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CAS RN: 39394-84-8 | Product Number: P1042

Phosphorus Pentoxide - Methanesulfonic Acid


Purity:
Synonyms:
  • Eaton's Reagent
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25G
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Note:

This product may deposit crystals at under 25 deg C. If necessary, please heat to dissolve in a warm water bath (30 – 40 deg C) before use.

Product Number P1042
Physical State (20 deg.C) Liquid
Storage Temperature Room Temperature (Recommended in a cool and dark place, <15°C)
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive
CAS RN 39394-84-8
PubChem Substance ID 87575154
MDL Number

MFCD00070545

Specifications
Appearance Colorless to Yellow to Orange clear liquid
Methane sulfonic acid(Neutralization Tit 89.0 to 92.0 %
Phosphorus pentoxide(Neutralization Tit. 8.0 to 11.0 %
Properties (reference)
Boiling Point 122 °C/1 mmHg
Refractive Index 1.44
GHS
Pictogram Pictogram Pictogram Pictogram
Signal Word Danger
Hazard Statements H301 : Toxic if swallowed.
H312 + H332 : Harmful in contact with skin or if inhaled.
H314 : Causes severe skin burns and eye damage.
H361 : Suspected of damaging fertility or the unborn child.
H290 : May be corrosive to metals.
Precautionary Statements P201 : Obtain special instructions before use.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P301 + P310 + P330 : IF SWALLOWED: Immediately call a POISON CENTER/doctor. Rinse mouth.
P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
Related Laws:
Transport Information:
UN Number UN2922
Class 8 / 6.1
Packing Group II
HS Number 2919900090
Application
Eaton’s Reagent: A Less Viscous Alternative to PPA

P1042

Experimental procedure5): 1 (1.8g, 6.6 mmol) is added to a flask and phosphorus pentoxide-methanesulfonic acid (7 mL) is then added to the flask. Reaction mixture is aged at 50 °C, and progress of reaction is followed by HPLC. The reaction mixture is cooled to 5 °C and slowly transferred to an excess saturated sodium carbonate solution (10 eq.) that is cooled to 10 °C. Solid is filtered and washed with water (20 mL) and is dried in a vac. oven at 50 °C for 12 h. 2 is isolated in 97% yield (1.5g, 6.4 mmol).

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