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Penunjuk Semesta

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Post time 19-11-2007 04:03 PM | Show all posts |Read mode
Sesiapa yang kaki kimia di sini boleh tak tolong carikan formula untuk Penunjuk Semesta?
Aku dah cari kat web, buku tapi sumernya takda atau yang ada pun cuma menunjukkan kandungan nya ajer....
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Post time 19-11-2007 07:25 PM | Show all posts
Ooh, menurut pembacaan aku, Penunjuk Semesta (Universal Indicator) terdiri daripada beberapa bahan, bukan satu bahan kimia jer. Dan lain company, komposisi bahan2 kimia dlm Penunjuk Semesta diorang ada beza2 skit. Tambahan lagi, kandungan Indicator diorang di-patent-kan. Means, aderla bahan secret dlm tu yg diorang tak nak bagitau...

Tapi, "A universal indicator is typically composed of water, methanol, propan-1-ol, phenolphthallien sodium salt, methyl red sodium salt, phenol,4,4'-(3h-2,1-benzoxathiol-3-ylidene)bis2-bromo--methy l-6-(1-methylethyl)-, s,s-dioxide, monosodium salt, and phenol,4,4'-(3h-2,1-benzoxathiol-3-ylidene)bis5-methyl2-(1-m ethylethyl)-, s,s-dioxide, monosodium salt."

Source: Wiki

[ Last edited by  meitantei at 19-11-2007 07:27 PM ]
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 Author| Post time 20-11-2007 12:07 PM | Show all posts
thank you King!
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