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food coloring made from coal tar?

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General fitness, health and nutrition
Published
4 April 2004
Last activity
8 April 2004
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Ziliath
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  1. Hi all,

    I'm always in search of the actual facts, not to be confused
    with what the media tells me, and I recently read in a
    handout from a health food store the following two
    interesting claims:

    A. 6 out of 7 major food colors used in the USA are banned
    outside of the USA

    B. most food coloring used in the USA is made from coal tar

    I would like to get any info that confirms or denies
    these claims.

    Any help appreciated!

  2. ziliath said:

    A. 6 out of 7 major food colors used in the USA are banned
    outside of the USA

    Banned where? By whom? All synthetic food colors in the U.S.
    have to pass very strict regulations, including for example
    not causing cancer in animals in any amount. Even the
    weakest carcinogen cannot be a food additive in the U.S.
    Currently, there is some controversy over FD&C Yellow #5,
    because it causes hives in less than 1 out of 10,000 people.
    It may be banned someday, especially if a replacement
    becomes available. However, so far the FDA deems it an
    acceptable risk.

    Quoted message said:

    B. most food coloring used in the USA is made from
    coal tar

    There is a class of chemicals known as the "coal tar dyes"
    no matter what material they are made from. They got this
    name because back in the mid-19th century, they were
    developed by the German chemical industry from coal tar
    which was produced as a by-product of the cooking of coal to
    make synthetic gas used for heating and light and coke (pure
    carbon) used for refining steel. The name stuck, even though
    most of these chemicals are made from petroleum these days.
    The major raw coal-tar feedstocks were benzene, napthalene,
    and anthracene, which are the one-ring, two-ring, and three-
    ring hydrocarbons. You could call any derivatives of these
    structures "coal tar derivatives", even if they were made
    from some completely different material. That encompasses
    almost all of the interesting synthetic organic chemicals.

    Certain coal-tar dyes like the rhodamines are slightly
    carcinogenic, but they were banned over 50 years ago. None
    of the currently allowed food colors have any demonstrated
    cancer-causing ability, even at high doses in the most
    sensitive animals.

    Note that the main hazard from food colors is not in the
    U.S., but outside. For example, rhodamine continues to be
    used as a food color in Vietnam and mainland China.
    Frequently, FDA seizes imported food products containing
    these banned colors.

    Quoted message said:

    I would like to get any info that confirms or denies
    these claims.

    The current regulatory status of all U.S. food colors is
    disclosed here:

    fda.govappA12.ht
    ml

    Note that FD&C means "Food, Drug, and Cosmetic", which are
    dyes approved for food drug and cosmetic use. D&C means a
    dye is approved for drug and cosmetic but not food use. A
    lake is a pigment made by applying a dye to an insoluble
    white powder like alumina or kaolin to increase the coloring
    power of the dye.

  3. "Mark Thorson" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    ziliath said:

    A. 6 out of 7 major food colors used in the USA are
    banned outside of the USA

    Banned where? By whom? All synthetic food colors in the
    U.S. have to pass very strict regulations, including for
    example not causing cancer in animals in any amount. Even
    the weakest carcinogen cannot be a food additive in the
    U.S. Currently, there is some controversy over FD&C Yellow
    #5, because it causes hives in less than 1 out of 10,000
    people. It may be banned someday, especially if a
    replacement becomes available. However, so far the FDA
    deems it an acceptable risk.

    Quoted message said:

    B. most food coloring used in the USA is made from coal
    tar

    There is a class of chemicals known as the "coal tar dyes"
    no matter what material they are made from. They got this
    name because back in the mid-19th century, they were
    developed by the German chemical industry from coal tar
    which was produced as a by-product of the cooking of coal
    to make synthetic gas used for heating and light and coke
    (pure carbon) used for refining steel. The name stuck,
    even though most of these chemicals are made from
    petroleum these days. The major raw coal-tar feedstocks
    were benzene, napthalene, and anthracene, which are the
    one-ring, two-ring, and three-ring hydrocarbons. You could
    call any derivatives of these structures "coal tar
    derivatives", even if they were made from some completely
    different material. That encompasses almost all of the
    interesting synthetic organic chemicals.

    Certain coal-tar dyes like the rhodamines are slightly
    carcinogenic, but they were banned over 50 years ago. None
    of the currently allowed food colors have any demonstrated
    cancer-causing ability, even at high doses in the most
    sensitive animals.

    Note that the main hazard from food colors is not in the
    U.S., but outside. For example, rhodamine continues to be
    used as a food color in Vietnam and mainland China.
    Frequently, FDA seizes imported food products containing
    these banned colors.

    Quoted message said:

    I would like to get any info that confirms or denies
    these claims.

    The current regulatory status of all U.S. food colors is
    disclosed here:

    fda.govapp
    A12.html

    Note that FD&C means "Food, Drug, and Cosmetic", which are
    dyes approved for food drug and cosmetic use. D&C means a
    dye is approved for drug and cosmetic but not food use. A
    lake is a pigment made by applying a dye to an insoluble
    white powder like alumina or kaolin to increase the
    coloring power of the dye.

    The more fundamental issue is, why would we want to eat a
    food that had been tampered with to the extent that it had
    to be colored? The whole concept of eating synthetic
    chemicals is just not very astute.

  4. Quoted message said:
    ziliath said:

    A. 6 out of 7 major food colors used in the USA are
    banned outside of the USA

    Banned where? By whom? All synthetic food colors in the
    U.S. have to pass very strict regulations, including for
    example not causing cancer in animals in any amount. Even
    the weakest carcinogen cannot be a food additive in the
    U.S. Currently, there is some controversy over FD&C Yellow
    #5, because it causes hives in less than 1 out of 10,000
    people. It may be banned someday, especially if a
    replacement becomes available. However, so far the FDA
    deems it an acceptable risk.

    <snip>

    Thank you for the very thoughtful reply. I hope that will
    calm the MHA somatically hypervigilant contingent.

  5. Quoted message said:

    Subject: food coloring made from coal tar?
    From: [email hidden] (ziliath)
    Date: 4/4/04 5:12 PM Eastern Daylight Time
    Message-id: <[email hidden]>

    Quoted message said:

    I'm always in search of the actual facts, not to be
    confused with what the media tells me, and I recently read
    in a handout from a health food store the following two
    interesting claims:

    Quoted message said:

    A. 6 out of 7 major food colors used in the USA are banned
    outside of the USA

    I cannot comment on this one since this is the first time I
    have heard it.

    It can very well be true, since the FDA does not do things
    the way they are done in the rest of the world.

    Quoted message said:

    B. most food coloring used in the USA is made from coal tar

    This one I can comment upon.

    Early dyes were made from coal tar chemicals. Today, most
    are made from petroleum chemicals.

    The key is the following chemical reaction: R-NH2 exposed
    to nitrite, NO2, and an acid, usually HCL, hydrochloric
    acid, undergoes a reaction to form a diazonium ion, N2+.
    This diazonium will bond to an aromatic ring like benzene
    or naphthalene, or anthracene, etc. to form a -N=N- bond.
    This bond produces chemicals with intense colors, thus
    "coal tar" dyes.

    All the coal tar dyes have the -N=N- bond as a part of their
    chemical structure.

    The first azo dye identified as a possible human carcinogen
    was "butter yellow". Originally, soy oil butter, was a
    white, plastic material and you had to add the dye to it to
    make it the color of butter. A Japanese researcher showed
    that butter yellow caused liver cancer in rats. That dye was
    then replaced with another dye, and today you do not have to
    add the dye at all. One of the azo dyes that I produced in
    my cancer research produced liver cancer and killed all the
    test animals within 30 days.

    Never believe that chemicals cannot induce cancer and kill
    you within months, even if you are not a mouse or a rat.

    Keep in mind that nitrites are added to our foods to prevent
    spoilage, particularly pork products. In the stomach you
    have the exact conditions set up to produce azo dyes that I
    would use in the lab. You have the nitrite, you have the
    HCl, you have an abundace of amines, and you have aromatic
    rings to bind to.

    I say get the nitrites out of our foods.

    DrC PhD.

  6. DRCEEPHD said:

    All the coal tar dyes have the -N=N- bond as a part of
    their chemical structure.

    No, they don't. For example, here's a link to the structure
    of rhodamine B (D&C Red #37), formerly used as a food color
    in the U.S. which continues to be used as a food color in
    some Asian countries:

    www02.so-net.ne.jpr215e.htm

    It is a so-called coal tar dye, being a derivative of
    anthracene. It's got two nitrogen atoms in it, but they are
    on opposite sides of the molecule, not bonded to each other.

    Why do you make up malarkey? Does it just amuse you to
    say stuff that has no basis in reality? Do you really
    believe any of it? Why do you pollute this newsgroup with
    your musings?

  7. Quoted message said:

    Thank you for the very thoughtful reply. I hope that will
    calm the MHA somatically hypervigilant contingent.

    Hypervigilance against the corporation-controlled government
    is entirely justified. The head of the FDA is a Monsanto
    executive. The head of the Energy department is an Enron
    executive. The system has been thoroughly corrupted,
    therefore yes, one should even be skeptical about his
    "thoughtful" reply which until confirmed by other sources
    remains merely a set of claims of unknown origin.

  8. ziliath said:

    be skeptical about his "thoughtful" reply which until
    confirmed by other sources remains merely a set of claims
    of unknown origin.

    As opposed to, say, the handout you obtained from a health
    food store?

    What sources did that handout cite as evidence for their
    absurd claims?

  9. "DRCEEPHD" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    Quoted message said:

    Subject: food coloring made from coal

    Quoted message said:

    Keep in mind that nitrites are added to our foods to
    prevent spoilage, particularly pork products. In the
    stomach you have the exact conditions


    set

    Quoted message said:

    up to produce azo dyes that I would use in the lab.

    HAHAHAHAHA! For the uninitated, this idiot is lying. He
    doesn't work in a lab.

    le moio

  10. ziliath said:
    Quoted message said:

    Thank you for the very thoughtful reply. I hope that will
    calm the MHA somatically hypervigilant contingent.

    Hypervigilance against the corporation-controlled
    government is entirely justified. The head of the FDA
    is a Monsanto executive. The head of the Energy
    department is an Enron executive. The system has been
    thoroughly corrupted, therefore yes, one should even be
    skeptical about his "thoughtful" reply which until
    confirmed by other sources remains merely a set of
    claims of unknown origin.

    You want the heads of regulatary agencies to know what they
    are about, don't you?

    Where are they going to get the experience except by working
    the field.

    The Presidency is the only office which does not require, or
    even distains, prior experience.

    j.

  11. Quoted message said:

    The past or present members of the FDA or Bush's cabinet
    have no bearing on the scientific facts.

    Oh, of course, and I'm sure there are really WMDs.

    Please, talk out of your ass some more, it's great comedy.

  12. Quoted message said:

    I say get the nitrites out of our foods.

    I already try to avoid foods that have additives of any
    sort. But the typical person simply has no idea, and
    especially if they are struggling just to survive while
    corporations move jobs and industries overseas, they
    aren't going to have the time or interest to be able to
    think about it.

  13. Quoted message said:

    HAHAHAHAHA! For the uninitated, this idiot is lying. He
    doesn't work in a lab.

    diazonium definition: The univalent cation RN2, in which R
    is an aromatic hydrocarbon.

    azo dye definition: any of numerous dyes containing
    azo groups

    coal tar definition: tar obtained by distillation of
    bituminous coal and used especially in making dyes and drugs

    sodium nitrite definition: a salt NaNO2 used especially in
    dye manufacture and as a meat preservative

    Sounds like he's on the right track to me. Now please,
    you back to eating your petroleum. The more in your case,
    the better.

  14. I have had an allergy to sodium nitrite since I was born. I
    was almost 35 before I figured out what made me ache and
    hurt. My mother used to tell me it was growing pains from
    not drinking enough milk as a child when I would cry myself
    to sleep each night from leg pains.

    wow...LOL

    "DRCEEPHD" <[email hidden]> wrote in message news:20040405192841.26858.00000769@mb-
    m12.aol.com...

    Quoted message said:
    Quoted message said:

    Subject: food coloring made from coal tar? From:
    [email hidden] (ziliath) Date: 4/4/04 5:12 PM Eastern
    Daylight Time Message-id:
    <[email hidden]>

    Quoted message said:

    I'm always in search of the actual facts, not to be
    confused with what the media tells me, and I recently
    read in a handout from a health food store the following
    two interesting claims:

    Quoted message said:

    A. 6 out of 7 major food colors used in the USA are
    banned outside of the USA

    I cannot comment on this one since this is the first time
    I have heard it.

    It can very well be true, since the FDA does not do things
    the way they


    are

    Quoted message said:

    done in the rest of the world.

    Quoted message said:

    B. most food coloring used in the USA is made from
    coal tar

    This one I can comment upon.

    Early dyes were made from coal tar chemicals. Today, most
    are made from petroleum chemicals.

    The key is the following chemical reaction: R-NH2 exposed
    to nitrite, NO2, and an acid, usually HCL, hydrochloric


    acid,

    Quoted message said:

    undergoes a reaction to form a diazonium ion, N2+. This
    diazonium will


    bond to

    Quoted message said:

    an aromatic ring like benzene or naphthalene, or
    anthracene, etc. to form


    a

    Quoted message said:

    -N=N- bond. This bond produces chemicals with intense
    colors, thus "coal


    tar"

    Quoted message said:

    dyes.

    All the coal tar dyes have the -N=N- bond as a part of
    their chemical structure.

    The first azo dye identified as a possible human
    carcinogen was "butter yellow". Originally, soy oil
    butter, was a white, plastic material and


    you had

    Quoted message said:

    to add the dye to it to make it the color of butter. A
    Japanese


    researcher

    Quoted message said:

    showed that butter yellow caused liver cancer in rats.
    That dye was then replaced with another dye, and today you
    do not have to add the dye at


    all.

    Quoted message said:

    One of the azo dyes that I produced in my cancer research
    produced liver cancer and killed all the test animals
    within 30 days.

    Never believe that chemicals cannot induce cancer and kill
    you within


    months,

    Quoted message said:

    even if you are not a mouse or a rat.

    Keep in mind that nitrites are added to our foods to
    prevent spoilage, particularly pork products. In the
    stomach you have the exact conditions


    set

    Quoted message said:

    up to produce azo dyes that I would use in the lab. You
    have the nitrite,


    you

    Quoted message said:

    have the HCl, you have an abundace of amines, and you have
    aromatic rings


    to

    Quoted message said:

    bind to.

    I say get the nitrites out of our foods.

    DrC PhD.

  15. In article <[email hidden]>,

    Unfiltered Ilsa said:
    Quoted message said:
    Quoted message said:

    The past or present members of the FDA or Bush's cabinet
    have no bearing on


    the scientific facts.

    Oh, of course, and I'm sure there are really WMDs.


    The UN, US, FDR, UK, Israel, Iran & Saddam himself thought
    there were WMD. They may well have been hidden, destroyed,
    shipped to Syria, or dispersed to terrorists organizations
    like Hamas, Hizbolla, & Al-Qaeda. The Israelis were so
    afraid of bio/chem weapons that they had all their people,
    including the Israeli Arabs, supplied with Gas Masks.

    It would have been very simple for the US to have planted a
    small amount of Anthrax and announced it as a "discovery".
    The US has not done this.

    Wait till we get a bit closer to the election. Today
    is too soon.

    -- David Wright :: alphabeta at prodigy.net These are my
    opinions only, but they're almost always correct. "If I
    have not seen as far as others, it is because giants were
    standing on my shoulders." (Hal Abelson, MIT)

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