Chemical Engineering @ChemengFiles.Com

The object of this research was to study quantitatively possibilities of a continuous process of production of perchloric acid from nitrogen peroxide and ammonium perchlorate. Perchloric acid has many properties which make it an important acid in industrial and analytical work and its use would be much greater if its cost of production could be lowered. It is a strong monobasic acid, stable in solutions (up to 60%), has a high boiling point. There are relatively few insoluble salts (potassium, rubidium, caesium, and thallium perchlorates are only highly soluble) and the difference in solubilities of potassium and sodium perchlorates give an easy method of separation of these two metals in analytical work.

LyondellBasell Industries has released the following statement: "After numerous requests for information received by asking whether the operations of LyondellBasell outside the United States are affected by the application for restructuring under the protection of Chapter 11, we would like to emphasize that none of our operations outside the United
States is affected.

No company or subsidiary of LyondellBasell outside the United States has requested or has been involved in insolvency or bankruptcy proceedings in their respective countries.

Roche Molecular Diagnostics has announced that it has received the certificate of CE mark for its new test COBAS (R) AmpliPrep / COBAS (R) TaqMan (R) HBV v2.0, allowing their sale for clinical use within of the European Union. This test is highly sensitive to Roche PCR technology offers automated real-time to achieve wide dynamic range within
delADN delvirus the quantitative detection of hepatitis B (HBV) in serum and plasma of patients.

"It is vital to control the levels of hepatitis B as an indicator of when therapy should begin the hepatitis B virus, and determining the response to treatment," said Teresa Wright, a doctor of medicine and head of Roche Molecular Diagnostics. "This test enables physicians to optimize treatment for patients with the assessments of viral load, allowing laboratories testing efficiency through enhanced automation.