What do you use sodium thiosulfate for?
What do you use sodium thiosulfate for?
Sodium thiosulfate, also spelled sodium thiosulphate, is used as a medication to treat cyanide poisoning, pityriasis versicolor, and to decrease side effects from cisplatin. For cyanide poisoning it is often used after the medication sodium nitrite and typically only recommended for severe cases.
What is the common name of sodium thiosulphate?
hypo
Why is sodium thiosulphate not a primary standard?
Sodium hydroxide cannot be used as a primary standard because of its hygroscopic properties as a solid. Because it is so prone to absorbing water, it is impossible to accurately measure the mass of a solid sample, so instead it must be put into solution and titrated with a known acidic solution.
Why is excess Ki added?
Excess KI is added to help solubilise the free iodine, which is quite insoluble in pure water under normal conditions. The preferred water for this method should be boiled distilled water, which requires provision of a distillation unit.
How do you make N 40 sodium thiosulphate?
PREPARATION
- Measure 0.6g of hydrated sodium thiosulfate using electric balance and add it in to a 100ml volumetric flask.
- Add some distilled water, about 30ml or so.
- Shake well for the sodium thiosulfate to dissolve.
- Add more water and shake.
How do you prepare 0.005 N sodium thiosulphate?
0.005 N-Sodium Thiosulfate Solution5: Dissolve 1.24 g Na2S2O3. 5H2O (FW= 248) in one liter of distilled water and store in a cool dry place. Solution is stable for 1 month. This amount is sufficient for about 200 samples.
Why does sodium thiosulphate and dilute hydrochloric acid go cloudy?
1 Sodium thiosulfate solution and dilute hydrochloric acid react together slowly to form a precipitate of sulfur. This precipitate eventually makes the mixture go cloudy.
Is the reaction of sodium thiosulfate and hydrochloric acid a first or second order reaction?
The rate is directly proportional to concentration, and the reaction appears to be first order with respect to sodium thiosulfate concentration.
Why rate of reaction is fastest?
The frequency of collisions: The more often molecules collide with each other, the faster the reaction proceeds. The energy of collisions: The more forcefully molecules collide with each other, the more likely they are to react, and the faster the reaction proceeds.
What is the balanced equation for sodium thiosulphate and hydrochloric acid?
S2O32- + 2H+ ® H2O + SO2 + S This property is used in the experiment to determine the rate of the reaction.
What is the product of sodium thiosulfate and hydrochloric acid?
Reaction between Sodium thiosulphate and Hydrochloric Acid Sodium thiosulphate reacts with dilute acid to produce sulphur dioxide, sulphur and water.
What is the concentration of the original sodium thiosulfate solution?
This solution is used for standardization of sodium thiosulfate solution. Exactly 0.0883 g of KIO3 (analytical reagent) was dissolved in water to make 100.00 mL solution. Given the molar mass of KIO3 to be 214.0 g/mol, the concentration of this solution is exactly 4.13 x 10-3 molar.