N2
HSDB 544 - Names and Identifiers
| Name | hydrazine solution anhydrous |
| Synonyms | Diamine HSDB 544 Levoxine CCRIS 335 Hydrazyna Hydrazine Oxytreat 35 Hydrazine base Nitrogen hydride Hydrazyna [Polish] Hydrazine, anhydrous RCRA waste number U133 hydrazine solution anhydrous |
| CAS | 302-01-2 119775-10-9 31886-26-7 75013-58-0 78206-91-4 |
| EINECS | 206-114-9 |
| InChI | InChI=1/H4N2/c1-2/h1-2H2 |
HSDB 544 - Physico-chemical Properties
| Molecular Formula | H4N2 |
| Molar Mass | 32.04 |
| Density | 1.01 |
| Melting Point | 1.4℃ |
| Boling Point | 113℃ |
| Flash Point | 52℃ |
| Water Solubility | miscible |
| Vapor Presure | 5 mm Hg ( 25 °C) |
| Refractive Index | n20/D 1.47(lit.) |
| Physical and Chemical Properties | Oily colorless liquid with irritating odor. |
| Use | Used in the manufacture of isoniazid, photographic developing agent, jet engine fuel, rocket fuel, antioxidant, reducing agent, high pressure boiler feed water deoxidizer |
HSDB 544 - Risk and Safety
| Hazard Symbols | T - Toxic N - Dangerous for the environment  |
| Risk Codes | R10 - Flammable R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R34 - Causes burns R43 - May cause sensitization by skin contact R45 - May cause cancer R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S53 - Avoid exposure - obtain special instructions before use. S60 - This material and its container must be disposed of as hazardous waste. |
| UN IDs | UN 3293 6.1/PG 3 |
HSDB 544 - Upstream Downstream Industry
HSDB 544 - Security information
| WGK Germany | 3 |
| RTECS number | MU7175000 |
| F | 10-21 |
| auto-ignition temperature | 24°C on iron rust surface; 270°C on glass surface |
| HazardClass | 8 |
| PackingGroup | I |
| customs code | 28251090 |
| toxic substance data | 302-01-2(Hazardous Substances Data) |
| Toxicity | LD50 in mice (mg/kg): 57 I .v.; 59 orally (Witkin) |
| immediate threat to life and health concentration | 50 ppm |
Last Update：2024-04-17 12:27:57
HSDB 544 - Nature
| storage conditions | 2-8°C |
| acidity coefficient (pKa) | pK1 (25°): ~6.05 |
| morphology | Liquid |
| color | Clear colorless |
| Odor | Fishy or ammonia-like odor detectable at 3 to 4 ppm (mean = 3.7 ppm) |
| explosion limit value (explosive limit) | 99.99% |
| water solubility | miscible with H2O and the following alcohols: methyl, ethyl, propyl, isobutyl [MER06] |
| Merck | 13,4789 |
| BRN | 878137 |
| exposure limit | TLV-TWA (skin) 1 ppm (1.3 mg/m3 ) (MSHA and OSHA), 0.1 ppm (ACGIH). |
| stability | Stability May be an explosion hazard, particularly if heated. Incompatible with sources of ignition, light, shock, strong oxidizing agents, strong acids, metal oxides, nitrous oxide, hydrogen peroxide, most common metals, organic materials, porous materials such as wood, paper, asbestos, soil or rust. Many types of metal may cause rapid d |
| (IARC) Carcinogen Classification | 2A (Vol. 4, Sup 7, 71, 115) 2018 |
| EPA chemical information | Hydrazine (302-01-2) |
Last Update：2024-04-10 22:29:15
HSDB 544 - Uses and synthesis methods
properties
Anhydrous hydrazine is also known as hydrazine. Colorless oily liquid. Molecular weight 32.05. Melting point 2 ℃. Boiling point 113.5 ℃. Relative density 1.004(25/4 ℃). The refractive index is 1.4644(35 ℃). Flash point 52 ℃. It is miscible with water and alcohol, and insoluble in chloroform and ether. It is hygroscopic, smokes in the air, and a purple flame when burned. There is irritating ammonia odor.
chemical properties
oily colorless liquid with pungent odor. Soluble in water, alcohol, ammonia and amine.
use
1. hydrazine is a widely used chemical raw material. It has a high heat of combustion and can be used as fuel for rockets and fuel cells. Ammonia and sodium hypochlorite are used as raw materials, and are prepared by chlorination and amination. Anhydrous hydrazine is a strong reducing agent that can be used to remove oxygen from boiler water and hot water heating systems to reduce corrosion. It can also be used as plastic foaming agent, antioxidant, polymer crosslinking agent, plant growth regulator, pesticide, medicine, etc.
2. Used in the manufacture of isoniazid, photographic developer, jet engine fuel, rocket fuel, antioxidant, reducing agent, high-pressure boiler feed water deoxidizer, etc.
3. Used as rocket fuel. High-pressure boiler water treatment is used to remove carbon dioxide and oxygen to prevent corrosion. It is used as a plant growth inhibitor in agriculture, and is also used for the storage of tobacco, potatoes, corn, etc. It is used in medicine to make isoniazid. In addition, it is also used in the manufacture of nylon, epoxy resin and edible hydrochloric acid, and also used as regeneration catalyst, herbicide and fuel cell.
4. hydrazine is a widely used chemical raw material. It has a high heat of combustion and can be used as fuel for rockets and fuel cells. Hydrazine is a strong reducing agent that can be used to remove oxygen from pot water and hot water heating systems to reduce corrosion. In the molecule of hydrazine, due to two nucleophilic nitrogen and four replaceable hydrogen, the gang can synthesize various derived animals, including plastic foaming agents, antioxidants, various polymers, Polymer crosslinking agents and chain lengthening agents, pesticides, herbicides, plant growth regulators and medicines. Hydrazine is extremely toxic. The oral LD50 in mice was 59mg/kg, and the intravenous LD50 was 57mg/kg.
5, used for ICP-AES, AAS, AFS, ICP-MS, ion chromatography, etc. Standard solution for titration analysis.
production method
1. The industrial production of hydrazine has always followed the Rashifa. In October 1981, the French company Yugina-Cullman successfully studied the imine hydrogen peroxide oxidation method, which is a very promising production method. The Lashi method uses ammonia and sodium hypochlorite as raw materials, and is chlorinated and aminated to obtain hydrazine: ammonia and sodium hypochlorite are introduced into the reactor at a 1:3 (molar ratio) to obtain chloramine. Chloramine reacts with anhydrous ammonia in a hydrazine reactor to form hydrazine. Hydrazine can be prepared by reacting urea with sodium hypochlorite-sodium hydroxide solution in the presence of potassium permanganate catalyst.
2. Mix caustic soda with 50% ~ 54% hydrazine hydrate (mass ratio 10:8) by dehydrating agent method, gradually introduce nitrogen to remove air, heat to the lye temperature of nearly 118 ℃, wait for the caustic soda to be completely dissolved, cool to about 60 ℃, carry out vacuum distillation until the hydrazine content of the distillate is 90% ~ 94%, then fractionated, remove water, and condense, 98% ~ 99.5% anhydrous hydrazine was prepared.
The extraction dehydration method fractionates the hydrazine hydrate solution to evaporate the water until the water and hydrazine reach azeotropic (68% hydrazine), fractionates the solution twice, adds aniline to change its boiling point, and disburses aniline and water. The aniline recovered from condensation in the water can be returned to recycling, and the secondary fractionation solution is then fractionated three times.
category
corroded articles
toxicity classification
High toxicity
acute toxicity
oral-rat LD50: 60 mg/kg; oral-mouse LD50: 59 mg/kg
explosive hazard characteristics
It can explode when burning
flammability hazard characteristics
It is flammable in high heat, open flame, and oxidant; it decomposes toxic nitrogen compound gas when heated
storage and transportation features
The warehouse is ventilated and dry at low temperature; it is stored separately from oxidants and acids.
fire extinguishing agent
Dry powder, foam, mist water, carbon dioxide
occupational standards
TLV-TWA 0.1 PPM (1.3 mg/m3); STEL 0.1 mg/m3
Last Update：2024-04-17 12:30:32
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CAS: 302-01-2
Tel: 0086-551-65418684
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Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
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Product List: View Catalog
CAS: 302-01-2
Tel: 0086-551-65418684
Email: sales@tnjchem.com
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Mobile: 0086 189 4982 3763
QQ: 2881500840
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View History
Raw Materials for HSDB 544
Downstream Products for HSDB 544
5-(2-aminoethyl)-4-methylthiazol-2-ol
1-(4-(Pyrrolidin-1-yl)butyl)hydrazine
5-CYCLOPROPYL-2H-PYRAZOL-3-YLAMINE
1-METHYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
1-(3-(pyrrolidin-1-yl)propyl)hydrazine
4-CHLORO-2-(TRIFLUOROMETHYL)PYRIMIDINE-5-CARBONITRILE
2-Hydrazino-4-(trifluoromethyl)pyrimidine
1-(Tetrahydro-2H-pyran-4-yl)hydrazine
3-Hydrazinyl-1-morpholinopropan-1-one
(2-MORPHOLIN-4-YL-ETHYL)-HYDRAZINE
2-Hydrazinyl-1-(4-methylpiperazin-1-yl)ethanone
ETHYL 5-AMINO-3-(TRIFLUOROMETHYL)-1H-PYRAZOLE-4-CARBOXYLATE
(4-OXO-3,4-DIHYDROPHTHALAZIN-1-YL)ACETIC ACID
(2-PYRROLIDIN-1-YL-ETHYL)-HYDRAZINE
4-Hydroxy-6-aminopyrimidine
1-(4-Methoxybutyl)hydrazine
3-MERCAPTOPICOLINIC ACID
3-Aminopyrazole-4-carboxylic acid
1-(4-(Pyrrolidin-1-yl)butyl)hydrazine
5-CYCLOPROPYL-2H-PYRAZOL-3-YLAMINE
1-METHYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
1-(3-(pyrrolidin-1-yl)propyl)hydrazine
4-CHLORO-2-(TRIFLUOROMETHYL)PYRIMIDINE-5-CARBONITRILE
2-Hydrazino-4-(trifluoromethyl)pyrimidine
1-(Tetrahydro-2H-pyran-4-yl)hydrazine
3-Hydrazinyl-1-morpholinopropan-1-one
(2-MORPHOLIN-4-YL-ETHYL)-HYDRAZINE
2-Hydrazinyl-1-(4-methylpiperazin-1-yl)ethanone
ETHYL 5-AMINO-3-(TRIFLUOROMETHYL)-1H-PYRAZOLE-4-CARBOXYLATE
(4-OXO-3,4-DIHYDROPHTHALAZIN-1-YL)ACETIC ACID
(2-PYRROLIDIN-1-YL-ETHYL)-HYDRAZINE
4-Hydroxy-6-aminopyrimidine
1-(4-Methoxybutyl)hydrazine
3-MERCAPTOPICOLINIC ACID
3-Aminopyrazole-4-carboxylic acid