Finding Online Handbook for Reactants Properties

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The discussion revolves around gathering specific properties of various reactants for a lab report, including boiling point, molar weight, melting point, solubility, and density. Key reactants mentioned are Dichloromethane, MgSO4, Caffeine, water, and NaOH, with some properties already found for caffeine. Participants suggest using Material Safety Data Sheets (MSDS) as reliable sources for chemical properties and recommend the Combined Chemical Dictionary for comprehensive data. There is some confusion regarding the solubility of water in ethanol, which is clarified as miscible rather than immiscible. Overall, the thread emphasizes the importance of accurate chemical information for academic purposes.
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I have a lab report due tomorrow morning and I need to put some infos about the reactants (is this the correct english word?) we used. More precisely, I need to know their boiling point, molar weight, melting point, solubility in water (and ethanol if possible), density of liquids. The reactants I am talking about are Dichloromethane, MgSO_4, Caffeine( C_{8}H_{10}N_{4}O_{2} ), water and NaOH. If somebody could post a link (on a good website) where I could find those informations or just write them from a handbook with the reference it would be very cool. For now I found all the info I need about the caffeine on http://en.wikipedia.org/wiki/Caffeine and http://www.angelo.edu/faculty/kboudrea/molecules/caffeine/caffeine.htm but I can't find the properties of other reactants.

Thanks
 
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Dichloromethane

Molar Weight : 85 g/mol
Appearance: colourless liquid
Melting point: -97 C
Boiling point: 40 C
Water solubility: slight

MgSO4

Appearance: colourless odourless crystals or white powder
Molar Weight: 120.36 g/mol
Solubility: Very soluble in water. Not in ethanol.
Melting Point: 1124C (2055F)
Boiling Point: Not applicable.

Water

MP : 0 C
BP : 100 C
Molar Weight : 18 g/mol
Solubility : Immiscible with ethanol

NaOH

Appearance: White, deliquescent pellets or flakes.
Molar Weight: 40.00 g/mol
Boiling Point: 1390C (2534F)
Melting Point: 318C (604F)
Solubility: 111 g/100 g of water.
 
Usually Googling with "sodium hydroxide msds" or "dichloromethane msds", etc works pretty well.
MSDS stands for materials safety data sheet.
 
Thanks for the tip! Paper handbook are so outdated...
 
I found that : "Water Solubility is infinite in alcohols (ethanol, methanol), but negligible in gasoline." here: http://www.greenfuels.org/ethanolterms.html
But you wrote it's imiscible in water so I'm a little confused...

I also guess the infos in the MSDS are taken at 0°C ?
 
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Hello,

I think MSDS is the most reliable information after scientific ones. If you have a library connection, please refer to Combined Chemical Dictionary, a.k.a. ChemNetBase. The information you'll find there will be the best ones.

Regards,
chem_tr
 
asfd said:
I found that : "Water Solubility is infinite in alcohols (ethanol, methanol), but negligible in gasoline."

Oopps ! Yes, I meant "miscible".

Unless otherwise stated, data provided are taken at 0 deg C and 1 atm pressure.
 
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