CHARACTERISTICS AND APPLICATIONS OF SOLUBLE GLASS Soluble glass‚ also called foam alkali‚ is an alkali metal air hardening material. In construction‚ it is usually used to prepare sodium silicate cement‚ soluble glass mortar‚ and soluble glass concrete. Soluble glass is widely used in the anti-acid and heat-resistant engineering. The main method to produce soluble glass is to grind and stir calcined soda and quartz sand which are the major raw materials‚ then fuse them in the melting pot of 130O-140OnC
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Objective To determine soluble solid concentration in some fruits including tropical and temperate fruits by using handheld refractometer. Introduction “Sugar are the major soluble in fruits juices and estimate of sweetness. Other soluble materials include organic and amino acids‚ soluble pectins‚ and others. Soluble solid concentration can be determined in a small sample of fruits juice using a hand held refractometer. The measurement must be made at 20°C to get an accurate value. This instrument
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molecular level – Tutoring for biology Saturated fat vs. unsaturated fat Saturated fat has a lot of single carbon bonds. This makes them much straighter in shape and therefore easier to stack together. It’s called “saturated” fat because the molecule has the maximum amount of hydrogen atoms attached to it as possible. Unsaturated fat has double carbon bonds. Each double carbon bond means two less hydrogen atoms on the molecule. Unsaturated fat also is kinked at each double bond‚ disrupting the
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What is propaganda? Propaganda is a form of communication that is aimed towards influencing the attitude of a community toward some cause or position by presenting only one side of an argument. Propaganda is usually repeated and dispersed over a wide variety of media in order to create the chosen result in audience attitudes. Nazi Propaganda: Propaganda‚ the coordinated attempt to influence public opinion through the use of media‚ was skillfully used by the NSDAP in the years leading up to and
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radiations: * Ecological opportunities- Meaning the availability of new or novel types of resources- have driven a wide array of adaptive radiation. * Morphological innovation- One that allowed descendants to live in new areas‚ exploit new sources of food‚ or move in new ways- triggered many of the important diversification events in the history of life. Mass extinction- Refers to the rapid extinction of a large number of lineages scattered throughout the tree of life. It occurs when at least
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diagram of the inner workings of the instrument can be seen in figure one below. First‚ a sample is injected into the injection loop with the use of a syringe. After the injection is complete‚ the lever of the injection loop is pulled down to create a high pressure pump that pushes the sample into the mobile phase of the instrument. This mobile phase‚ which for this experiment will consist of water and methanol‚ transports the samples toward the packed column where it will leave the mobile phase and
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Tittle : Rancidity Measurement in Fats and Oils. Introduction : Vegetable oil is an important and widely used lipid source for our everyday food products. Its application is increasing day by day for food purposes and for the manufacturing of a number of toiletry products. However‚ some vegetable oils are not up to standards to meet consumer satisfaction in terms of their physico-chemical properties or for the texture and stability of the food products (Reyes- Hernandez et al.‚ 2007). Recently
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Activity 2.2.2: Anna Garcia – Nutrient Analysis Food Groups Target Average Eaten Status Grains 6 ounce(s) 9 ounce(s) Over Whole Grains ≥ 3 ounce(s) 1 ounce(s) Under Refined Grains ≤ 3 ounce(s) 8 ounce(s) Over Vegetables 2½ cup(s) 2¾ cup(s) OK Dark Green 1½ cup(s)/week 0 cup(s) Under Red & Orange 5½ cup(s)/week 1½ cup(s) Under Beans & Peas 1½ cup(s)/week 0 cup(s) Under Starchy 5 cup(s)/week ½ cup(s) Under Other 4 cup(s)/week ¾ cup(s) Under Fruits 1½ cup(s) ½ cup(s)
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What is hairspray made of? Hairspray is a solution of long‚ chainlike molecules (called polymers) in a very volatile solvent. Spraying deposits a stiff layer of the polymer on your hair after the solvent evaporates. The solvent used was once a compound of carbon‚ fluorine‚ and chlorine (a chlorofluorocarbon‚ or CFC). CFCs are nontoxic‚ nonflammable‚ and make almost ideal aerosol propellants. But when it was learned that they causedestruction of stratospheric ozone‚ they were replaced with other
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Hyperthermophiles‚ a name which breaks down to mean “superheat-loving” (Stetter‚ 2006)‚ are one of the earliest types of extremophiles. These extremophiles are characterized by their thriving in high temperature environments‚ with an optimal growth zone of 80 to 106 degrees Celsius (Stetter‚ 2006). Pyrolobus fumarii‚ a specifies of hyperthermophiles‚ has been recorded to grow at 113 degrees Celsius‚ the highest recorded growth temperature (Stetter 1999). Hyperthermophiles do no grow at 50 degrees
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