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    Hansa Yellow G

    PY1

    Alternate Names

    Arylide Yellow G

    Hansa Yellow Medium

    Pigment Description

    This has only moderate lightfastness, and sometimes the lightfastness can be very poor. Additionally it may release carcinogens, as well as cause methemoglobinemia, see Monona Rossol's work here for more information. Handprint recommends PY154 instead. The "G" stands for green, by contrast Hansa Yellow 10G is more of a greenish yellow.

    Resources

    PY1 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com

    Information about PY1 from Bruce MacEvoy, Handprint Guide to Watercolors,

    Rossol, Monona. The Artist's Complete Health and Safety Guide. New York, NY : Allworth Press, 2001. The book is rather dated, updated information is available from her website.

    Stats

    Lightfastness

    Varies, may be Poor

    Older test results may be less relevant due to changes in pigment manufacture, however in the 1980s the NPIRI reported tests that showed slight fading in masstone and appreciable fading in tints during outdoor Florida lightfastness tests. Lightfastness can range from Very Good to Fair to Very Poor depending on the medium.

    Transparency

    Varies, Semi-Transparent

    Toxicity

    Previously thought to be in the category of Low Concern, new research suggests this may release carcinogens and also cause methemoglobinemia.

    While noting “low acute toxicity,” Monona Rossol’s work notes that it may release potential carcinogens (2-nitro-p-toluidine and aniline), and also could cause methemoglobinemia. Refer to her reserach for more information.

    Tinting

    Good

    Dry Time

    Very Slow to Slow

    Oil Content

    Medium

    Medium by volume, but when made into a paint sometimes it is medium-high.

    Particle Size

    Very Fine

    Chemical Name

    monoazo, acetocetyl

    with PY1 (Hansa Yellow G)
    No single-pigment Oil found with PY1

    DISCLAIMER: Please note that we are not experts in health and safety and we are not toxicologists, please consult the proper experts. We are not liable for any issues that may arise from the use of our website or its contents. The information contained in this site is provided without warranty or guarantee of any kind. We do not necessarily endorse any other website that are linked from our site. For any important pigment specs, please reference the manufacturer details. If you discover errors or omissions, please reach out through our contact form. Thank you.

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