Search results
Results from the WOW.Com Content Network
Trifluoromethanesulfonic anhydride, also known as triflic anhydride, is the chemical compound with the formula (CF 3 SO 2) 2 O. It is the acid anhydride derived from triflic acid.
158 × 82 × 18.2 mm (6.22 × 3.23 × 0.72 in) The HP 35s (F2215A) is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s , it was introduced to commemorate the 35th anniversary of the HP-35 , Hewlett-Packard's first pocket calculator (and the world's first pocket scientific calculator ).
Different CAS Registry Numbers [1] are used for each form of a substance. For example, something simple like alanine will have one CAS# for the D form, another for L, another for "unspecified" and a fourth one for racemic. There would be another four CAS#s for the hydrochloride, four for the (1:1) sulfate, four for the (2:1)sulfate, etc.
The model featured a 5×6-dot LCD matrix cells on the top line of the screen and a 7-segment LCD on the bottom line of the screen that had been used in Casio fx-4500P programmable calculators. [1] The S-V.P.A.M. system was also used in the other W series models and also the MS series of calculators that followed.
c 6 h 5 co 2 h + ch 3 ch 2 co 2 h → c 6 h 5 c(o)ch 2 ch 3 + co 2 + h 2 o Ludwig Claisen discovered that α -methoxystyrene forms this compound when heated for an hour at 300 °C (65% yield). [ 2 ] [ 3 ]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
There have been no human cases of bird flu associated with house cats, L.A. officials said. MORE: CDC confirms 1st case of severe bird flu in US Health officials say the overall risk of H5 bird ...
C 4 H 10 + 3.5 O 2 → C 4 H 2 O 3 + 4 H 2 O ∆H = −1236 kJ/mol The main competing process entails full combustion of the butane, a conversion that is twice as exothermic as the partial oxidation. The traditional method using benzene became uneconomical due to the high and still rising benzene prices and by complying with the regulations of ...