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SOLVENT GREEN 1

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SOLVENT GREEN 1 Basic information
SOLVENT GREEN 1 Chemical Properties
Safety Information
  • Hazard Codes Xn
  • Risk Statements 22
  • WGK Germany 3
  • RTECS DN8600000
MSDS
SOLVENT GREEN 1 Usage And Synthesis
  • Purification MethodsThe oxalate [Beilstein 8 H 326, 13 IV 2279.] is recrystallised from hot water and dried in air. The carbinol is precipitated from the oxalate (1g) in distilled water (100mL) by adding M NaOH (10mL). The precipitate is filtered off, recrystallised from 95% EtOH containing a little dissolved KOH, then washed with ether, and crystallised from pet ether. Dry it in a vacuum at 40o. An acid, almost colourless, solution (2 x 10-5M in 6 x 10-5M H2SO4) rapidly reverts to the coloured dye. [Swain & Hedberg J Am Chem Soc 72 3373 1950, Beilstein 13 H 243, 744.]
  • Properties and Applications

    TEST ITEMS

    SPECIFICATION

    APPEARANCE

    Malachite Green Powder

    SHADE

    Bluish

    HEAT RESISTANCE

    140 °C min

    LIGHT FASTNESS

    4

    ACID RESISTANCE

    4

    ALKALI RESISTANCE

    4

    WATER RESISTANCE

    5

    DENSITY

    1.10g/cm 3

    RESIDUE ON 80 MESH

    5.0% max

    WATER SOLUBLE

    1.0% max

    VOLATITE 105 °C

    1.0% max

    TINTING STRENGTH

    100-105 %

    WEIGHT METAL TOTAL

    50ppm max

SOLVENT GREEN 1(510-13-4)Related Product Information
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