[Gray Wolf]

Check out the 30 most common volatile organic compounds in cannabis and their physical properties at Sweet Mary's Charms:

https://thealchemistresource.thealch...ltvmlo_30.html

To open, cut and paste, but remove the s in https.

[WaterFarmFan]

Great stuff as always! I printed this one and will keep it as a study reference!

"Due to marijuana proscription in the 1930's, little legal research has been possible in the US and many other locations, so until fairly recently the generally accepted explanation was that it was the medicinal effects of the THC that we were experiencing when consuming cannabis products. However, with closer examination, it became apparent that each individual terpene, terpenoid, and flavonoid in the mixture contributes its medicinal effect, so that the overall effect is an entourage of the constituent effects. The whole become at least the sum of it's parts, if not greater."

"I say mostly, because there is also the issue of essential oil safety. The beloved terpenes that we seek and covet do indeed have their own medicinal and chemical properties, some of which are used to sanitize toilet bowls, strip paint, and remove metal oxides, and can come from a variety of sources, some insalubrious, sooooo as we enter this realm, it pays to pay attention."

[WaterFarmFan]

A few general chemistry questions, as it relates to terpenes:

You noted the importance of small amounts of esters. Are these compounds always clear? Do they separate in chilled h20 or stay miscible?

What class of terpenes or organics would have a chalky/milk white color? Every time that I do a vacuum oven terpene extraction, my hydrosol has a very light white color. When I transfer to a separatory funnel and place in a 2C fridge for ~12 hours, the white layer will float to the top of the h20 (just below the terpene layer) but still be water soluble and slightly miscible. If you bump the funnel or as it slowly drains, this layer will slightly mix with water, so I have always just discarded it - Well actually, I drink the hydrosol, and sometimes think it gives me superpowers (haha, not really but I do feel pretty good in an unscientific way...)

Thanks!

[WaterFarmFan]

Do you think Camphor could have the physical (separating) properties that I described above? If so, it sounds like I maybe need to just discard my hydrosol?

From your link above:

16.0 Camphor aka 1.7.7-trimethylbiclo(2.2.1)heptan-2-one

Camphor is a natural occurring terpene found in a many aromatic plants including Camphor Laurel wood oil an origin of natural camphor gum or natural camphor crystals. Natural camphor it used in fragrances, flavors and OTC pharmaceutical preparations. Camphor is available in a natural and a synthetic material.
Camphor is a very impactful aromatic chemical compound. It is classified as a corrosive compound and is difficult to import and ship and must be labeled accordingly. This material should be used cautiously.

Even though it is found in many aromatic plants including Lavandin oils and other lavender Vera essential oils as well as being a main constituent in certain varieties of food grade essential oils like Rosemary and Marjoram it should be used cautiously and sparingly in flavors and fragrances. RIFM and FEMA guidelines should be consulted on acceptable levels for finished goods

Camphor has been used for centuries, with various uses. It’s used for fireworks and other explosives and munitions, as a deterrent for pests, is often used as a disinfectant, insecticide and germicide. In the culinary world, is used as a flavor component for savory and camphoraceous applications.

Traditional use of camphor suggests that it has both stimulant and a sedative property. Most consumers can recognize camphor in a variety of products including mouth wash and over the counter anti-inflammatory, anti-arthritic, and anti-spasmodic sports and pain topical preparations.

16.1 Physical Properties

Chemical formula - C10 H16 O
CAS - 76-22-2
Molar mass - 152.23672000
Appearance - White to pale yellow crystalline solid
Density - 0.992 g·cm−3
Melting Point - 176.00 to 177.00 °C. @ 760.00 mm Hg
Boiling point - 204.00 to 205.00 °C. @ 760.00 mm Hg
Flash point - 148.00 °F. TCC ( 64.44 °C. )
Vapor pressure - 0.65 mm/hg @ 25C
Solubility in water - 1600 mg/L @ 25 °C
Odor - Camphoraceous

16.2 Toxicology

MSDS - https://www.sciencelab.com/msds.php?msdsId=9923284
https://pubchem.ncbi.nlm.nih.gov/compound/camphor
PEL - NA
TLV - NA
LD-50 Oral (LD50): 1310 mg/kg [Mouse]

Human Toxicology Values

Not a known carcinogen
Not a known mutagen
Not a know teratogen.
Special Remarks on Chronic Effects on Humans: May affect genetic material based on animal data. Passes through the placental barrier in human.

Special Remarks on other Toxic Effects on Humans:

Acute Potential Health Effects: Skin: Causes skin irritation. May cause epileptic seizures. Eye: Causes eye irritation.

May cause epileptic seizures. Inhalation: Causes irritation of the respiratory tract (mucous membranes)and may cause
emphysema.

May affect behavior - the brain and Central Nervous system (muscle contraction and spasticity).

May affect the heart. Ingestion: Cause irritation of the gastrointestional tract (nausea, vomiting.

May affect behavior - the brain and Central Nervous system (dizziness, convulsions, seizures, change of motor activity, rigidity). May be harmful if swallowed.

Certain medical conditions may be aggravated by exposure: kidney disorders, liver disorders, heart disorders, epilepsy. Chronic Potential Health Effects: none identified.
Non-Human Toxicology Values

(LD50): 1310 mg/kg [Mouse]

[WaterFarmFan]

Or perhaps this one? Both are listed as crystal structure? Would crystal float to the top in chilled water but stay below an oil layer? If I wanted to isolate the crystals, could I separate with a small amount of water and simply evaporate the liquid with low heat? Can you evaporate crystals or alter the compounds at lower temps (<60C)? Is this what flash point means?

21.0 Borneol aka Borneol; Isoborneol; 1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol; 507- 70-0; (+)-Borneol; (-)-Borneol

Borneol is an easily oxidized organic compound and terpene. It is found naturally in high-concentrations in plants such as camphor, rosemary, and some mint varieties.

Organoleptically it is herbal and camphoraceous. Borneol has a minty pine like taste but is cooling and
Fresh in the right proportions.

Essential oils containing Borneol have been used for centuries in traditional Chinese medicine as a moxa for acupuncture.

Traditionally borneol has been used as an analgesic (pain reliever), anti-fungal, antioxidant, antibacterial, and has been used traditionally for anti-fibrosis suggesting that it may help to regulate the body’s response to injuries. Additionally, it has been an ingredient selected to be formulated into certain natural insect repellants including flea and mosquito remedies.

21.1 Physical Properties

Chemical formula - C10H18 O
CAS - 507-70-0
Molar mass - 154.253 g/mol
Appearance - White to off white crystals
Density - 1.011 g/cm3 (20 °C)
Melting Point - 202 deg C
Boiling point - 212 deg C
Flash point - 150 deg F (60 deg C) /closed cup/
Vapor pressure - 0.035 mm/hg @ 25C
Solubility in water - 738 mg/L at 25 deg C
Odor - Piney, camphor-like odor

21.2 Toxicology

MSDS - https://www.fishersci.ca/store/msds?...countryCode=CA
.gov - https://pubchem.ncbi.nlm.nih.gov/compound/Borneol
PEL - NA
TLV - NA
LD-50 Oral - LD50 = 5800 mg/kg ( Rat

Human Toxicology Values

Not a known carcinogen
Not a known mutagen
Not a known teratogen
Not a known reproductive toxin
Non-Human Toxicology Values

LD50 = 5800 mg/kg ( Rat

[Gray Wolf]

I suspect that the white is a water soluble as opposed to an aromatic compound.

[WaterFarmFan]

Any thoughts on the classification of water soluble? Something volatile enough to evaporate without a solvent?

[WaterFarmFan]

Here is my best attempt yet to isolate it. Terpenes on top and white water soluble matter below. This was separated for ~16 hours at 2C. Is a picture worth 1000 words...

[Gray Wolf]

Originally Posted by WaterFarmFan

Any thoughts on the classification of water soluble? Something volatile enough to evaporate without a solvent?

There are non volatile water soluble salts present, as well as the C-15 flavanoids which are water soluble and volatile.

[WaterFarmFan]

Originally Posted by Gray Wolf

There are non volatile water soluble salts present, as well as the C-15 flavanoids which are water soluble and volatile.

If you would not mind enlightening me, how would non volatile salts go from ground flower material in vacuum oven to the condensing cold trap system?