Sodium Hypophosphite CAS 7681-53-0
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Factory Supply Sodium Hypophosphite CAS 7681-53-0 with Best Price
- Appearance: White powder
- Purity: 99. 0%min
- Stock: In stock
- Sample: Available
- Zhishang Chemical: Sodium Hypophosphite Supplier & Manufacturer
Sodium Hypophosphite: The Complete Guide
- Item 1: Basic Info
- Item 2: What is Sodium Hypophosphite?
- Item 3: Sodium Hypophosphite Uses
- Item 4: The Manager has Something to Say
- Item 5: Application of Sodium Hypophosphite
- Item 6: Sodium Hypophosphite Reduction Electroless Copper Plating Process
- Item 7: Quality Control of Sodium Hypophosphite
- Item 8: Hot Sale Products
- Item 9: Get Sodium Hypophosphite Quotation
Sodium Hypophosphite for Sale
Basic Info
Basic Info
Chemical Properties
Other Info
Basic Info
| Chemical Name: | Sodium Hypophosphite |
| Other Name: | Phosphinicacid, sodiumsalt; Sodium hydrogenphosphite(nah2po2) |
| CAS: | 7681-53-0 |
| EINECS: | 231-669-9 |
| Type: | Food additives; Organic raw materials |
| Molecular Formula: | H2NaO2P |
| Molecular Weight: | 87.98 |
Chemical Properties
density | 1.77 g/cm3 at 20 °C |
Water Solubility | 909g/L at 30℃ |
Merck | 13,8703 |
Stability: | Stable. Incompatible with strong oxidizing agents. |
Other Info
| Brand Name: | Zhishang Chemical |
| Provide: | Sodium Hypophosphite MSDS; Sodium Hypophosphite COA |
What is Sodium Hypophosphite?
Sodium hypophosphite, referred to as SHPP/HYP0. Molecular formula: NaH2PO2. H2O, molecular weight: 105.99. Appearance: pearly crystal or white crystalline powder. Odorless, salty, strong water absorption, easy to deliquescence, soluble in water and glycerin. The aqueous solution is neutral, and it will decompose rapidly when heated above 200°C, releasing phosphine gas which may be naturally poisonous. It is an inorganic hypophosphite with strong reducibility and can explode when in contact with strong oxidants.
The existing production method is to make quicklime and water into a lime emulsion with a weight ratio of 1: 16 and pump it into the reactor, put the measured liquid alkali into the reactor by using the liquid level difference, and then drive the reactor with nitrogen Inner air, open the kettle inner jacket steam heating to 40～45 ℃ simultaneously, add yellow phosphorus 90～100KG, react under stirring situation. After the reaction is finished, filter with a plate and frame filter press, decalcify the filtrate, concentrate once, adjust the pH value, concentrate twice, crystallize by cooling, and pack centrifugally. Its defect is that liquid caustic soda is batched in the high-level metering tank, and is put into the reaction kettle by gravity using the liquid level difference, and the pressure is relatively small.
Because the reaction kettle is easy to scale, it is easy to block the liquid caustic nozzle installed on the reaction kettle, which often leads to dismantling and dredging of the liquid caustic pipeline, which seriously affects the progress of production; during the reaction of sodium hypophosphite, air is strictly prohibited in the kettle , Phosphine gas will explode when it encounters air, so the air must be driven out before the reaction is fed, and the cost of exhausting the air with nitrogen is relatively large, and the operation is inconvenient; the reaction filtrate is filtered with a plate and frame filter press, and the filter The moisture content of the cake is generally 45-50%. No matter how the filter cake is washed, it always contains 1-1.5% sodium hypophosphite and is transported away with the waste residue. The waste slag with high water content is viscous when dismantled, and operation is inconvenient; The yellow phosphorus proportioning of every kettle is 90～100KG, and output is lower.
Sodium Hypophosphite Uses
Sodium hypophosphite is mainly used as a reducing representative for electroless plating. Large-scale devices and also tiny objects that can not be electroplated; objects with complicated forms that need high accuracy and also concave as well as convex patterns; objects that call for high surface hardness and put on resistance on the internal wall of deep openings; plastics, porcelains, glass, The surface area of non-metallic materials such as quartz is metallized to get a thick and also consistent nickel-phosphorus coating that is better than electroplating.
Widely utilized in electronics, aeronautics, machinery, oil and also various other sectors. It can likewise be made use of to manufacture numerous water therapy representatives, catalysts as well as stabilizers for chemical reactions, interfacial activators for resins, molecular weight regulators, warm stabilizers and preservative.
The Manager has Something to Say
This is William, CEO of Zhishang Chemical Co., Ltd.
Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.
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Application of Sodium Hypophosphite
Sodium hypophosphite is used as an analytical reagent, often used as a strong reducing agent, and also used in clinical testing and electroplating. Examples of its applications are as follows:
Preparation of copper nanoparticles
For electroless nickel plating
Used in the preparation of olanzapine intermediates
Preparation of copper nanoparticles
In recent years, metal nanoparticles have shown extremely important application value in various fields due to their good electrical and thermal conductivity. Copper is the only metal that occurs naturally in large quantities and occurs in various ores; it is second only to aluminum in consumption of non-ferrous materials. As an important industrial raw material, nano-copper particles can greatly reduce industrial costs in the production of high-grade lubricants, conductive pastes, high-efficiency catalysts, etc., and have broad application prospects.
Therefore, in recent years, the research on copper nanoparticles has attracted widespread attention at home and abroad. Some studies have used the liquid phase reduction two-step method, oleic acid as the extractant and protective agent, glucose and sodium hypophosphite to reduce copper sulfate pentahydrate to cuprous oxide and elemental copper respectively, and prepared a particle size of about 50-100 nanometers Uniformly dispersed spherical copper nanoparticles were characterized by XRD, SEM and TEM. The results show that under the protection of oleic acid, spherical nano-copper particles with good dispersion and anti-oxidation properties can be prepared by two-step liquid phase reduction method.
For electroless nickel plating
Electroless nickel plating, especially the system using sodium hypophosphite as the reducing agent, is widely used in the industry at present. Some studies have disclosed a nickel sulfate-based chemical plating solution for drilling drill pipes, which is prepared from the following raw materials in parts by weight: nickel sulfate, 60-80 parts; sodium hexametaphosphate, 20-30 parts; ethylenediamine Disodium tetraacetate, 10-20 parts; Sodium citrate, 4-6 parts; Citric acid, 6-8 parts; Copper sulfate, 3-5 parts; Sodium acetate, 2-4 parts; Thiourea, 0.1-0.3 parts Water, 900-1100 parts; 7-9 parts of sodium hypophosphite and zinc borate in total, the weight ratio of sodium hypophosphite and zinc borate is 6-8:1.
The electroless plating solution provided by the invention is stable in property, and can significantly improve the corrosion resistance of the drill pipe after being treated. This technical effect is related to the ratio by weight of sodium hypophosphite and zinc borate in the raw material. When the weight ratio of sodium hypophosphite to zinc borate is 6-8:1, the anticorrosion effect on the drill pipe is the best.
Used in the preparation of olanzapine intermediates
The preparation method of olanzapine intermediate 4-amino-2-methyl-10H-thiophene[2,3-b][1,5]-benzodiazepine hydrochloride: in ethanol medium, 2-(2 -Nitroanilino)-5-methylthiophene-3-carbonitrile is reductively condensed under the action of hydrochloric acid, sodium hypophosphite and stannous chloride to obtain 4-amino-2-methyl-10H-thiophene[2,3 -b] [1,5]-benzodiazepine hydrochloride; said method adopts cleaning reagent sodium hypophosphite monohydrate to reduce the consumption of highly toxic reagent stannous chloride dihydrate, so that 2 in the prior art -(2-nitroanilino)-5-methylthiophene-3-carbonitrile and tin protochloride molar ratio 1: 3.36 is reduced to 1: 0.2, and product yield and purity are equivalent to prior art, this invention The inventive method greatly reduces environmental pollution and is suitable for industrialized production.
Sodium Hypophosphite Reduction Electroless Copper Plating Process
Chemical Plating is a technology to achieve metallization of non-conductor surfaces, which is widely used in surface modification, printed circuit manufacturing, electromagnetic shielding technology, electronic component packaging and other fields. Since electroless plating is the principle of self-catalyzed oxidation-reduction reaction on the surface of the substrate with catalytic activity by using the metal salt and reducing agent in the same solution under the condition of no external current, the metal or alloy coating is formed by chemical deposition on the surface of the substrate. A surface treatment technology, so it is also called Autocatalytic Plating, Electroless Plating or Electroless Plating.
According to the type of metal obtained by electroless plating, electroless plating can be divided into: electroless silver plating, electroless copper plating, and electroless nickel plating. Among them, electroless copper plating metal has the advantages of mature technology, good coating bonding force, high conductivity reliability, heat resistance and electromagnetic shielding, uniform coating thickness, and reasonable price, and is most widely used in electroless plating technology.
In the electroless copper plating solution, formaldehyde is replaced by other reducing agents to achieve electroless copper plating. There are literature and patent reports. The main alternative reducing agents include dimethylamine borane (DMAB), glyoxylic acid, sodium hypophosphite, etc. . Among them, the electroless plating system using sodium hypophosphite as a reducing agent has the characteristics of low pH value, low cost and relative safety, and has great development value and application prospect.
Reference
- Sodium hypophosphite – WikiPedia
- Wen Jin, Li Jie, Chen Qiyuan. Preparation of Nano Copper Particles by Sodium Hypophosphite Reduction Method[J]. Functional Materials, 2011, 42(1): 189-192.
- Wu Jing, Wang Shouxu, Zhang Min, et al. Research and Prospect of Sodium Hypophosphite Reduction Electroless Copper Plating Process[J]. Printed Circuit Information, 2010 (7): 26-29.
Sodium Hypophosphite Supplier and Manufacturer
As a sodium hypophosphite supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best sodium hypophosphite raw materials to customers all over the world.
Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.
If you have a demand for sodium hypophosphite and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.
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FAQ
Do you accept sample order?
We will make samples before mass production, and after the sample is approved, we’ll begin mass production. Doing 100% inspection during production, then doing random inspection before packing.
What’s your MOQ?
Our MOQ is 1kg. But usually we accept less quantities, such as 100g on the condition that the sample charge is 100% paid.
Is there a discount?
The different quantity has different discount.
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.
Do you supply product report?
Yes. We’ll give you product analysis report before shipping.
Shipping
1. ≤50kg, Express delivery recommended, usually called DDU service;
2. ≤500kg, Air shipping recommended, usually called FOB, CFR, or CIF service;
3. >500kg, sea shipping recommended, usually called FOB, CFR, or CIF service;
4. For high-value products, please select air shipping and express delivery for safe.
Quality Control of Sodium Hypophosphite
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