PDF-SODIUM HYDROXIDE

JECFA 2002 An ADI not limited was established at the 9th JECFA 1965 SYNONYMS Caustic soda lye sodium hydrate INS No 524 DEFINITION Chemical names Sodium hydroxide CAS number 13107. 6 mg of CO 2 The conversion is as follows Carbonate Alkalinity as CO 2 mgL 06 Carbonate Alkalinity as CaCO mgL Converting Bicarbonate Alkalinity from mgL as CaCO to mgL as HCO Consider the following reaction CaCO H O CO CaHCO CaCO has a molecular HAIR. RELAXERS. CHEMICAL HAIR RELAXERS. Chemical hair relaxing is the process of rearranging the basic structure of extremely curly hair into a straight or less curly form.. The chemical process is very similar although the results are opposite from permanent waving hair.. Done by : . Samyah. . Alanazi. Cls. 231. Lecture outline. What is standardisation. . ?. Types. of standard solutions.. E. experiment objective .. Types of titration methods.. . Procedure . Calculation . H. ydroxide Safety. Rami E. . Kremesti. M.Sc.. Properties. Caustic. Corrosive to skin (saponifies the fat in ur skin). Decreases pH. Exothermic dissolution in water. Reacts violently with Acids. Hygroscopic. Lemon juice. Hydrochloric acid . Soap. Sodium hydroxide . Water. pH 14. pH 0. . pH 3. pH 7. . pH 9. Match up the substance with the pH. Lemon juice. Hydrochloric acid . Soap. Sodium hydroxide . Water. They tell us how much of each substance is involved in a chemical reaction. 2H. 2. + O. 2. .  2H. 2. O. 2 moles of hydrogen react with 1 mole of oxygen to make 2 moles of water. This is useful because now we can use it to work out what mass of hydrogen and oxygen we need and how much water is made. 3. understand that alkalis neutralise acids to make salts. 4. recall that soluble hydroxides and carbonates are . alkalis (Higher). 5. predict the products of the reactions of soluble hydroxides and carbonates with . Day 3. Naming Acids. Acids usually have H as the cation. . H. Cl. Acids are named depending on whether they are oxyacids (ternary acids) or non-oxyacids (binary acids). Copy the table below and explain the following clues that can be found in rocks.. . Clues. What the clue tells us?. Magnetic particles in rocks.. Fossils in the rocks.. Ripples in the rocks.. Minerals in the rocks. Ammonium Hydroxide and Orange Juice Synergistic Effects on Escherichia coli John Lynch Pittsburgh Central Catholic High School Grade 9 pH pH Scale Measures how acidic or basic a substance is Scale from 0-14 Vaccine Excipient SummaryExcipients Included in US Vaccines by VaccineIn addition to weakened or killed disease antigens such as weakened killed or parts of viruses or bacteria vaccines contain very s Sodium hydroxide are always coated with thin layer of sodium carbonate as a result of reaction of hydroxide with atmospheric carbon dioxide (CO. 2. ).. Pure sodium . hydroxide cannot be obtained; so that a standard solution of NaOH cannot be prepared by dissolving a known weight in a definite volume of water. Therefore . For preservation of samples intended for histopathology (1 part tissue to 10 parts 10% buffered formalin) Make up 1L of buffered formalin. Final concentration: 10% formal in (corresponding to 3.8 - 4 Define . and classify gastrointestinal agents with examples.. GIT . agents- . These agents are used in the treatment of GIT disorders such as . achlorhydria. , hyperacidity. , diarrhoea & constipation.