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Bromothymol Blue Structure

Bromothymol Blue

Chemical Properties

Melting point 200-202 °C (lit.)
Density  1.4668 (estimate)
Flash point 38 °C
storage temp.  Store at +5°C to +30°C.
solubility  Solubility Sparingly soluble in water, benzene; soluble in ethanol, ether; insoluble in petroleum ether
pka 7.0, 7.1(at 25℃)
Boiling point 614.3±55.0 °C(Predicted)
form  Solid
color  Pink-brown to purple
Odor Characteristic odour
PH pH : 6.0~7.6
PH Range 6(yellow)-7.6(blue)
Water Solubility  slightly soluble
λmax 420nm, 435nm, 620nm
Merck  14,1445
BRN  373934
Stability Stable. Incompatible with strong oxidizing agents.
Major Application Sol-gel matrix, fuel cells, optical sensors, combustion gas detection system, paints, toys, cleaning products, detergents, textiles, food freshness sensor, identifying fresh and stale rice,wheat, detecting microorganisms, bacterial growth, psychoactive drug, dental materials
LogP 8.600 (est)
CAS DataBase Reference 76-59-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII VGU4LM0H96
EPA Substance Registry System Bromothymol blue (76-59-5)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H226-H319-H335+H336-H340-H360-H372-H373
Precautionary statements P201-P202-P210-P233-P240-P241+P242+P243-P260-P264-P270-P271-P280-P303+P361+P353-P304+P340+P312-P305+P351+P338+P337+P313-P308+P313-P403+P233-P405-P501
Hazard Codes  Xn
Risk Statements  10-41-36/37/38-20/21/22
Safety Statements  24/25-39-26-36
RIDADR  1170
WGK Germany  3
RTECS  SJ450000
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29349990
NFPA 704:
1
1 0

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