Calcium Hydroxide:
Specifications & Grades of Commercial Pure Hydrated Lime or Slaked Lime or Calcium Hydroxide:
| Grades | A1++ | A1+ |
| % of available lime as Ca(OH)2 | 96±1 | +94 |
| Active CaO(%) | +72.5 | +71 |
| Acid insolubles (max.)% | 0.1 | 0.2 |
| Iron | 150 PPM | 200 PPM |
| Alumina | In traces | In traces |
| Magnesia as MgO (max.)% | 0.5 | 0.55 |
| Mesh (BSS) | 500 | 400 |
| Packing Laminated. PP/ HDPE Bags with an extra HMHDP liner or in drums or as required by the buyer. | ||
We also offer synthetic Calcium Hydroxide good for precise applications like Aramid Fiber.
British Pharmacopoeia
Calcium Hydroxide BP Ca(OH)2
Calcium Hydroxide BP British Pharmacopoeia
Ca(OH)2 — 74.1
Preparation
Calcium Hydroxide Solution
DEFINITION
Content
95.0 per cent to 100.5 per cent.
CHARACTERS
Appearance
White or almost white, fine powder.
Solubility
Practically insoluble in water.
IDENTIFICATION
A. To 0.80 g in a mortar, add 10 ml of water R and 0.5 ml of phenolphthalein solution and mix. The suspension turns red. On addition of 17.5 ml of 1 M hydrochloric acid , the suspension becomes colourless without effervescing. The red colour occurs again when the mixture is triturated for 1 min. On addition of a further 6 ml of 1 M hydrochloric acid and triturating, the solution becomes colourless.
B. Dissolve about 0.1 g in dilute hydrochloric acid and dilute to 10 ml with water . 5 ml of the solution give reaction of calcium.
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