Re: Oxidation

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Posted by Catherine Cartwright Jones on June 20, 2001 at 21:22:54:

In reply to: Oxidation posted by Lauren on June 20, 2001 at 20:32:10:

Henna does NOT get oxidized by the lemon juice. The lemon juice is
there to get the henna to release dye.

Once released from the cellulose plant cells, it is available to go
into your skin, or to get oxidized by the air (the brown glaze on the
henna when it sits out.

Make your paste and get it onto your skin before the air oxidizes your
paste. (or inert your paste, like manufacturers do when they're
bottling it for the duration)

If you paste is sealed (latex or so) when you first scrape it off, the
stain's orange. (unoxidized, or at least untweeked) Then it oxidizes
in the air. Or gets its H bopped in another way. ...say, if you have
a terpinene or a pinene molecule cruising alongside the hennotannic
acid molecule into your epidermal cells, which does the job pronto.
Or, if you have a camel and a bucket, and a willingness to do the
despicable.

So .... the unoxidized hennotannic acid stain is orange, then one of a
few things can happen to oxidize/percipitate it to burgundy, brown,
black.

Damn, I wish I'd paid attention in chemistry! Silly me. I paid
attention to my boyfriend instead. I thought that I'd get more use
out of learning about sex than about chemistry. (well.......)

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Re: Oxidation MyST 02:40:29 6/21/2001 (0)

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: Henna does NOT get oxidized by the lemon juice. The lemon juice is : there to get the henna to release dye. : : Once released from the cellulose plant cells, it is available to go : into your skin, or to get oxidized by the air (the brown glaze on the : henna when it sits out. : : Make your paste and get it onto your skin before the air oxidizes your : paste. (or inert your paste, like manufacturers do when they're : bottling it for the duration) : : If you paste is sealed (latex or so) when you first scrape it off, the : stain's orange. (unoxidized, or at least untweeked) Then it oxidizes : in the air. Or gets its H bopped in another way. ...say, if you have : a terpinene or a pinene molecule cruising alongside the hennotannic : acid molecule into your epidermal cells, which does the job pronto. : Or, if you have a camel and a bucket, and a willingness to do the : despicable. : : So .... the unoxidized hennotannic acid stain is orange, then one of a : few things can happen to oxidize/percipitate it to burgundy, brown, : black. : : Damn, I wish I'd paid attention in chemistry! Silly me. I paid : attention to my boyfriend instead. I thought that I'd get more use : out of learning about sex than about chemistry. (well.......)
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