Journal
CRYSTAL GROWTH & DESIGN
Volume 10, Issue 3, Pages 1296-1300Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cg901334z
Keywords
-
Funding
- Japan Society for the Promotion of Science [19760137]
- Ministry of Education, Culture, Sport, and Technology in Japan
- Grants-in-Aid for Scientific Research [19760137] Funding Source: KAKEN
Ask authors/readers for more resources
This paper reports visual observations of clathrate hydrate crystals growth at the interface of water/seawater and it guest substance to reveal the effect of salts on the crystal growth. Cyclopentane was used its the guest substance to form a structure II hydrate. Cyclopentane hydrate crystals grew along the interface of cyclopentane and seawater to form a polycrystalline layer covering the entire interface. We visually analyzed the individual crystals and classified the morphology of the hydrate crystals according to the subcooling (Delta T-sub) from the cyclopentane hydrate equilibrium temperature of atmospheric pressure. The results showed that the morphology of the individual cyclopentane hydrate crystals in water and seawater are qualitatively similar at similar subcooling. As a general trend, for Delta T-sub < 2.0 K the shape of the hydrate crystals is typically polygons, at Delta T-sub = 2.0-4.5 K, the shape changes to small polygons or slender polygons, and for Delta T-sub > 4.5 K, the crystals have triangular or swordlike shape.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available