Global InformationTriglycine sulfate information
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| Names | |
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| IUPAC name
Glycine sulfate (3:1)
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| Other names
Glycine sulfate; TGS
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| Identifiers | |
CAS Number
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3D model (JSmol)
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| ECHA InfoCard | 100.007.414 |
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PubChem CID
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CompTox Dashboard (EPA)
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InChI
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SMILES
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| Properties | |
Chemical formula
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C6H17N3O10S |
| Molar mass | 323.27 g·mol−1 |
| Appearance | White powder |
| Density | 1.69 g/cm3[1] |
| Structure | |
Crystal structure
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Monoclinic |
Space group
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P21[2] |
Lattice constant
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a = 0.9417 nm, b = 1.2643 nm, c = 0.5735 nm α = 90°, β = 110°, γ = 90°
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Triglycine sulfate (TGS) is a chemical compound with a formula (NH2CH2COOH)3·H2SO4. The empirical formula of TGS does not represent the molecular structure, which contains protonated glycine moieties and sulfate ions. TGS with protons replaced by deuterium is called deuterated TGS or DTGS; alternatively, DTGS may refer to doped TGS. By doping the DTGS with the amino acid L-Alanine, the crystal properties are improved and the new material is called Deuterated L-Alanine doped Triglycine Sulfate (DLATGS or DLTGS). These crystals are pyroelectric and ferroelectric which allows their use as photodetector elements in infrared spectroscopy and night vision applications.[3] TGS detectors have also been used as the target in vidicon cathode ray imager tubes.
TGS has a critical point for the order parameter of polarization, at 322.5 K.[4]
- ^ Kwan-Chi Kao (2004). Dielectric phenomena in solids: with emphasis on physical concepts of electronic processes. Academic Press. pp. 318–. ISBN 978-0-12-396561-5. Retrieved 12 May 2011.
- ^ Cite error: The named reference
j1was invoked but never defined (see the help page). - ^ "Pyroelectric Detectors: Materials, Applications, and Working Principle" (PDF).
- ^ Gonzalo, J. A. (1966-04-15). "Critical Behavior of Ferroelectric Triglycine Sulfate". Physical Review. 144 (2): 662–665. Bibcode:1966PhRv..144..662G. doi:10.1103/PhysRev.144.662.