Alph is no longer for sale.

I am afraid revenue generated from Alph has not proven to be sufficient to justify its continued sale. I greatly appreciate the support of the folks who have purchased Alph in the past and hope that it will continue to serve you well in the future.

This and related pages will be maintained for archival purposes only.

Craig


Alph Store

The base Alph application is available from the Apple App Store,

Optional Features

The following features can be purchased right in Alph from the Alph Store. The Apple App store will price these in your local currency, which will be displayed with the description on the store page. The price in Canadian and US dollars is displayed below as a guide.

Alph Professional $449.99

Includes all Alph options and compounds listed below and expands the total compound library to over 5600 compounds. It also includes VMG's NRTL property package for chemical systems.

Steam Property Packages - $9.99

VMG's modification of NIST's 1995 and 1997 steam tables. Modifications include calculating multicomponent mixtures, water decantation for hydrocarbon systems and highly accurate solubility of important industrial gases in water such as nitrogen and oxygen.

Custom Compounds - $39.99

Add hydrocarbon compounds that are not in the library, by characterizing them with the normal boiling point and optionally liquid density, molecular weight, critical temperature, critical pressure and the acentric factor. Custom Compound Help Page.

Additional Compound Packages

Additional compounds can be purchased with the following packages:

Package NameCompounds IncludedPrice
Inorganics oxygen
argon
hydrogen
helium-4
ammonia
nitrous oxide
sulfur dioxide
carbon monoxide
$19.99
Hydrate Control Compounds Adds the following compounds for dehydration and hydrate control:
methanol
ethanol
ethylene glycol
diethylene glycol
triethylene glycol
$19.99
Sulfur Compounds methyl mercaptan
ethyl mercaptan
carbonyl sulfide
carbon disulfide
dimethyl sulfide
$19.99
Refrigerants trichlorofluoromethane (R11)
dichlorodifluoromethane (R12)
chlorodifluoromethane (R22)
difluoromethane (R32)
chloropentafluoroethane (R115)
pentafluoroethane (R125)
1,1,1,2-tetrafluoroethane (R134a)
1-chloro-1,1-difluoroethane (R142b)
1,1,1-trifluoroethane (R143a)
1,1-difluoroethane (R152a)
$19.99
Petro Chem ethylene
propadiene
propylene
1,2-butadiene
1,3-butadiene
1-butene
trans-2-butene
cis-2-butene
isobutene
isoprene
1-pentene
1-hexene
benzene
toluene
ethyl-benzene
styrene
o-xylene
m-xylene
p-xylene
cyclo-propane
cyclo-butane
cycle-butene
cyclo-pentane
cyclo-pentene
cyclo-hexane
cycle-hexene
$69.99