This blackhead buster deep cleanses pores, drives impurities (collection of dead cells, excess oils, grime, pollution and germs) out and its coarse texture is useful in scrubbing the impurities off the skin's surface. Following these simple instructions, whip up an amazing mask that works wonder in unplugging
Select a procedure to b used 5. Proceed step by step to remove the stain IDENTIFICATION OF STAINS 4 removal of known stains the 1st step is to identify the stain. Stains may b identified based on their colour texture or odour. A. COLOUR the colour of the stain gives a strong clue as to what the stain is for eg . A red stain may be due to ink tomato lipstick nail paint blood or some medicine B. TEXTURE By touching the surface of the stain a clue may b obtained eg.
Research Question: What is the size of the bacteria, after washing your hands with different types of soap? (E.g. antibacterial and perfume soap) Hypothesis: In this experiment, I will touch one certain object and then use 2 or 3 different types of soaps and test the bacteria growth of each one. I believe that the one without being washed will generate the largest size of bacteria; while the antibacterial soap will have the smallest. Since the main purpose of antibacterial sap is to kill off bacteria; the perfume soap which those clean hands but also leaves a nice scent will have a moderate amount, in between the amount the unwashed section and the antibacterial soap will generate.
To regulate the reaction, phenolphthalein, an acid-base indicator, was added beforehand to the vinegar (analyte). The indicator will change its color, signaling that the end point is obtained and the volume of NaOH used can now be measured. The experiment was carried out in three trials. Trial 1 showed a 0.0115 L of NaOH while a 0.012 L in trial 2 and 0.011 L for the last trial. With the molarity and the volume of NaOH, and the volume of the vinegar sample, being known, it would be possible to calculate the molar concentration of acetic acid in the vinegar sample.
Extraction of juglone, natural brown pigment, from walnut green husk (Juglans regia L.) by microwave and ultrasonic methods for hair dyeing application Abstract: The present study was conducted to investigate the extraction of juglone from walnut green husk, the dyeing and fastness properties of dyed hair using husk extract as a natural dye and also, skin irritation test of this natural hair dye was examined on rat skin. Walnut green husk is one of the major waste products from the walnut production that could be valued as a source of natural compounds such as juglone. For more efficient and economical extraction of juglone from walnut green husk, microwave-assisted extraction was selected. the influence of some parameters (types of solvents,
The developing chamber for the TLC plates was prepared by adding ethyl acetate that contained 0.5% acetic acid to the glass jar. The TLC plates were prepared by drawing a horizontal line from bottom margin (0.5cm) where the four spots were placed. Separate small capillary tubes were used to spot solutions of Tylenol, Anacin, acetaminophen and acetylsalicylic acid respectively on the drawn line. The spotted TLC plate was placed in the developing chamber (glass jar) ensuring the solution in the glass jar is below the drawn line, followed by covering the top of the glass jar(Qui, Haixing, and Yusheng
Tubes containing Vancomycin against S. epidermidis showed growth only in tubes 7, 8, and 9 after incubation period. Whereas tubes 1 through 6 for concentration between 100 ug/ml to 3.12 ug/ml were observed with no bacterial growth (clear). The minimum concentration at which the growth is inhibited in visual observation was recorded as MIC. This MIC for Vancomycin was 3.12 ug/ml in this experiment. To further examine whether or not the Vancomycin is bactericidal for S. epidermidis and at what concentration, the media plates prepared from the clear tubes in MIC determining step were examined.
CHEMICALS REQUIRED • Iodine solution • Potassium iodine • Sodium hydroxide • Fehling’s A & B solution • Concentrated HNO3 • Benedict solution • Ammonium molybdate Figure 1 – soft drinks of three different brands Physical analysis APPARATUS USED Test tubes PH paper DETECTION OF PH 1-2 drops of the sample of cold drink of each brand was taken and was tested by pH paper. The change in the color of pH paper was noticed and was compared with the standard pH scale. COLOR DETECTION Color detection is done by manually. Through naked eyes. ODOUR DETECTION It is detected by smelling or the smell or here we can say the gas evolved after opening the cane or bottle.
Printers can print the plastic of choice for the model, but erect supports and binders from HIPS, a polystyrene plastic that is easily soluble in limonene. As it is combustible, limonene has also been considered as a biofuel. In preparing tissues for histology or histopathology, d-limonene is often used as a less toxic substitute for xylene when clearing dehydrated specimens. Clearing agents are liquids miscible with alcohols (such as ethanol or isopropanol) and with melted paraffin wax, in which specimens are embedded to facilitate cutting of thin sections for microscopy. In traditional medicine, d-limonene is marketed to relieve gastroesophageal reflux disease and heartburn.
Formaldehyde is a colorless, flammable gas utilized as a part of beauty care products. It’s most commonly used as a water solution called formalin, rather than in its pure form. With the assistance of preservatives, formaldehyde is released in small amounts over time to ensure cosmetic products against contamination by bacteria during storage and during continued use. Common formaldehyde releasers include quaternium-15 and DMDM hydantoin.Formaldehyde can be found in nail polishes, nail hardeners, eyelash glues, hair gels, soaps, makeup, shampoos, lotions, and deodorants, among other products. An article published in the April 2010 volume of Contact Dermatitis looking at products from the FDA’s Voluntary Cosmetic Registration Program database found that nearly 20 percent of products contained formaldehyde or formaldehyde-releasing preservatives.The two known categories of products with the most formaldehyde are hair straightening treatments and nail hardeners.