You clicked on the Sodium Chloride Ingot. This page gives a brief description of Hilger Crystals' crystal growth techniques.   Related Links. KBr | NaCl | CsI   Optical Products   Home   Ingots are produced from a solidification of the molten material which is held in a high purity ceramic crucible. An orientated selected seed is used to ensure that high quality crystal growth is achieved. Careful control of the chemical and thermal environment is required in order to produce a high quality consistent product. Techniques such as Bridgeman Stockbarger, Kyropulous and Czochralski are employed to meet the above criteria and crystals up to 130 Kg and 400 mm can be produced in our in-house designed and constructed crystal growth furnaces. Material is processed to form a variety of geometric shapes, from rectangles to trapezoids. Efficient utilisation of materials ensure that a competitively priced component or device is available to our customers. Machining takes place on manual as well as computer controlled equipment depending on complexity and volume. This allows us to serve both high volume and niche market requirements. In house test facilities ensure that finished devices meet customer specifications