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Why is barium chloride and alcohol used in the limit test for sulphates?
barium chloride reacts with a sulphate to produce barium sulphate which can be seen as a white precipitate and therefor identified.
How do you test for the presence of barium ion?
A simple qualitative test is the flame test: barium has a pale/apple green color.
What is the difference between a barium meal and a barium swallow?
Both a barium swallow and a barium meal test involve you swallowing a liquid suspension of barium sulphate before a series of X-rays are taken of your upper digestive tract. In a barium swallow test, X-ray images are taken of your pharynx (throat) and your oesophagus (the passageway that connects your throat to your stomach; sometimes called your gullet). In a barium meal test, X-ray images are taken of your stomach and the beginning of your duodenum (the beginning of your small intestine, the passageway that takes food away from your stomach). A barium meal test is often performed straight after a barium swallow test. Barium is a naturally occurring element that appears white on X-ray. In these tests, the barium is given as a cup of flavoured drink - like a milkshake. When swallowed, barium coats the walls of the digestive tract, which allows the shape of your upper digestive tract to be outlined on an X-ray. Without the barium your upper digestive tract would be barely visible on X-ray.
What is the cost of a modified barium swallow study?
barium swallow test cost in Pakistan 5000 RS
Why is it that millon's test cannot be used to detect the presence of protein in the urine?
This test is never used for detection of tyrosine in urine, because urine contain chloride that chloride ions interfere with this test by combining with mercury chloride (HgCl2)
Why is barium chloride and alcohol used in the limit test for sulphates?
barium chloride reacts with a sulphate to produce barium sulphate which can be seen as a white precipitate and therefor identified.
Why can't sulfuric acid be used instead of hydrochloric acid in the barium chloride test?
Because barium sulfate is a precipitate; barium chloride is soluble in water.
How to tested Chloride and Sulfate limit test By USP monograph?
u can find the limit test for chloride& sulphate in a pharmaceutical chemistry by baccket or chatwal
Why is Barium Sulphate used in the limit test for sulphates?
Barium sulfate is very sparingly soluble. Any addition of it to a solution containing sulfate or barium will almost immediately cause a precipitate to form.
A test that can be used to determine whether a solution has potassium sulfate?
Potassium by flame-ionisation color test: redish purple Sulfate: by Barium chloride suspension test ( BaSO4)solid
In a flame test what color flame will barium chloride have?
Barium chloride, or any other barium salt, should burn with a green flame. When a barium salt is burned, the thermal energy is transferred to the outer electrons of the barium ions. They gain enough energy to excite them to a higher energy level. They then drop back to their ground state, releasing energy. This energy corresponds to a wavelength of light, which is emitted from the ion. This wavelength corresponds to green light, hence the green flame observed.
Why alcohol used in the limit test for sulphate?
Alcohol helps to prevent super saturation.
How do you test for the presence of barium ion?
A simple qualitative test is the flame test: barium has a pale/apple green color.
What is the chemical equation for the reaction between barium chloride and copper sulphate?
CuSO4(aq) + BaCl2(aq) = CuCl2(aq) + BaSO4(s) This is the classic test for sulphates. A white precipitate of barium sulphate forms.
What 0.16 result alcohol test mean?
If you are an adult in Massachusetts, it means you are 2x over the legal limit.
Why is the reaction between barium chloride and sodium sulphate also called presipitation reaction?
The classic test for sulphate is to add a barium salt ( BaCl2 or Ba(NO3)2), which are soluble. When the sulphate anions come into contact with the barium cations, they immeiately combine as a white solid and fall to the bottom of the reaction vessel. The chloride and/or nitrates anions remain in solution.
What test reagent will distinguish a solube Cl- salt from So4-2?
A solution of a soluble chloride will give a white precipitate (turning purple on exposure to light) with silver nitrate solution. Sulfates do not react. Alternatively, the solution of sulfate will give a white precipitate with barium chloride solution, and the chloride solution will not.
