(INTERNAL REPORT) CENTERPLASTICS COMPOUND & ADDITIVES Feb.2011 - M.S. Laura Fontana - Centerplastics Enterprise‚ Ltd Eastern Industrial Road‚ zip. 516127‚ Shiwan Town‚ Boluo Area‚ Huizhou‚ DongGuan‚ GuangDong‚ P.R.China PPH Chapter 1 - Introduction Approximately 25 potential devulcanization technology researchers and developers were identified throughout the world‚ however‚ only a very small number of devulcanization systems are now operating. These are primarily small-capacity systems
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bending was found around 750 cm-1. The bending fits in its range‚ which is generally between 1000 and 650 cm-1. The last few peaks that were inspected were found around 1600 cm-1. This signifies a carbon having a pi bond with another carbon in a benzene ring. Therefore‚ this rules out all the alkanes and just leaves the phenyl hydrocarbon
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stretching bands of CH2 are observed in the range from 2900 to 2700 cm-1 and this stretching band is mainly coupled with the CH3 stretching vibration. Mirtazapine has only one CH3 group. The C-H stretching vibrations of methyl are observed between 3000 and 2900 cm-1. A methyl group attached to a nitrogen atom gives rise to a band in the region 2800-2780 cm-1.These vibrations are observed at 2966 and 2856 cm-1. The C-C stretching modes of phenyl group are expected in the range of 1650-1200 cm-1
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QUALITY CONTROL LABORATORY Mam Dawn Assay of HCL Aqueous Alkalimetry Direct titration 0.1N NaOH Methyl Red TS HCL + NaOH NaCl + H2O Assay of Diluted H3PO4 Aqueous Alkalimetry Direct titration 0.1N NaOH Thymolphthalein TS H3PO4 + 2NaOH Na2HPO4 + 2H2O Assay of H3BO3 Aqueous Alkalimetry Direct titration 0.1N NaOH Phenolphthalein TS H3BO3 H+ + BO2- + H2O
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monohydrate / triketohydrindene hydrate) | Oxidative deamination and decarboxylation; reduction of ninhydrin | free α-amino and carboxyl groups | purple-blue color solution | Yellow solution | Xanthoproteic | Conc. HNO3‚ 50% NaOH | Nitration substitution in Benzene ring | aromatic amino acids | yellow precipitate then turns orange when neutralized with NaOH | clear solution‚ no change in color | Hopkins-Cole | Hopkins-Cole reagent | Condensation of indole group with glyoxylic acid and H2SO4 |
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Dissolve the solid in exactly 4 mL tert-butyl methyl ether of. Add exactly 2 mL of water‚ cap the tube and shake. Let the mixture stand until two layers are formed. Remove the aqueous layer. Wash the organic layer two more times with exactly 2 mL of water (each time). After the final wash‚ dry the
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DPOP and NPOP together evaluate the risk posed to humans by fire at landfills. DPOP measures the distance between the 297 landfill and the nearest building used by people for residential‚ occupational‚ educational‚ or recreational purposes. DPOP 298 score is calculated using Equation 30. For distance greater than 3057 m‚ DPOP = 0. If the distance is 0‚ then maximum 299 DPOP = 4.613. 300 DPOP = 4.613 x exp(-0.0005 x distance) (30) 301 3.8 Population within 3 km radius (NPOP) 302 NPOP‚ as per Equation
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GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key GRADE 11 CHEMISTRY (30S) Final Practice Examination Answer Key IInstructions The final examination will be weighted as follows Modules 1–3 Modules 4–6 The format of the examination will be as follows: Part A: Fill-in-the-Blanks Part B: Multiple Choice Part C: Short Answer Total Marks Include units with all answers as required. Useful Information You will need the following in order to complete this examination: n n n n 15–20% 80–85%
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(a synthetic analogue of morphine) and are primarily used as analgesics.[1] Discussion: Morphine has a 4-ring structure with a tertiary nitrogen (permits anchoring to opioid receptors) and 2 OH groups shown in Figure 1. When the benzene OH group is substituted for a methyl group‚ you obtain 3-methoxymorphine (codeine) shown in Figure 2.[2] Morphine’s route of administration
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Organic Chemistry - Introduction 1 2812 Basic definitions for organic chemistry Scope Organic chemistry is a vast subject so it is easier to split it into small sections for study. This is usually done by studying compounds which behave in a similar way because they have a particular atom‚ or group of atoms‚ (FUNCTIONAL GROUP) in their structure. Catenation The ability to form bonds between atoms of the same element. Carbon catenates to form chains and rings‚ with single‚ double
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