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FORMULA

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Originally appearing in Volume V19, Page 169 of the 1911 Encyclopedia Britannica.

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FORMULA . 2-oxy-8-sulphonic From p-naphthol and concen- See also:

SODIUM [symbol Na, from Lat. natrium; atomic weight 23.00 (0=16)]

Sodium See also:

salt soluble in (See also:

BAEYER, JOHANN FRIEDRICH WILHELM ADOLF VON (1835– )

Baeyer's See also:

ACID (from the Lat. root ac-, sharp; acere, to be sour)

acid) trated sulphuric acid at strong See also:

ALCOHOL

alcohol. 50°–60° C. 2-oxy-6-sulphonic From ,Q-naphthol and concen- Sodium salt insoluble in (Schaffer's acid) trated sulphuric at 100° C. alcohol. 2-oxy-7-sulphonic By See also:

FUSION

fusion of See also:

NAPHTHALENE, C

naphthalene 2.7- Very soluble in See also:

WATER

water (F-acid) disul phonic acid with See also:

CAUSTIC (Gr. rcavvraubs, burning)

caustic and alcohol. soda at 200°–250° C. 2-oxy-3.6-disulphonic Both R- and G-acid from f - The sodium salts separ- (R-acid) naphthol and concentrated ated by crystalliza- sulphuric acid at Ioo°– tion. R-salt insoluble 110°C. in alcohol ; G-salt soluble. 2-oxy-6.8-disulphonic (G-acid) 2-oxy-3.6.8-trisulphonic From A-naphthol and fuming Alkaline solutions show sulphuric acid at 14o°–16o°C. See also:

green See also:

FLUORESCENCE

fluorescence. a-naphthoquinone-oxime, formed by the See also:

ACTION

action of nitrous acid on a-naphthol or of See also:

HYDROXYLAMINE, NH2OH

hydroxylamine hydrochloride on a-naphthoquinone (H. See also:

GOLDSCHMIDT, HERMANN (1802-1866)

Goldschmidt and H. See also:

Schmidt, Ber., 1884, 17 p.

2064) ; and 2-nitroso-a-naphthol (i3-naphthoquinone-oxime), formed by the action of hydroxylamine hydrochloride on (3-naphthoquinone.

End of Article: FORMULA

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