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The toxicity of ammonia is dependent on both pH and temperature and an added complexity is the buffering effect of the blood/water interface across the gill membrane which masks any additional toxicity over about pH 8.0. The management of river chemistry to avoid ecological damage is particularly difficult in the case of ammonia as a wide range ...
The combination of urea and ammonium nitrate has an extremely low critical relative humidity (18% at 30 °C) and can therefore only be used in liquid fertilizers. The most commonly used grade of these fertilizer solutions is UAN 32.0.0 (32%N) known as UN32 or UN-32, which consists of 45% ammonium nitrate , 35% urea and only 20% water.
A common nitrate test, known as the brown ring test [2] can be performed by adding iron(II) sulfate to a solution of a nitrate, then slowly adding concentrated sulfuric acid such that the acid forms a layer below the aqueous solution. A brown ring will form at the junction of the two layers, indicating the presence of the nitrate ion. [3]
Both the 42-US-gallon (159 L) barrels (based on the old English wine measure), the tierce (159 litres) and the 40-US-gallon (150 L) whiskey barrels were used. Also, 45-US-gallon (170 L) barrels were in common use. The 40 gallon whiskey barrel was the most common size used by early oil producers, since they were readily available at the time.
Stack Tank Oil (STO) density (or API) may also be used by regulatory bodies to classify oil and oil products. Other properties such as Molecular Weight , saturated aromatic resin and asphaltene (SARA), refractive index , wax appearance temperature, asphaltene precipitation, and acid number , are also specified at Stock Tank conditions. [ 1 ]
Intermediate bulk containers (also known as IBC, IBC tote, or pallet tank) are industrial-grade containers engineered for the mass handling, transport, and storage of liquids, partial solids, pastes, granular solids [1] or other fluids. There are several types of IBCs with the two main categories being flexible IBCs and rigid IBCs. [2]
Uranyl nitrate is a water-soluble yellow uranium salt with the formula UO 2 (NO 3) 2 · n H 2 O. The hexa-, tri-, and dihydrates are known. [ 3 ] The compound is mainly of interest because it is an intermediate in the preparation of nuclear fuels.
Lead nitrate is an oxidizer and has been used as such in pyrotechnics. [9] It is soluble in water and dilute nitric acid. Basic nitrates are formed when alkali is added to a solution. Pb 2 (OH) 2 (NO 3) 2 is the predominant species formed at low pH. At higher pH Pb 6 (OH) 5 NO 3 is formed. [17]