Is sodium thiosulfate a physical or chemical property?
Physical properties : Sodium thiosulfate is a white crystalline solid which is odorless and highly water soluble. It has a density of 1.667 g/mL and a melting point of 48.3°C.
What are the properties of sodium thiosulphate?
Sodium Thiosulfate Solution Properties (Theoretical)
| Compound Formula | Na2O3S2 |
|---|---|
| Appearance | White to clear liquid |
| Melting Point | 48 °C |
| Boiling Point | 100 °C |
| Density | 1.667 |
What type of chemical is sodium thiosulfate?
inorganic compound
Sodium thiosulfate (sodium thiosulphate) is an inorganic compound with the formula Na2S2O3. xH2O. Typically it is available as the white or colorless pentahydrate, Na2S2O3·5H2O. The solid is an efflorescent (loses water readily) crystalline substance that dissolves well in water.
Why is sodium thiosulfate soluble in water?
The solid is an efflorescent (loses water readily) crystalline substance that dissolves well in water….Sodium thiosulfate.
| Names | |
|---|---|
| Solubility in water | 20.1 g/100 mL (20 °C) 231 g/100 mL (100 °C) |
| Solubility | negligible in alcohol |
| Refractive index (nD) | 1.489 |
| Structure |
Is sodium thiosulfate neutral?
xH2O. Naturally, this white crystalline compound is found in its pentahydrate form represented as Na2S2O3. 5H2O. Solubility: Thiosulphate is a neutral salt that dissociates in water readily and produces sodium and thiosulfate ions.
What is sodium thiosulfate used for in pools?
Sodium thiosulfate for pools removes free chlorine as well as combined chlorine (chloramines) from pools. It’s an easy, safe, and inexpensive way to balance the chemical levels in your pool. There are no negative side effects of using sodium thiosulfate for pools, so you don’t have to worry.
Why is sodium thiosulphate called hypo?
sodium thiosulfate is known as a photographic fixer, and is often referred to as ‘hypo’, from the original chemical name, hyposulphite of soda.
What is the pH of sodium thiosulfate?
7.0 – 9.0
Sodium Thiosulfate 30% Solution (Na2S2O3), is a colorless chemical compound….Chemical Composition.
| Sodium Thiosulfate, wt% | 30 +/- 2% |
|---|---|
| Sulfite, wt% | 1.5 max. |
| pH | 7.0 – 9.0 |
Is sodium thiosulfate a reducing or oxidizing agent?
Is sodium thiosulfate an oxidizing agent? Thiosulfate ion (S2O3-2) is a moderately strong reducing agent used by an indirect procedure in which iodine is an intermediate agent to determine oxidizing agents. Starch irreversibly decomposes in solutions containing high levels of iodine.
What are the physical properties of sodium thiosulfate?
The physical and chemical properties of Na 2 S 2 O 3 are listed below. 1. Physical Properties In its anhydrous form, sodium thiosulfate has a molar mass of 158.11 grams per mole. The more commonly available pentahydrate from, Na 2 S 2 O 3 .5H 2 O has a molar mass of 248.18 g/mol. It has a white, crystalline appearance as a solid and is odourless.
What is the formula for sodium thiosulfate ( Na2S2O3 )?
The production of Na 2 S 2 O 3 can also be accomplished by the boiling of aqueous NaOH ( sodium hydroxide) with sulphur. 6NaOH + 4S ⟶ Na2S2O3 + 2Na2S + H2O. Industrially, sodium thiosulfate is prepared from the liquid waste generated from the manufacture of sulphur dye.
How does sodium thiosulfate dissociate in polar solvents?
The sodium thiosulfate salt is neutral in charge. However, it dissociates in water and some other polar solvents to yield Na + and S 2 O 32- Despite being stable at standard conditions, the sodium thiosulfate salt decomposes at high temperatures to yield sodium sulfate along with sodium polysulfide.
Are there any medical uses for sodium thiosulphate?
Sodium thiosulphate is not a toxic material and is used for medical purposes. However, when decomposed, it produces toxic vapors of sulfur oxide, which may cause irritation to eyes, skin and mucous membranes. The compound may irritate the eyes, skin and respiratory tract.