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  2. Water-reactive substances - Wikipedia

    en.wikipedia.org/wiki/Water-reactive_substances

    Water-reactive substances [1] are those that spontaneously undergo a chemical reaction with water, often noted as generating flammable gas. [2] Some are highly reducing in nature. [ 3 ] Notable examples include alkali metals , lithium through caesium , and alkaline earth metals , magnesium through barium .

  3. Combustibility and flammability - Wikipedia

    en.wikipedia.org/wiki/Combustibility_and...

    The burning of a solid material may appear to lose weight if the mass of combustion gases (such as carbon dioxide and water vapor) are not taken into account. The original mass of flammable material and the mass of the oxygen consumed (typically from the surrounding air) equals the mass of the flame products (ash, water, carbon dioxide, and ...

  4. Cuprammonium rayon - Wikipedia

    en.wikipedia.org/wiki/Cuprammonium_rayon

    Cuprammonium rayon is a rayon fiber made from cellulose dissolved in a cuprammonium solution, [1] Schweizer's reagent. [ 2 ] It is produced by making cellulose a soluble compound by combining it with copper and ammonia with caustic soda .

  5. Rayon - Wikipedia

    en.wikipedia.org/wiki/Rayon

    Rayon, also called viscose [1] and commercialised in some countries as sabra silk or cactus silk, [2] is a semi-synthetic fiber [3] made from natural sources of regenerated cellulose, such as wood and related agricultural products. [4]

  6. Original - The rock cycle is a fundamental concept in geology that describes the dynamic transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Due to the driving forces of the rock cycle, plate tectonics and the water cycle , rocks do not remain in equilibrium and are forced to change as they ...

  7. Flame retardant - Wikipedia

    en.wikipedia.org/wiki/Flame_retardant

    High concentration can be found in meat, dairy and fish [73] with the remaining exposure largely due to dust inhalation or ingestion. [71] [72] Individuals can also be exposed through electronic and electrical devices. [74] Young children in the United States tend to carry higher levels of flame retardants per unit body weight than do adults.

  8. File:Diagram of the water cycle including some human activity ...

    en.wikipedia.org/wiki/File:Diagram_of_the_water...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  9. Dissolving pulp - Wikipedia

    en.wikipedia.org/wiki/Dissolving_pulp

    The lyocell process uses an amine oxide to dissolve cellulose and Tencel is the only commercial example of this direct-dissolution process, which unlike the viscose process is pollution-free. The 90-92% cellulose content sulfite pulps are used mostly to make textiles (like rayon ) and cellophane .