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Sodium Hypophosphite Q&A

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Update time : 2025-11-17

TDS, COA, MSDS, CAS, Molecular Formula, Structural Formula, Decomposition Temperature, Usage, Price, Production Process, Solubility of Sodium Hypophosphite are frequently asked questions. Below we summarize the frequently asked questions about sodium hypophosphite as follows.

 

1, Are sodium hypophosphite and sodium phosphite the same product?

They are two completely different chemicals, but both have reducing properties, and the valence of phosphorus is different, +1 and +3 respectively.

 

2, is the appearance of quicksand or powder?

Generally, it is white transparent crystal with quicksand physical properties. Powdered due to the content of more than 105%, the existence of very few, but also not easy to save.

 

3, Is sodium hypophosphite easy to absorb moisture?

As the content reaches 101-103%, it will absorb moisture when exposed to air for a long time, but there is no need to worry about this problem for a short time.

 

4, What is the decomposition temperature?

Sodium Hypophosphite decomposes into harmful gases above 200℃, so it must be avoided from fire source. It is very stable at room temperature.

 

5, Is it an acid salt?

No, it is a kind of positive salt with reducing property, and only one H of NaH2PO2 can be ionized. So it is not acid salt.

 

6,What should we pay attention to the storage and transportation?

It should be strictly stored separately from oxidizing agent, avoiding high temperature and humid environment. Transportation in accordance with the ordinary chemicals by land and sea.

 

7, is the reducing property the strongest?

No, the reducing property belongs to the medium, but its price is advantageous, easy to use and good stability. In short, the practicality is stronger.

 

8, Why there are two CAS numbers?

CAS:10039-56-2 is monohydrate, 7681-53-0 is anhydrous, strictly speaking, anhydrous is basically impossible to produce and difficult to exist. Regardless of which CAS number is inquired about, it is actually monohydrate that is used globally.

 

9, is there any food grade?

There is no food-grade standard for this product, but it has been used as food additive in some Central Asian countries.

 

10, is there any analytical purity grade?

There is no standard for analytical purity sodium hypophosphite, but chemical reagent enterprises basically purchase 102% high purity products from our factory as analytical purity reagent.

 

11, how much is the price, how much is a ton?

Different prices at different times, different indicators, different brands prices are also different. The historical price is about 12,000-58,000 RMB/ton. The price is linked to raw materials, capacity and supply and demand.


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