1,3,5-Tris(2-hydroxyethyl)cyanuric acid
Synonym(s):1,3,5-Tris(2-hydroxyethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione;1,3,5-Tris(2-hydroxyethyl)cyanuric acid;1,3,5-Tris(2-hydroxyethyl)hexahydro-s-triazine-2,4,6-trione
- CAS NO.：839-90-7
- Empirical Formula: C9H15N3O6
- Molecular Weight: 261.23
- MDL number: MFCD00003549
- EINECS: 212-660-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:27:02
What is 1,3,5-Tris(2-hydroxyethyl)cyanuric acid?
Chemical properties
white powder
The Uses of 1,3,5-Tris(2-hydroxyethyl)cyanuric acid
1,3,5-Tris(2-hydroxyethyl)cyanuric Acid, is a building block that can be used in polymer science. It has also shown to have synergistic flame retardancy properties.
The Uses of 1,3,5-Tris(2-hydroxyethyl)cyanuric acid
Additive to plastics, especially to impart thermal stability.
Synthesis Reference(s)
The Journal of Organic Chemistry, 28, p. 85, 1963 DOI: 10.1021/jo01036a019
General Description
White powder.
Air & Water Reactions
Water soluble.
Reactivity Profile
An organo-isocyanate. Isocyanates and thioisocyanates are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide.
Fire Hazard
Flash point data for 1,3,5-Tris(2-hydroxyethyl)cyanuric acid are not available, but 1,3,5-Tris(2-hydroxyethyl)cyanuric acid is probably combustible.
Flammability and Explosibility
Not classified
Properties of 1,3,5-Tris(2-hydroxyethyl)cyanuric acid
| Melting point: | 136-140 °C(lit.) |
| Boiling point: | 526.7±45.0 °C(Predicted) |
| Density | 1.498±0.06 g/cm3(Predicted) |
| vapor pressure | 0.001Pa at 50℃ |
| Flash point: | 241℃ |
| storage temp. | Store below +30°C. |
| solubility | 1150g/l |
| form | Solid |
| pka | 14.03±0.10(Predicted) |
| color | White to Off-White |
| PH | 7 (100g/l, H2O, 20℃) |
| Water Solubility | 572g/L at 20℃ |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 839-90-7(CAS DataBase Reference) |
| EPA Substance Registry System | Tris(2-hydroxyethyl)isocyanurate (839-90-7) |
Safety information for 1,3,5-Tris(2-hydroxyethyl)cyanuric acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 1,3,5-Tris(2-hydroxyethyl)cyanuric acid
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