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Photographers' Formulary Hydroquinone (100 Grams)

B&H # PHH100G MFR # 10-0670 100G
Photographers' Formulary Hydroquinone (100 Grams)

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Available For Store Pickup in: 3-5 weeks

Product Highlights

  • Reducing Agent
  • Changes Silver Halides to Silver

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You Pay: $8.95

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Hydroquinone is a clean-working and non-staining compound typically found in most photographic developers. It oxidizes easily both in solution and as crystals. It's most common use is, along with Metol, to change the silver halides to elemental silver.

At temperatures bellow 50°F/10°C hydroquinone developers are inactive. It is extremely susceptible to the action of bromide
With caustic alkalies (e.g., sodium hydroxide) its action is very rapid, with the highest possible contrast. For this reason, it is the most widely used developer for technical applications, especially in process work where the highest attainable contrast is essential. When compounded with alkali carbonates it gives a slow-working but contrasty developer
Hydroquione developers keep well and are slowly exhausted
Hydroquione alone is not largely used but in combination with metol (MQ) or Pheinidone (PQ), it is among the most popular developers
By varying the relative quantities of metol and hydroquione and adjusting the quantities of sulfite and carbonate, almost any desired contrast or rate of development can be obtained
Synonyms 1,4-Dihydroxybenzene
Para-Dihydroxybenzene
1,4-Benzenediol
Dihydroxybenzene
Hydrochinon
Hydroquinol
Quinol
Tecquinol
Appearance White crystals
Lustrous, silky, white needles
Odorless
Uses Black & white photographic developer component that builds density in combination with other developers
Chemical Formula C6H4(OH)2
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