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2,5-DINITROPHENOL
2,5-DINITROPHENOL
- CAS:
- 329-71-5
- MF:
- C6H4N2O5
- MW:
- 184.11
Properties
- Melting point:
- 103-106 °C(lit.)
- Boiling point:
- 318.03°C (rough estimate)
- Density
- 1.7195 (rough estimate)
- refractive index
- 1.4738 (estimate)
- solubility
- Solubility Sparingly soluble in water; soluble in ethanol, ether
- pka
- 5.21, 5.1, 5.0(at 25℃)
- form
- Solid
- color
- Yellowish needles
- PH Range
- 4(colourless)-5.8(yellow)
- Merck
- 14,3281
- BRN
- 1913411
- Stability:
- Light Sensitive
- Major Application
- Liquid crystal films, electrophotographic materials, adhesives, inks, lubricants, preservation of cut flowers, food storage, materials for evaluating dental cariesactivity
Safety Information
- Symbol(GHS)
GHS02,GHS06,GHS08,GHS09
- Signal word
- Danger
- Hazard statements
- H228-H300+H310+H330-H301-H311-H331-H373-H411
- Precautionary statements
- P261-P273-P280-P301+P310-P311-P210-P240-P241-P260-P262-P264-P270-P271-P284-P301+P310+P330-P302+P352+P310+P361+P364-P304+P340+P310-P391-P403+P233-P405-P501
- Hazard Codes
- T,N
- Risk Statements
- 23/24/25-33-51/53
- Safety Statements
- 28-37-45-61
- RIDADR
- UN 1320 4.1/PG 1
- WGK Germany
- 3
- RTECS
- SL2900000
- HazardClass
- 4.1
- PackingGroup
- I
- HS Code
- 29089990
Use
2,5-DINITROPHENOL can detonate or explode when heated under confinement [USCG, 1999]. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has Ka = 1.3 x 10^[-10]). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases.
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