CAS No: | 7681-53-0 |
Formula: | H2NaO2P |
EINECS: | 231-669-9 |
Stock Availability | In stock |
Brand Name | Look chem |
Origin | China |
Sodium hypophosphite is an inorganic salt with the chemical formula NaH2PO2, monoclinic crystal or pearly crystal or white crystalline powder.
It is easily soluble in water, ethanol, glycerin, slightly soluble in ammonia, ammonia water, and insoluble in ether.
Sodium Hypophosphite is neutral in aqueous solution and has strong reducing properties.
Sodium Hypophosphite is relatively stable when stored in a dry state, and rapidly decomposes when heated above 200°C, releasing toxic phosphine that can ignite spontaneously.
It will explode when exposed to strong heat, and will explode when mixed with potassium chlorate or other oxidants.
Sodium hypophosphite is a strong reducing agent, which can reduce the salts of gold, silver, mercury, nickel, chromium, diamond, etc. to a metallic state.
Item | Specification |
Product Name | Sodium Hypophosphite Powder |
CAS No. | 7681-53-0 |
Appearance | White crystalline powder |
Shelf Life | 2 years |
Packing | 1kg/bag,25kg/bag or as your requirements |
Used as an electroless plating agent
Used as antiseptic and fresh-keeping agent
Industrial applications
For sodium hypophosphite reduction electroless copper plating and other electroless copper plating processes, they have the same chemical principle.
Its essence is also an electroless copper plating method to reduce the free copper ions in the copper plating solution to solid copper crystals and plate them on the surface of the substrate with the help of a suitable reducing agent.
Nowadays, the electroless copper plating process for sodium hypophosphite reduction is very similar to the electroless copper plating process for formaldehyde reduction, but the reaction mechanism is much more complicated.
This is because pure metallic copper has no catalytic activity for the oxidation reaction of sodium hypophosphite.
When using it as a reducing agent for electroless copper plating, it cannot achieve an autocatalytic electroless plating reaction through the copper particles and silver particles produced in the activation and sensitization stages like the formaldehyde system.
To make the electroless copper plating reaction of the sodium hypophosphite system continue, it is necessary to add a substance with catalytic activity for the electroless plating reaction.
The current way to solve this technical problem is to learn from the process principle of electroless nickel plating.
Nickel ions are added to the plating solution, and a copper plating layer containing a small amount of nickel is obtained through the co-deposition of metallic nickel and copper.
The deposited nickel particles can catalyze the reaction of sodium hypophosphite reducing Cu2+, so as to ensure the continuous progress of the electroless copper plating reaction, and finally obtain a high-quality copper coating.
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
*We will monitor the logistics information in real time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
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.
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.
Different quantity has different discount.
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.
Yes. We’ll give you product analysis report before shipping.
Shandong Look Chemical
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.