Aluminium potassium sulfate dodecahydrate manufacturers and suppliers

Aluminium potassium sulfate dodecahydrate suppliers

Properties

Melting point:: 92 °C(lit.)

Boiling point:: 200°C

Density: 1.757 g/mL at 25 °C(lit.)

storage temp.: Store at +5°C to +30°C.

solubility: H2O: soluble0.5M, clear, colorless

form: Solid

Specific Gravity: 1.757

color: White

PH: 3.0-3.5 (25℃, 50mg/mL in H2O)

Odor: Odorless

PH Range: 3.3

Water Solubility: 140 G/L (20 ºC)

Merck: 14,360

Stability:: Stable. Incompatible with steel, aluminium, copper, zinc, bases, strong oxidizing agents.

LogP: -1.031 (est)

Safety Information

Symbol(GHS): GHS07

Signal word: Warning

Hazard statements: H315-H319-H335

Precautionary statements: P261-P280-P271

Hazard Codes: Xn,Xi

Risk Statements: 36/38-22-36/37/38-21/22

Safety Statements: 22-24/25-37/39-26-36-20-13-2

WGK Germany: 3

RTECS: WS5690000

TSCA: Yes

HS Code: 28332990

Use

Aluminium potassium sulfate dodecahydrate is a white crystal that is soluble in water. It is made by roasting alunite in a furnace and then harvesting the product by crystallization. Aluminium potassium sulfate dodecahydrate was used to harden gelatin emulsions by introduction, by bathing the exposed plates prior to development, or by use in the fixing bath. Mixed with citric or other acids, it was also used as a clearing bath to remove developer stains in negatives.

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