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  2. Crack cocaine - Wikipedia

    en.wikipedia.org/wiki/Crack_cocaine

    The spoon is held over the heat source to "cook" the cocaine into crack. Sodium bicarbonate (NaHCO 3, common baking soda) is a base used in the preparation of crack, although other weak bases may substitute for it. [7] [8] The net reaction when using sodium bicarbonate is Coc-H + Cl − + NaHCO 3 → Coc + H 2 O + CO 2 + NaCl. With ammonium ...

  3. Free base - Wikipedia

    en.wikipedia.org/wiki/Free_base

    Trituration of the free base from cocaine hydrochloride (or "cooking") is done by dissolving the cocaine hydrochloride in water over constant heat, while simultaneously adding a base (such as baking soda) to form the free base cocaine. The free base of cocaine forms a solid "rock", pieces of which can be smoked directly (crack cocaine). [4]

  4. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    Freeware PDF reader, tagger, editor (simple editions) and converter (free for non-commercial uses). Allows edit of text, draw lines, highlighting of Text, measuring distance. Solid PDF Tools: Proprietary: Convert PDFs into editable documents and create PDFs from a variety of file sources.

  5. Sodium bicarbonate - Wikipedia

    en.wikipedia.org/wiki/Sodium_bicarbonate

    Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate [9]), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO 3. It is a salt composed of a sodium cation (Na +) and a bicarbonate anion (HCO 3 −). Sodium bicarbonate is a white solid that is crystalline but often appears as a

  6. Solvay process - Wikipedia

    en.wikipedia.org/wiki/Solvay_process

    The Solvay process or ammonia–soda process is the major industrial process for the production of sodium carbonate (soda ash, Na 2 CO 3).The ammonia–soda process was developed into its modern form by the Belgian chemist Ernest Solvay during the 1860s. [1]

  7. Caustic embrittlement - Wikipedia

    en.wikipedia.org/wiki/Caustic_embrittlement

    This can be prevented by using sodium phosphate (Na 3 PO 4) instead of sodium carbonate as softening reagents.What happens is that its molecules will get inside the hair-line crack and block it, as a result of which sodium hydroxide, even if it is there, will not be able to come in contact with iron, and no reaction will be there.

  8. Citrate test - Wikipedia

    en.wikipedia.org/wiki/Citrate_Test

    Production of sodium bicarbonate (NaHCO 3) as well as ammonia (NH 3) from the use of sodium citrate and ammonium salts results in alkaline pH. This results in a change of the medium's color from green (neutral) to blue (alkaline).

  9. Bicarbonate indicator - Wikipedia

    en.wikipedia.org/wiki/Bicarbonate_indicator

    Solution B: 0.8 g of sodium bicarbonate, 7.48 g of potassium chloride and 90 mL of water; Mix Solution A and B and mix 9 mL of the mixed solution to 1000 mL of distilled water. This method to determinate the concentration of bicarbonates and carbonates is also called "Magni's method."