Free Sample Cupferron CAS 135-20-6
Free Sample Cupferron CAS 135-20-6
Payment: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Min: 10 Gram
Delivery: 7 Days
Transporta: Ocean, Land,Air, DHL，TNT
Port: Shanghai Port, Qingdao Port
Brand: zhishang chem
|Cupferron Chemical Properties|
|Melting point||150-155 °C (dec.) (lit.)|
|Boiling point||278.95°C (rough estimate)|
|density||1.3092 (rough estimate)|
|refractive index||1.6500 (estimate)|
|solubility||well soluble in water and ethanol.|
|color||Needles from water|
|Water Solubility||<0.1 g/100 mL at 18.5 ºC|
|Stability:||Stable, but may be moisture sensitive. Incompatible with strong oxidizing agents, strong bases, strong acids.|
Cupferron is an important analytical reagent, which is the ammonium salt of n-nitrosohydroxylamine, commonly known as cupferron. Usually, it is white or light yellow, bright scaly crystal, with sweet taste. After a long time, the color will darken due to slow decomposition, but in fact, it can also be used in analysis. It is easily soluble in water, benzene, alcohol and ether. The reagent is thermally decomposed into nitrobenzene by chemicalbook. It is unstable in light and air and needs to be stored in a brown ground reagent bottle. Usually, a small amount of ammonium carbonate wrapped in paper or cloth is placed in the bottle as a preservative and placed in a sealed, dark and cool place. It can be used as precipitant and solvent extractant of copper, iron, tin, titanium, vanadium, chromium and other elements, and the determination of rare earth as masking agent.
|Shelf Life||2 years|
|Packing||1kg/bag,25kg/bag or as your requirements|
Colorimetric determination of aluminum, bismuth, copper, iron, mercury, zinc, manganese, niobium, gallium, tantalum, thorium, titanium, vanadium, tin and other elements. Quantitative determination of iron in strong acid solution, quantitative analysis of vanadate, separation of copper and iron when together with other metals, as a masking agent when measuring rare earth.
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1. ≤50kg, we recommend express delivery, usually called DDU service;
2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;
3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;
4. For high-value products, please choose air and express to ensure the safety of the products.
Do you accept sample order?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
How to confirm whether the product quality meets our needs before placing an order?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
What’s your MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
Do you supply product report?
Yes. We’ll give you product analysis report before shipping.