Ammonium Aluminum Sulfate [NH4Al (SO4) 2] is a colorless, clear crystal or white powder.Taste slightly sweet and astringent. Its slightly soluble in water, dilute acid and glycerol, water-soluble acidic. Insoluble in alcohol. Often with 12 crystal water form [Dodecahydrate ammonium aluminum sulfate, commonly known as ammonium alum, chemical formula NH4Al (SO4) 2 · 12H2O] exists. At 120 ℃ loss of 10 molecules of crystal water, in 250 ℃ be anhydrous, above 280 ℃ decomposition. The packaging should be complete and the load should be safe. During transport to ensure that the container does not leak, do not collapse, do not fall, no damage. It is forbidden to mix and transport with oxidants, edible chemicals and so on. Transport should be anti-exposure, rain, high temperature. Vehicle transport should be carried out thoroughly cleaned.
Detailed introduction:
Synonyms:Aluminium ammonium sulfate; aluminum ammonium disulfate,alum,ammonia alum,aluminium ammonium sulfate
Molecular Formula:NH4Al(SO4)2
Molecular Weight: 237.15
Cas No.: 7784-25-0
ammonium aluminum sulfate Specification:
Content | 99.5-100.5% Min |
Moisture | 4% Max |
As | 2 ppm max |
Pb | 20 ppm Max |
water insoluble | 0.2% Max |
appearance | white crystal or powder |
Usage:
Used as Analysis reagents, mordant, water purifier; used in the manufacture of pigments, copperplating
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Product Categories : Inorganic Chemicals
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