Chromium(III) oxide CAS：1308-38-9

Details:

Products Description

Chromium trioxide, also known as chromium oxide, chromium oxide green, chromium green, is a dark green crystalline powder, metallic luster, belongs to the hexagonal crystal system or trigonal crystal system, and α-alumina is the same crystal type. Chemical formula Cr2O3, molecular weight 151.99, relative density 5.21(21 ° C), Mohs hardness is 9, harder than quartz, steel, melting point 2266±25 ° C, boiling point above 3000 ° C, chemical properties are extremely stable. Magnetic, insoluble in water and ethanol, both acid and alkali resistant. Even in the red heat state, hydrogen is almost not reduced. In addition, it is difficult to react with sulfur and hydrogen sulfide when heated. The green chromium oxide burned at high temperature is inert to acid and base, but it can be fused with acid flux and converted into soluble chromium (Ⅲ) salt. And bromate alkali metal brine solution is heated together to dissolve the reaction, soluble in hot potassium bromate solution.

Chromium(III) oxide

CAS: 1308-38-9

Molecular formula Cr2O3

Molecular weight 151.99

                                                                                                                                                                                                                          

    

Application

Chromium trioxide hydrate, commonly known as "water chromium green", is a purple amorphous crystal or a blue-gray-green gelatinous body. Chromium trioxide can be used as a green pigment in printing inks and coatings, in addition as a colorant in glass, ceramic tiles, ceramic vessels and other aspects have a wide range of uses, can also use the hard properties as green oil and other greasy abrasive materials, in chromium plating and nickel plating when grinding bottom plate and surface polishing use. Chromium trioxide can also be made into chromium magnesium or magnesium chromium refractory bricks, and can be used as metal chromium raw materials. The most commonly used green pigment in enamel production is chromium trioxide, whose color can be from bright green to dark green, with excellent light resistance, heat resistance, chemical corrosion resistance and other properties, high hiding power, but dark color. It can be ground and added to the color base glaze separately to produce a bean green color glaze, the amount of which is 3% ~ 5% of the glaze block; It can also be made with oxides or compounds of aluminum, zinc, calcium, etc., at high temperatures to make different shades of green pigments.

Package

  1. Inner double plastic bags----25kg/Fiber drum (35*35*45cm, GW: 28kg, NW: 25kg); 

  2. Inner double plastic bags----5kg/Aluminum foil bag (GW: 6.5kg, NW: 5kg). 

  3. Inner double plastic bags----1kg/Aluminum foil bag (GW: 1.5kg, NW: 1kg). 

P.S.: we accept packaging customization. 

Delivery
  1. Stock products are normally shipping within 3 working days.  

  2. For rush delivery, please contact our sales team for particular arrangement. 

Shipping Details: 
  1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker. 

  2. Shipping details & shipping documents will be provided and sent by email. 

  3. We keep tracking the shippment until clients well received. 

  4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently. 

Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,  

Our company has a number of sales team, service and information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.  

Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization,  Keep moving!  

    

Our advantages:

Hebei Nengqian Chemical Import and Export Co., LTD.. is located in xingtai City, Hebei Province, China. It is a biotechnology enterprise engaged in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability of product quality from all aspects. The company has a complete sales service system, the products are exported to countries all over the world, and have won a good international reputation with excellent quality and excellent service.
The company has been adhering to the basic principles of "integrity, quality, service, and win-win" to serve customers, constantly strict requirements, set goals, and implement win-win development.

 

   

 

1. All inquiries will be replied within 12 hours.

2. Dedication to quality, supply & service.

3. Strictly on selecting raw materials.

4. Reasonable & competitive price, fast lead time.

5. Sample is available for your evaluation & Formulation development.

6. Faster delivery:Sample order in stock and 3-7 days for bulk production.

7. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.

8. After-Sale Service:

1) International Authorized Third-Party Test For The Products You Demand.

2) 30 Days Warranty of quality of goods.

 

 

 

FAQ: 
1. Are you a trade company or factory   
We are a  factory with our own trading company.  

1. How do you control the quality   
   Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.   
2.  How long is lead time  
   We deliver goods within 3 days for small order, 7-10 days for bulk order.   
3.  Where is your factory located How can I visit the factory   
    Our factory located in WEIFANG, China. It is only two hours from QINGDAO.  

6. Can i get some samples 
  Yes, we can supply free sample, but the shipping cost be paid by our customers. 

7. How to start orders or make payments 
  Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,  

8. How to confirm the Product Quality before placing orders 
  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. 
  You can send us your product specifications and requests,we will manufacture the products according to your requests. 

9. How long is lead time

We deliver goods within 3 days for small order, 7-10 days for bulk order.

 

10. How do you treat quality complaint

  First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.