Photographers' Formulary Rochelle Salt (100g)

BH #PHRS100G • MFR #10-1120 100G
Photographers' Formulary
Photographers' Formulary Rochelle Salt (100g)
Key Features
  • Used in Kallitype Developers
  • Also Used for Silvering Mirrors
This is 100g of Rochelle Salt from Photographers' Formulary. It is commonly used as a component when mixing brown, sepia, blue, and maroon Kallitype developers. It is also used for silvering mirrors and is an ingredient in Fehling's solution.
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Expected availability: 2-4 weeks
$6.95

Important Notice

  • This item is noncancelable and nonreturnable.

Photographers' Formulary Rochelle Salt (100g)

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Photographers' Formulary 10-1120 100G Overview

This is 100g of Rochelle Salt from Photographers' Formulary. It is commonly used as a component when mixing brown, sepia, blue, and maroon Kallitype developers. It is also used for silvering mirrors and is an ingredient in Fehling's solution.

UPC: 675152112026

Photographers' Formulary 10-1120 100G Specs

SynonymsSodium potassium tartrate, tetrahydrate
Rochelle salt
Rochelle salt tetrahydrate
Seignette salt tetrahydrate
Potassium sodium L-tartrate tetrahydrate
Potassium Sodium Tartrate Tetrahydrate
AppearanceColorless to blue-white orthorhombic crystalline salt
UsesIt is an ingredient of Fehling's solution . It is used in silvering mirrors.
Chemical FormulaKNaC4H4O6.4H2O
NotesAlso called Seignette salt after Pierre Seignette, an apothecary of La Rochelle, France, who was the first to make it (c.1675). Chemically, it is potassium sodium tartrate.
Weight3.5 oz / 100 g
Packaging Info
Package Weight0.25 lb
Box Dimensions (LxWxH)5 x 2 x 2"
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