Ammonium tartrate
Offer type: salePublished: 01.04.2015
Ammonium tartrate. Properties:
White crystals of the monoclinic system, 1,601 square g/cm3. The reagent is soluble in
water (6.3 g in 100 g of water at 15 °C). The air gradually loses NH3,
turning into an acidic salt NH4HC4H4O6. Aqueous solutions moldy when
the storage.
Preparation:
The drug is sufficiently high chemical purity is usually possible to obtain the cooperation of tartaric acid with ammonium carbonate.
Dissolve 90 g of tartaric acid H2C4H4O6 (h) in 100 ml of water at 50-60 °C and
to the solution was added gradually (NH4)2CO3 (h. e. a., about 115 g) to
a slightly alkaline reaction to phenolphthalein. The solution is boiled 20-30 min,
evaporated on a water bath until the crystalline film, then
quickly filtered and the filtrate cooled. The precipitated crystals are suctioned on
a Buechner funnel and dried at 40 °C.
The output is ~85 g (~80%).
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