Hydrazine hydrate

Hydrazine hydrate, with a strongly alkaline and hygroscopic . Pure product is colorless transparent oily liquid with a light ammonia odor, smoke in the wet air, with a strongly alkaline and hygroscopic . Liquid hydrazine hydrate with water and ethanol, insoluble in ether and chloroform; it can erode glass, rubber , leather, cork , etc., decompose at high temperatures into N2, NH3 and H2; hydrazine highly , with halogens , HNO3 , KmnO4 other violent reaction in the air can absorb CO2, produce smoke . Hydrazine and its derivatives products in many industrial applications has been widely used as a reducing agent , antioxidant, used for making medicine , foaming agents , etc.
Use
Hydrazine hydrate as an important fine chemical raw materials, mainly for the synthesis of AC, D1PA, TSH and other foaming agent ; also used as boiler and reactor deoxidation and cleaning off the carbon dioxide treatment agent ; in the pharmaceutical industry for the production of anti- tuberculosis, anti-diabetic , anti-tumor drugs ; in the pesticide industry for the production of herbicides, plant growth reconcile agent and sterilization, insecticide, rat poison ; addition, it can also be used to produce rocket fuel , diazo fuel , rubber additives , car airbags, LCD intermediates. In recent years, applications of hydrazine hydrate are still expanding.
a) for the synthesis of a foaming agent . With hydrazine hydrate as raw material to manufacture ADC foaming agent , and its gas evolution obviously much higher than other similar products , and non-toxic , tasteless, not color, not bad.
b) for the synthesis of pesticides. Hydrazine derivatives are used as a pesticide plant growth regulator maleic hydrazide derivatives , rodenticides two mice agent dinitrophenylhydrazine , insecticidal agents nails pyrazole derivatives with a 5 - nitrofuran thioacetazone , weeding agents such as amino- triazole .
c) medicine . Isoniazid, Fenji thioacetazone , benzenesulfonyl thioacetazone , antipsychotics 1 - Isonicotinic acetyl-2 - isopropyl hydrazine, hydrazine derivatives aldehyde anticancer drugs ,
Hydrazine can be directly used :
Industrial boilers and high pressure steam boiler in water oxygen scavenger . Hydrazine hydrate is a deoxidizer , which enables reduction of dissolved oxygen in the water , boiler feed water is used to further remove the residue after thermal oxygen by trace dissolved oxygen. Because for dissolved oxygen can cause corrosion of boiler tubes . The boiler feedwater hydrazine hydrate , not only oxygen, but also to prevent fouling of iron and copper boiler scale formation .
Hydrazine is a highly reducing agent , can be synthesized by the following products:
1 foam: Most of the hydrazine derivative as a blowing agent is azodicarbonamide (AC), and p-toluenesulfonic acid hydrazide . ( Azo- carboxamide ) ( eg : tube used for the production of sodium azide product ) .
(2) agricultural products and pharmaceutical products in the synthesis of biologically active intermediates , first generation triazole.
3 azo initiators
4 various other products: The dye certain organic pigments , photographic reagents aspect , urethane , and acrylic esters , and cyanide bromate products.
5 of plastic and metal ( nickel, cobalt, iron , chromium, etc. ) of a metal inlay.
6 is a rocket fuel formulations.
7 In the ACTIRED used in the process , the process is mainly used in gold processing .
About us
hydrazine hydrate supplier ----TongJiu Hydrazine Hydrate Industry Co., Ltd was found in 2002, Located at Xinhua West Road 10#, NanJing City, China, mainly producing hydrazine hydrate. Our company mainly specializes in the production and research & development of auxiliary agents for oil field, including 1h-1,2,4-triazole, hydrazine monohydrate,o-chlorbenzyl chloride and so on. The production capacity of aminoguanidine bicarbonate is 15000 mts per year, and sodium hormate is 25000 mts per year.and 2-cyano-4-nitro-6-bromoaniline 18000mts per year.

How to choose silica gel supplier

Usage by Product Category
1 , medicinal , food silica gel desiccant
Food and Drug silica gel desiccant criteria are to meet State Food and Drug Administration to develop pharmaceutical packaging containers ( material ) Standard: " Medicinal solid desiccant paper bags standard " , the standard provides for " solid dosage filter bags packed spherical pore silica gel desiccant "requirement, which in addition to the desiccant bag appearance , strength, moisture adsorbent , desiccant moisture absorption rate and other basic performance requirements, focusing on the content of harmful substances in the desiccant ( eg : arsenic , etc. ) , microbial limits , bleaching performance and other aspects of the regulations.
2 , shoes with silica gel desiccant
Shoes with silica gel desiccant can be considered for general cargo dry, moisture desiccant. The main requirement silica gel desiccant itself does not contain relevant international standards in the prohibited substances , packaging materials Breathable and durable, while its upper reaches other desiccant adsorption effect can not be achieved .
3, Electronic products with silica gel desiccant
Electronic products, especially for packaging moisture-sensitive electronic components and humidity control also has a very high demand , the United States Association Connecting Electronics Industries (IPC) and the U.S. Joint Electron Device Engineering Council (JEDEC) jointly prepared " moisture-sensitive surface mount components packing and shipping process using the standard "
J-STD-033b is being widely used for moisture-sensitive electronic components surface treatment, drying, drying and packaging requirements in all aspects of the comprehensive standard . The standard provisions in Chapter 3 of these electronic components dry packaging requirements.
4 , the container with silica gel desiccant
Container with silica gel desiccant is mainly used for shipping containers , used to adsorb the ocean containers during transport or storage container and humid climate and the oceans since experienced a large diurnal temperature variation inside the container into water vapor will condense beads and the formation of the " container rain " , to reduce the moisture content of the air in the container to prevent the generation of container rain .
About us
SILICA GEL supplier----Fenglong Chemical Co., Ltd. is primarily engaged in manufacturing silica gel since 2001. We are manufacturing Indicating silica gel & Non-Indicating type of SILICA GEL in all grades such as blue silica gel, orange silica gel and basic silica gel such as type A silica gel , type B silic gel ,type C silica gel and another special silica gel Column chromatography silica gel . We are Chinese manufacturer of silica gel and supplying it across the world. Silica gel manufactured by us is of best quality which is widely used as cat litter, desiccant silica gel in anti-rusting and moisture-proof of product, packaging, drying and separation of gases, the catalyst carrier of petrochemical industry and so on.

Silicone industry trends

Silicone industry trends

Because the development time is limited, is limited experience accumulation and innovation of science and technology, the overall quality of the domestic silicone industry and abroad have a certain gap. Domestic production by now most of the products can meet the customer's production requirements, but meet customers require very high performance or special analysing situation still needs to be imported. On the special rubber and high-performance rubber, the domestic market there is a big gap. Second, since the silica gel industry is a capital-intensive industry, the current economic situation of the gravity of the also determines its survival environment, cash flow difficulties, serious product homogeneity, raw material prices rising, the survival of enterprises encountered great challenge. In addition, the silicone rubber industry is now form a vicious circle of price war, some manufacturer customer object for low-end manufacturers, constantly keep prices down, the whole industry profit margins shrinking.

On the other hand, the prospect of the silicone industry is considerable. Silicone industry is a capital-intensive industry and technology content high, compared with the labor-intensive industry will have a better development momentum, the silicone material is mainly used in electronic appliances, medical equipment, baby products, such as a big industry, wide range, and a lot of used rubber products will be gradually replaced by silica gel.

At the same time, also want to realize now silicone rubber industry internal competition fierce, owing to the unfavourable economic situation and the corresponding monetary policy, small and medium-sized enterprise cash flow is more difficult, it is a challenge for a capital-intensive industries, but if to be able to have such an economic downturn, silicone rubber industry of tomorrow will be very good. Look from the products, the demand of silicone rubber industry is still a common gas phase adhesive, at the same time, the flame retardant plastic, low-grade rubber and liquid rubber and other special analysing demand rising, the adhesive with high content of science and technology, value added from the previous two regular glue is bigger, so all the species in the future there will be a large market space.

Something about lihuachemical.com

Product Overview
Inert ceramic balls with high strength, high chemical and thermal stability properties, inert ceramic balls can be high temperature, high pressure and corrosive acid, alkali , salt and various organic solvents , inert ceramic balls are widely used in petroleum , chemical, fertilizer, natural gas and environmental protection industries. Inert ceramic balls as the catalyst in the reactor and the cover of the support material, into the buffer liquid and the gas in the reactor catalyst impact , protecting the catalyst in the reactor and improve the distribution of liquid and gas.

Product features

Inert ceramic ball has high strength, high chemical stability, thermal stability and resistance to high temperature, high pressure and acid, alkali, salt and the characteristics of various organic solvent corrosion.

Range of application

Inert ceramic balls are widely used in petroleum, chemical industry, fertilizer industry, natural gas and environmental protection and other industries.

Ammonia decomposition catalyst by the high temperature roasting MgO style carrier, load active component Ni and other growth substance composition, has the very high catalytic activity, high mechanical strength, excellent heat resistance and resistance to coking properties, is mainly used in coke oven gas purification recovery unit in ammonia decomposition furnace, will all of NH3 and HCN in the coke oven gas and other toxic gases into N2 and H2 and CO2, effectively solves the problem of equipment corrosion and environment pollution in coke oven gas.

De-oxygenation catalyst takes precious metal as active component basis loading on activated alumina carrier, which is mainly used to remove oxygen from hydrogen gas, also for nitrogen, CO, CO2, Argon and inert gas.

Operation for hydrogen gas and Argon gas could be done under normal temperature while space velocity (3~10)×103 h1 and residual oxygen could be 0.2ppm. For synthesis gas, coal gas and coking dry gas, operation have to be done at temperature 110~140℃, pressure>0.1Mpa, space velocity (1~4)×103 h-1, and residual oxygen could be <1ppm

The application of vinyl resin

1, fiberglass and liner

Vinyl resin  commonly used in a high temperature requirements , strong corrosion conditions FRP products , such as the production of large fiberglass storage tanks, tankers , towers , pipes , fans and so on. To be anti- corrosion steel container , concrete ducts are also commonly used to make Vinyl  resin fiberglass liner .
    Large chemical fertilizer urea granulation tower wall in the mid-1960s anti-corrosion coatings , urea crystallization on the concrete wall corrosion is very serious. 1969 Sichuan Luzhou Natural Gas Chemical Plant took the lead with epoxy fiberglass liner corrosion success. But epoxy resin viscosity, construction inconvenience , in recent years has begun to replace the epoxy Vinyl  resin used for urea granulation tower wall corrosion

Since Vinyl  resin has good strength, corrosion resistance and temperature resistance , and thus it can be used to make gel coat resin , used as artificial agate , marble, sanitary ware and other high-end products gelcoat . Vinyl resins to improve thixotropy and viscosity , can be added fumed carbon , together with a small amount of polar additives such as glycerol , BYK605 and so on.

2 , resin cements , mortars
   A Vinyl  resin prepared mortar , mortar for corrosion resistant lining brick panels , paving , pointing , but also corrosion-resistant resin mortar for the whole ground. Such as Beijing Chemical Plant Engineering chlor alkali evaporation surface , the medium is sodium hydroxide, 30% concentration , the use of Vinyl  resin mortar to do the whole floor , China's peaceful construction companies and other construction units on how to reduce the shrinkage of resin mortar summarizes certain aspects experience

3 , the coating
 1) light-cured coatings
Vinyl  resin with benzoquinone, benzoin ethers such as the presence of a photoinitiator , by ultraviolet radiation , can lead to crosslinking and curing extremely fast, in seconds . This feature is made use of light- curable vinyl coating save energy , greatly improving production efficiency and has a good prospect

2) flake paint
   With a Vinyl  resin and glass flake , etc. made of flake paint , can be used for equipment lined steel containers are widely used in petrochemical, metallurgy , papermaking , electroplating , chlor-alkali , medicine, food , construction and other industries, such as power plants water supply system of the desulfurization tower , sodium hydroxide , hydrochloric acid tank, etc. , exhaust system FGD precipitator , absorber , oxidation tower ; duct, chimney wall corrosion in high temperature and strength requirements of the occasion , often using flake paint and fiberglass composite structure.

What is Erythorbic Acid?

Erythorbic Acid is a kind of stereo isomer, vitamin C and so on chemical properties similar to vitamin C. Different ascorbic acid as a white to pale yellow or crystal powder, odourless, has a sour taste, 166-172 ℃, melting point and decomposition, with light gradually. Drying condition and is very stable in the air, and when exposed to the atmosphere in aqueous solution is metamorphic rapidly, almost no physiological activity of ascorbic acid, its oxidation resistance is better than that of ascorbic acid, but poor heat resistance, strong reducibility, heavy metal ions can promote the decomposition of ascorbic acid soluble in water, room temperature solubility of 40 g / 100 ml, soluble in ethanol, 5 g / 100 ml, hardly soluble in glycerin, insoluble in benzene, 1% aqueous solution of the PH value of 2.8.

Oxidation resistance

Erythorbic Acid, the antioxidant capacity of far more than vitamin C, no vitamin C, but it will not hinder the body against the bad blood acid absorption and utilization. Ingested ascorbic acid, can be transformed into vitamin C in the body.

The us food and drug administration (1980) will this product as a generally accepted safety material.

2 physical properties

Erythorbic Acid  is white to yellow-white crystal granular or crystal powder, odourless, slightly salty, melting point 200 ℃ above decomposition, exposed to the air is quite stable in dry state without becoming dry. But in aqueous solution, when there are air, metal, heat, light, oxidation, soluble in water, room temperature solubility is 16 g / 100 ml, hardly soluble in ethanol, 2% aqueous solution of the PH value of 6.5 to 8.0.

About us

   SINOCHEM NANJING is a diversified large-scale group company, mainly focusing on manufacturing, research and development of new products, and currently, its business has expanded to the fields of Industry Chemicals, Food additives & Feed Additive, etc.
    In recent years, SINOCHEM NANJING has been developing rapidly with expanding scale, improving benefits and outstanding management. The company has been awarded the certificates of ISO9001, ISO14001 and OHSAS18001 by TUV. Meanwhile, it has also been honored as the "AAA" grade enterprise within the fields of Qualification and Credit by the Shenzhen Development Bank and the Contract Abiding, "AAA" grade enterprise by the Provincial Administration for Industry and Commerce for years, as well as "AAA" grade excellent foreign trade enterprise by the Committee of the Credit System of China Foreign Trade & Economic Cooperation Enterprise. SINOCHEM NANJING has been devoting itself to offering qualified products, reliable service with competitive price and professional staffs to meet the demands of the clients.

what is Citric Acid Anhydrous?

Citric Acid Anhydrous , formula C6H8O7, is a colorless, translucent crystals or white granules or white crystalline powder , often containing one molecule of water of crystallization , odorless, very sour taste , soluble in water, alcohol and ether. Suitable crystallization temperature control obtained anhydrous citric acid . Acidic aqueous solution. In dry air, slight weathering , deliquescence in moist air . Mainly for the food and beverage industry as a sour agent , acidity regulator, flavoring agents and preservatives , preservative . Also the chemical industry, cosmetics industry and the industry as a washing antioxidants, plasticizers , detergents.

Character

Colorless transparent crystals or white particles, or white crystalline powder, often contain molecular crystal water, odourless, taste very acid, soluble in water, alcohol and ether. The calcium salt easy dissolve in cold water than hot water, and the properties of commonly used to identify and separate citric acid. Crystallization in control the temperature of the appropriate anhydrous citric acid can be obtained. Acidic aqueous solution. Micro have to weathering in dry air, deliquescence in moist air. More than 175 ℃ decomposition release water and carbon dioxide.

Physical and chemical properties: the relative density 1.542, melting point 153 ℃ (water), the refractive index of 1.493 ~ 1.509, the solution crystallization critical temperature 36.6 ℃, 36.6 ℃ above crystallization of anhydrous citric acid, crystallization of citric acid monohydrate) below 36.6 ℃.

Use

Mainly used for food and beverage industry as sour agent, acidity regulator, flavouring agent, preservative and antistaling agent. Also in the chemical industry, cosmetics industry and washing industry used as antioxidant, plasticizer and detergent

Storage

Avoid light, sealed, dry place storage

About us

   SINOCHEM NANJING is a diversified large-scale group company, mainly focusing on manufacturing, research and development of new products, and currently, its business has expanded to the fields of Industry Chemicals, Food additives & Feed Additive, etc.

The advantage of filling hollow glass microspheres

The advantage of filling hollow glass microspheres

hollow glass microspheres as the glass filled a, also occupy a certain market share in the market. In nowadays under the condition of all kinds of filling materials dripping wet markets, what is the fill hollow beads in the market for a long time and unbeaten? Let's take a look at the advantage of the hollow beads filled, maybe you will understand.

As a spherical particle, hollow beads filling used in the paint, paint has the following advantages:

1. The dosage of resin/add less amount of potential: because in any shape, spherical with a minimum of specific surface area, also have the fewest demand of resin of hollow bead filled in. The accumulation of particles situation has been improved. Hollow beads filled the wide particle size distribution makes the small ball is able to fill in the space between the big microspheres. The result... In fact is: high addition amount and high solid content, low VOC and reducing the amount of other ingredients;

2. Low viscosity/improve liquidity: with irregular shape particles, filling hollow beads are easy to scroll between each other. It makes use of cenosphere system has low viscosity, good fluidity. And the system of spraying can be also improved;

3. Hardness/wear resistance: hollow beads filling is a kind of high strength, and hard microspheres, it can enhance the hardness of coatings, scrubbing resistance and abrasion resistance;

4. Excellent heat insulation effect: because of Hollow glass microspheres filled hollow sphere structure that makes it fills in the coating has excellent thermal insulation effect;

5. Luster control: as a kind of filler, the role of hollow bead filled can reduce gloss, used to control, even in addition amount under the condition of the demand is higher, they can also eliminate the matting agent like ordinary easy to cause the increase in viscosity, and the cost is low;

6. The inertia: hollow beads filling is composed of inert ingredients, thus has excellent durability, corrosion resistance, corrosion resistance and chemical resistance;

7. Opacity: hollow beads filling up the hollow spherical slow fire and scattering light, the result is to increase the coating of hiding power;

8. Dispersion: fill the hollow beads scattered as mineral filler, as a result of hollow bead filled thick wall and high compressive strength, it can bear all kinds of mixer, extruding machine and mould machine machining process;

9. No crystalline silicon pollution: unlike other packing, filling hollow beads in crystalline silicon content below the level of no harm. Such cenosphere is seen as a carcinogen, also do not need special hazard warning sign.