Calvert, F. (Frederick) Crace', 1819-1873, Stenhouse, John, Groves, Charles Edward, 1841-1920 · Manchester : Palmer & Howe · leaf 432
HOFMAXX VIOLET. RRR. For a blue-violet B. Rosaniline 20 lbs. Alcohol 200 „ Hydrate of potassium or sodium 20 ., Iodide of methyl 10 „ Iodide of ethyl 10 ,, … HOFMAXX VIOLET. B. MANUFACTURE OF HOFMANN VIOLET. 395 For a bluer shade BB. Rosaniline 20 lbs. Alcohol 200 „ Hydrate of potassium or sodium 20 „ Iodide of methyl 40 „ These violets are now made in enamelled iron autoclavesof a capacity of about 18 or 20 gallons, and capable of sus-taining a…
Dyes and dyeing · Calico-printing
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