The hardness of water is measured in the units mg/L (milligrams per liter), ppm (parts per million), or mmol/L (millimoles per liter). The formula to calculate the hardness of water (in mg/L) can be written as: Hardness=2.497Cal+4.118MgHardness=2.497Cal+4.118Mg where Cal and Mg ...
1) Water hardness 水硬度1. A study of applying modified soybean hull in decreasing water hardness; 改性大豆皮用于降低水硬度的研究2. The relation between the property and type of dampening solution and dilute water hardness is introduced, property index (such as pH value, specific conductivity,...
water soluble salt of an alkyl or alkylaryl sulphonate having the formula: in which R is a linear or branched alkyl radical having 5-25 carbon atoms, X is a sulphonate radical, and Y+ is a monovalent cation, and a polyoxyalkylated alcohol or polyoxylated alkyl phenol having the formula:...
<20ppm Usage Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Coating Auxiliary Agents, Surfactants, Electronics Chemicals Color White Hydrogen Content, % 18~25 Hydrogen Content >1.55% Density 0.990~1.015 Volatility <2% Transport Package ...
In the metallic crystals, electrons are allowed to move freely and the delocalized electrons result in metallic bonding. Metallic crystals are found in both alloys and metals. Answer and Explanation:1 The correct option is a. Metallic crystals are...
It has better quality of mechanic feature, anticorrosion, dielectric and anti-chemicals PVC resin is the most widely raw material used in plastic production. It has good chemical stability corrosion resistance and water resistance. It can be dissolved in acetone , hydrochloric ether...
water soluble salt of an alkyl or alkylaryl sulphonate having the formula: in which R is a linear or branched alkyl radical having 5-25 carbon atoms, X is a sulphonate radical, and Y+ is a monovalent cation, and a polyoxyalkylated alcohol or polyoxylated alkyl phenol having the formula:...
water soluble salt of an alkyl or alkylaryl sulphonate having the formula: in which R is a linear or branched alkyl radical having 5-25 carbon atoms, X is a sulphonate radical, and Y+ is a monovalent cation, and a polyoxyalkylated alcohol or polyoxylated alkyl phenol having the formula:...
water soluble salt of an alkyl or alkylaryl sulphonate having the formula: in which R is a linear or branched alkyl radical having 5-25 carbon atoms, X is a sulphonate radical, and Y+ is a monovalent cation, and a water soluble salt of a sulphated oxyalkylated alkanol or of a ...
(r= 0.88) and resistant starch (r= 0.80) than those by the conventional program at 93 °C. We developed estimation formulae for H1(R) for various kinds of rice, of which the determination coefficient was 0.86. It led to an easy and rapid assay method for the cooking properties of the...