FOR the analysis of the nitrate content of sea water, and for certain tests on alkaloids, it is necessary to have sulphuric acid free from all but the most minute amounts of nitric acid.

Three bottles of sulfuric acid, acetone and a "white substance labeled potassium nitrate" can be seen in one of the documents, which also mention a "burner with white residue," a thermometer ...

School of Physics & Astronomy, Cardiff University, 4 The Parade, Cardiff CF24 3AA, U.K. Rufus Scientific, Melbourn, Herts SG8 6ED, U.K. Nanoplanet Consulting, Concord, Massachusetts 01742, United ...

[SMM Analysis: December Sulphuric Acid Exports Hit a New High for the Year, What Are the Reasons?] According to data from the General Administration of Customs, China exported a total of 519,700 mt of ...

concentrated sulphuric acid 60 parts, and carded cotton 2 parts. The nitrate and the acid are mixed together in a porcelain vessel, the cotton added, and stirred in it with a glass rod for about ...

Malic acid benefits can include acne treatment, and skin care such as exfoliation and hydration. It is an alpha hydroxy acid, found naturally in fruits and wines and used as an ingredient in ...

Knowing foods that cause acid reflux can help you prevent and manage this condition. Common triggers include carbonated drinks, spicy foods, chocolate, and tomatoes. Acid reflux, also known as ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. No more standing water. A clogged drain can be easily ...

The polysaccharide content in the eluates was monitored at 630 nm using the anthrone-sulfuric acid method, and the elution profile was plotted with tube number on the x-axis and absorbance on the ...

Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan ...

Jabbar had left behind, including supplies that could be used for an explosive device: acetone, bottles of sulfuric acid and bags labeled as potassium nitrate. At the three-bedroom home in ...