The resulting pulps were bleached by alkaline peroxide bleaching. The FA could delignify jute fiber alone, while AA could not delignify without an HCl catalyst. Peroxyformic acid was able to more selectively delignify jute fiber and showed good bleachability in two-stage alkaline peroxide ...
Tested conditions are as follows: Alkaline & acid: alkaline solution (K9pH7) and acidic solution (K9pH4); Amino acid supplement: mid-logarithmic phase in free sulfur source (K9NaSO4ML), early stationary phase in free sulfur source (K9NaSO4ES), mid-logarithmic phase in amino acid sulfur ...
Oxidized melanin loses its color, making the hair look lighter. Bleaching significantly damages your hair. Whether you should rebleach your bleached hair depends on the health of your hair before and after bleaching. They say, “Life is too short for boring hair.” In today’s era of social...
An element; the heaviest of the stable alkaline earths. Barium sulfate is used as a diagnostic aid in radiology due to its radio-opaqueness and, because of its insolubility and lack of absorption, it is safe barring iatrogenic episodes. Poisoning usually results from deliberate or accidental inge...
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Caustic drain cleaner is sodium hypochloride, an alkaline substance made from the mixing of chlorine, sodium hydroxide (sometimes called caustic soda), and water. Surfactants are added into the caustic drain cleaners. Surfactants, or surface-active agents, may be added to reduce surface tension, ...
Are bleaches oxidizing agents? Is chlorine an oxidizing or reducing agent? What is an oxidation state? What do redox reactions do? Which of the following species CANNOT function as an oxidizing agent? A. Cr_2O_7^{2-} B. MnO_4^- C. NO_3^- D. S E. I^- ...
Which of the following correctly describes a buffer? a. A buffer converts an acid solution to neutral. b. A buffer converts an alkaline solution to neutral. c. A buffer converts alkaline solutions to acid solutions. d. A buffer converts strong bases or ac ...
This stabilizer is suitable for use in stabilizing alkaline bleaching solution containing oxygen, hydrogen peroxide and/or compounds capable of providing peroxide ions and can be used, under oxygen pressure, under ambient pressure or under hydrostatic pressure, to bleach aqueous fibre suspensions in the...
scale ranges from zero to 14, where zero is the most acidic and 14 is the least. Pure water has a pH of seven, so seven is considered to be a neutral pH. Values from zero to six are considered acidic, whereas pH values from eight to 14 are considered to be basic, or alkaline. ...