Основные органические химикаты по лучшей цене дициандиамид
15,00 $
Китай заводская цена 99.8% Меламиновый порошок для мочевины и
- Категория: Amine >>>
- Поставщик: Zibo Gem New Material Co. Ltd.
Сохранить в закладки 1600731524964:
Описание и отзывы
Характеристики
Products Description
Melamine, commonly known as melamine, protein extract, molecular formula C3H6N6 and named by IUPAC as "1,3, 5-triazine-2,4, 6-triamine", is a triazine nitro-containing heterocyclic organic compound used as a chemical feedstock. It is white monoclinic crystal, almost odorless, harmful to the body, should not be used in food processing or food additives.
Chemical property
Non-combustible and stable at room temperature. The aqueous solution is weakly basic (pH=8), and can form melamine salt with hydrochloric acid, sulfuric acid, nitric acid, acetic acid, oxalic acid, etc. In the neutral or slightly alkaline case, and formaldehyde condensation into a variety of hydroxymethyl melamine, but in the slightly acidic case (pH=5.5 ~ 6.5) and hydroxymethyl derivatives of the polycondensation reaction and the formation of resin. In case of hydrolysis of strong acid or strong base aqueous solution, the amine group is gradually replaced by the hydroxyl group, which becomes cyanuric acid diamide, and then further hydrolyzes into cyanuric acid monamide, and finally becomes cyanuric acid.
Non-combustible and stable at room temperature. The aqueous solution is weakly basic (pH=8), and can form melamine salt with hydrochloric acid, sulfuric acid, nitric acid, acetic acid, oxalic acid, etc. In the neutral or slightly alkaline case, and formaldehyde condensation into a variety of hydroxymethyl melamine, but in the slightly acidic case (pH=5.5 ~ 6.5) and hydroxymethyl derivatives of the polycondensation reaction and the formation of resin. In case of hydrolysis of strong acid or strong base aqueous solution, the amine group is gradually replaced by the hydroxyl group, which becomes cyanuric acid diamide, and then further hydrolyzes into cyanuric acid monamide, and finally becomes cyanuric acid.
Specification
Molecular structure data
Molar refractive index: 33.23
Molar volume (cm3/mol) : 75.9
Isotonic specific volume (90.2K) : 267.2
Surface tension (dyne/cm) : 153.2
Polarizability (10-24cm3) : 13.17
Molar refractive index: 33.23
Molar volume (cm3/mol) : 75.9
Isotonic specific volume (90.2K) : 267.2
Surface tension (dyne/cm) : 153.2
Polarizability (10-24cm3) : 13.17
Item | Standard | Test Result | |
Purity | 99.5% | 99.87% | |
Moisture% | 0.1% | 0.07% | |
PH Value | 7.5-9.5 | 8.50% | |
Ash Content% | 0.03% | 0.02% | |
Turbidity(Degree) | 20 | 15 | |
Pt/Co Scale(Hazen) | 20 | 15 | |
Appearance | White Powder Without Foreign Substance | ||
Manufacturing Technique
Application
It is mainly used as the main raw material of melamine formaldehyde resin and the analysis reagent of organic elements. It is also used for synthesis of organic and resin as tanning agent and filler for leather processing.
1. The main raw material for the manufacture of melamine formaldehyde resin, used as an organic element analysis reagent, and also used in the synthesis of organic and resin as a tanning agent and filler in leather processing.
2. The modified resin can be used as a bright-colored, durable and hard metal coating.
3. Melamine powder can be used in the plastics and coatings industry, and can also be used as an anti-folding and anti-shrinking treatment agent for textiles.
2. The modified resin can be used as a bright-colored, durable and hard metal coating.
3. Melamine powder can be used in the plastics and coatings industry, and can also be used as an anti-folding and anti-shrinking treatment agent for textiles.
Packing & Delivery
Operation notes:
closed operation, full exhaust. Operators must be specially trained and strictly abide by operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety protective glasses, respirator permeating work clothes, and rubber gloves. Avoid producing dust. Avoid contact with oxidants and acids. When handling, light loading and unloading should be done to prevent damage to packaging and containers. Equipped with leak emergency treatment equipment. An empty container may contain harmful residue.
Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from oxidizers and acids, and should not be mixed. The storage area should be equipped with suitable materials to contain leaks.
Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from oxidizers and acids, and should not be mixed. The storage area should be equipped with suitable materials to contain leaks.
Company Profile
Our Advantage
1. Purity, Package, Mark, thiry party test (SGS,BV,Intertek,CIQ).
2. Sample order are acceptable.
3. reply you for your inquiry asap within 12 hours.
4. Cargoes photo before and after loading into container will be sent to you by email.
5. Guaranteed delivery time.
6. Full experience in this field.
7. Good cooperation with cargo agents and shipping companies.
8. professional sales and engineers will solve the problem you concern.
2. Sample order are acceptable.
3. reply you for your inquiry asap within 12 hours.
4. Cargoes photo before and after loading into container will be sent to you by email.
5. Guaranteed delivery time.
6. Full experience in this field.
7. Good cooperation with cargo agents and shipping companies.
8. professional sales and engineers will solve the problem you concern.
FAQ
Q1. Are you a factory or trading company?
A: Yes,we are factory, but not only factory, we also have sales team, own designers, own showroom, can help buyers to decide which products are their suitable choice, and all your inquiry will be replyed within 24 hours.
Q2. Could you send me all your catalogues and price list?
A: As we have more than thousands of items, even 1 item have different size and package, it is really hard to send you all our catalogue and price list for you. Please inform me the items, size and packages you are interested in, so we can offer you the price list you need for your reference .
Q3. Can I get some samples for testing?
A: we are honored to provide samples, the shipping cost should be paid by customers at first. And it will be returned to you in our first time cooperation.
Q4. How does your factory do regarding quality control?
A: Our factory has passed ISO9001 2008, REACH, FAMIQS Certificate.
Q5. What's your Delivery Time?
A: In generally, the delivery time is 5 days-15 days after receiving payment. For large quantity it will be checked with production dept. We will make the delivery as soon as possible with the guaranted quality.
Q6. What is payment terms?
A: L/C, T/T, Western Union, and Alibaba Trade Assurance are all accepted, and if you have better idea, please feel free to share with us.
Q7. Which documents can you supply?
A: We usually provide our customers with Commercial Invoice, Price List, Packing List, COA, Origin Certificate, Quality/Quantity Certificate, Beneficary's Certificate, MSDS, B/L and others as your request.
A: Yes,we are factory, but not only factory, we also have sales team, own designers, own showroom, can help buyers to decide which products are their suitable choice, and all your inquiry will be replyed within 24 hours.
Q2. Could you send me all your catalogues and price list?
A: As we have more than thousands of items, even 1 item have different size and package, it is really hard to send you all our catalogue and price list for you. Please inform me the items, size and packages you are interested in, so we can offer you the price list you need for your reference .
Q3. Can I get some samples for testing?
A: we are honored to provide samples, the shipping cost should be paid by customers at first. And it will be returned to you in our first time cooperation.
Q4. How does your factory do regarding quality control?
A: Our factory has passed ISO9001 2008, REACH, FAMIQS Certificate.
Q5. What's your Delivery Time?
A: In generally, the delivery time is 5 days-15 days after receiving payment. For large quantity it will be checked with production dept. We will make the delivery as soon as possible with the guaranted quality.
Q6. What is payment terms?
A: L/C, T/T, Western Union, and Alibaba Trade Assurance are all accepted, and if you have better idea, please feel free to share with us.
Q7. Which documents can you supply?
A: We usually provide our customers with Commercial Invoice, Price List, Packing List, COA, Origin Certificate, Quality/Quantity Certificate, Beneficary's Certificate, MSDS, B/L and others as your request.
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