Main Products
- Phosphonates Antiscalants, Corrosion
Inhibitors and Chelating Agents - Salts of Phosphonates
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- Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na4)
- 2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt (PBTC•Na4)
- Penta sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na5)
- Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMP•Na7)
- Potassium Salt of HexaMethylene-DiamineTetra (MethylenePhosphonic Acid) HMDTMPA•K6
- More
- Polycarboxylic Antiscalant and Dispersant
- Biodegradable Antiscalant and Dispersant
- Biocide and Algicide
- Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
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- TH-907 Non-P Scale&Corrosion Inhibitor
- TH-503 Scale and Corrosion Inhibitor for Boiler
- TH-503B Scale and Corrosion Inhibitor for Boiler
- TH-504 Scale and Corrosion Inhibitor for Heating Water
- TH-601 Scale and Corrosion Inhibitor for Iron & Steel Plant
- TH-604 Scale and Corrosion Inhibitor for Power Plant
- More
- Corrosion Inhibitor
- Oxygen Scavenger
- Reverse Osmosis Chemicals
- Other
Shandong Taihe Water
Treatment Co., Ltd.
TEL: +86-632-5113066 +86-632-5791266
FAX: +86-632-5112055
Mobile: +86-13963261506
+86-13906378659
E-mail: export@thwater.net
ADD: Zhongtai Chemical Industrial Park, Economic Development Zone of Zaozhuang, Shandong Province, China
Carbohydrazide
Alias: Hydrazine, 1,3-Diaminourea; Carbonic Dihydrazide
Molecular formula: CO(NHNH2)2 CAS No. 497-18-7
Molecular weight: 90.09
Molecular structure
Properties
Carbohydrazide is white crystal powder. Carbohydrazide is very soluble in water and soluble in alcohol. Carbohydrazide decomposes on heating or exposure to uv to form ammonia, hydrogen, and nitrogen, which may be explosive with a blue flame when catalyzed by metal oxides and some metals such as platinum or raney nickel. Carbohydrazide has dibasic and very reactive properties. Carbohydrazide is used as a component in jet fuels because it produce a large amount of heat when burned. Carbohydrazide is used as rocket fuel. Carbohydrazide is used as an oxygen scavenger for water boiler feed and heating systems to prevent corrosion damage. Carbohydrazide is used as a reducing agent for the recovery of precious metals. Carbohydrazide is used as a polymerization catalyst and a chain extender in urethane coatings. Carbohydrazide is used as an auxiliary in photographic industry to prevent discolouration. Carbohydrazide is used as an intermediate for pharmaceuticals, stabilizers and water treatment chemicals.
Carbohydrazide and its derivatives are versatile intermediates. 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.
Specification
| Items | Index |
|---|---|
| Appearance | White crystal powder |
| Purity，% | 98.0min |
| Free hydrazine，ppm | 500.0max |
| Weight loss % | 0.2max |
| pH(12% water solution) | 8.45±1.25 |
Usage
When used as de-oxidant in boiler, put this product into water or use its water solution, the dosage of 0.5mol or above of carbohydrazide for 1mol O2 is preferred. The suitable temperature range is 87.8-176.7℃. The reaction for carbohydrazide with O2 is CON4H6+ 2O2= 2N2 + 3H2O + CO2
Package and storage
25Kg/bag ,25Kg/fiber drum, customers’ requirements.Storage for one year in shady room and dry place.