Thursday, April 14, 2011
Hydrated Lime/Slaked Lime/Calcium Hydroxide
Hydrated Lime (or calcium hydroxide, or slaked lime) is usually a dry powder resulting from the controlled slaking of quicklime with water. The exothermic or released heat of reaction is captured and used to evaporate the excess slaking water.
Hydrated Lime is a chemical, with chemical formula Ca(OH)2 {Calcium Hydroxide}. Hydrated Lime is also known as Slaked Lime. It is white and in powder form with Ca(OH)2 contents varying from 96% to 70%.
IDENTIFICATION
Chemical name: Calcium hydroxide
Product name(s): Hydrated Lime, Industrial Hydrate
Formula: Ca(OH)2
Molecular Weight 74.08
Material Uses . Water Treatment Plant
. Effluent Treatment Plant
. pH Control
. Paint Industries
. Petroleum refining Industries
. Food Industries
. Leather Industry
. Paper Industry
. Pesticides
. Fertilizers
. Metallurgical Industries (Copper, Aluminum, Steel, Iron, etc)
. Marble/Granite Cutting
. Glass Industry
. Pharmaceutical Industry
. Cement paints
. Bleaching Powder
. Di Calcium Phosphate manufacturing
. Rubber Industry
. Road making and construction
. Sugar Industries
Specification of Hydrated Lime - Hydrated Lime/Slaked Lime/Calcium Hydroxide
Calcium Hydroxide
Ca(OH)2
96%
92%
90%
85%
80%
75%
70%
Calcium Oxide
CaO
72.5%
69.5%
68%
64%
60.5%
56.7%
52.9%
Calcium Carbonate
CaCO3
0.5%
1%
2%
4%
6%
8%
12%
Magnesium Oxide
MgO
0.4%
0.4%
0.4%
0.4%
1%
1%
1%
Acid Insoluble
SiO2
0.1 %
0.2%
0.4%
1.2%
2.5%
4%
6%
Alumina
Al2O3
0.03%
0.03%
0.05%
0.10%
0.15%
0.20%
0.25%
Iron
Fe2O3
0.03%
0.03%
0.05%
0.10%
0.15%
0.20%
0.25%
Moisture
0.2%
0.3%
0.5%
0.5%
0.5%
0.5%
0.5%
Mesh
(BSS)
400
375
250
200
175
150
150
Labels:
Calcium Hydroxide,
Hydrated Lime,
slaked lime
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Here's another interesting fact about slaked lime: When acid is poured onto slaked lime, it will burn with RED FLAMES without carbon dioxide emission.
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ReplyDeleteits excellent post.thanks for sharing.
ReplyDeleteQuicklime and Hydrated Lime