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Sodium thiosulfate

sodium thiosulfate is colorless transparent crystal fine particles.Sodium thiosulfate is used in gold mining, water treatment, analytical chemistry, the development of silver-based photographic film and prints, and medicine.
  • hypo,hyporice
  • colorless transparent crystal fine particles
  • 7772-98-7
  • Na2S2O3
  • 158.109
  • 231-867-5
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SPCIFICATION


SPCIFICATION


ITEM

STANDARD

TEST RESULT

Purity%

 

≥98.0

 

98.5

 

PH

 

6.5-9.5

 

7.5

 

Water Insoluble%

 

0.03

 

0.0001

 

Na2S

 

≤0.003

 

0.002

 

Fe

 

≤0.003

 

0.003



   Sodium thiosulfate COA_20220726085820.pdf

DESCRIPTION


DESCRIPTION


Sodium thiosulfate (sodium thiosulphate) is an inorganic compound and can soluble in water. Sodium thiosulfate is used in gold mining, water treatment, analytical chemistry, the development of silver-based photographic film and prints, and medicine. The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis.It is on the World Health Organization's List of Essential Medicines.


APPLICATION


APPLICATION


Sodium thiosulfate is used predominantly in industry. For example, it is used to convert dyes to their soluble leuco form. It is also used to bleach "wool, cotton, silk, soaps, glues, clay, sand, bauxite, and... edible oils, edible fats, and gelatin.


Medical uses

Sodium thiosulfate is used in the treatment of cyanide poisoning.Other uses include topical treatment of ringworm and tinea versicolor, and treating some side effects of hemodialysis  and chemotherapy.

 

Photographic processing

Silver halides, e.g., AgBr, typical components of photographic emulsions, dissolve upon treatment with aqueous thiosulfate.This application as a photographic fixer was discovered by John Herschel. It is used for both film and photographic paper processing; the sodium thiosulfate is known as a photographic fixer, and is often referred to as 'hypo', from the original chemical name, hyposulphite of soda. Ammonium thiosulfate is typically preferred to sodium thiosulfate for this application.

 

Neutralizing chlorinated water

Sodium thiosulfate is used to dechlorinate tap water including lowering chlorine levels for use in aquariums, swimming pools, and spas (e.g., following superchlorination) and within water treatment plants to treat settled backwash water prior to release into rivers. The reduction reaction is analogous to the iodine reduction reaction.

In pH testing of bleach substances, sodium thiosulfate neutralizes the color-removing effects of bleach and allows one to test the pH of bleach solutions with liquid indicators. The relevant reaction is akin to the iodine reaction: thiosulfate reduces the hypochlorite (active ingredient in bleach) and in so doing becomes oxidized to sulfate. The complete reaction is:


4 NaClO + Na2S2O3 + 2 NaOH → 4 NaCl + 2 Na2SO4 + H2O

Similarly, sodium thiosulfate reacts with bromine, removing the free bromine from solution. Solutions of sodium thiosulfate are commonly used as a precaution in chemistry laboratories when working with bromine and for the safe disposal of bromine, iodine, or other strong oxidizers.

 

STORAGE


STORAGE


Sodium Thiosulfate is usually packaged in 50kg plastic lined compound bags.Sodium Thiosulfate should storage in a cool, dry warehouse, and prevent exposure and rain proof in transportation.Do not be stored and mixed with acids and oxidants.


英文包装25公斤

FAQ

FAQ

 

Q1: May I get sample?

A1: Free sample is available, you only need to pay freight.

 

Q2: How long does it take for me to get sample?

A2: Usually it will cost about 5 days after delivery.

 

Q3: How can I place an order?

A3: You can contact us about your order details  by E-mail, WhatsApp, Skype, etc.

 

Q4: How can you guarantee your products are qualified?

A4: We will test the goods and issue COA before delivery

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