SteveElektro
Bluelighter
- Joined
- Apr 8, 2002
- Messages
- 5,438
^^ I agree, that statement is ridiculous and could be applied to cars with equal validity. Responsibility rests with the user.
I know that if I worked for a butcher and I sold someone bad meat which made them end up in hospital i would be pretty upset.
The probabilty of this happening regarding the consumption of ghb is far more likely to occur
syntech said:from what i've heard u cant actually get GHB in aus, only 1,4B......
thats why u gotta wait 2 hours between doses cos its gotta get converted to GHB in ur system, whereas GHB doesnt do that and has no load on the liver whatsoever.....
hmmm
The main use of butyrolactone is as an intermediate in the synthesis of N-methylpyrrolidone (NMP) [23], pyrrolidone [24], herbicides (e.g., MCPB = g-2-methyl-4-chlorophenoxybutyric acid) [25], growth regulators (e.g., a-(4-methylbenzylidene)-g-butyrolactone [5418-24-6] [26]), a-acetobutyrolactone (a vitamin B1 intermediate) [27], and the rubber additive thiodibutyric acid [28]. Butyrolactone is used as a solvent for polymers [29], [30] and as a polymerization catalyst [31]; in hairwave compositions [32] and sun lotions [33]; and in pharmaceuticals [34]. It is also used in printing inks, e.g., for ink-jet printing [35], as an extractant in the petroleum industry [36], as a stabilizer for chlorohydrocarbons [37] and phosphorus-based pesticides [38], and as a nematocide [39]. More recent applications are in the electronics field as a cosolvent for capacitor electrolytes [40] and as a cosolvent for photoresists [41].
AGRISYNTH® BLO
DESCRIPTION
y-butyrolactone
PROPERTIES
Physical Form clear liquid
Boiling Point 204°C
Freezing Point -44°C
Flash Point (open cup) 98°C
Density (25°C) 1.12 g/cm3
Viscosity (25°C) 1.7mPa.s
Completely miscible with water, methanol, acetone, benzene, carbon tetrachloride, ethyl ether, monochlorobenzene.
Insoluble in aliphatic hydrocarbons.
Liquid over a wide temperature range.
Easily recoverable, non-corrosive solvent.
Low fire hazard.
Reacts with bases, alcohols, thio compounds, halogen acids, amines, cyclic compounds, etc. to give derivatives of butyric acid; by aldol condensation to form oxetone; with cyanide to form glutarimide.
APPLICATIONS
Formulation Solvent: Outstanding solvent for many active ingredients.
Herbicides: Starting material for the manufacture of 2, 4-dichlorophenoxybutyric acid and 2-methyl-4-chlorophenoxybutyric acid which as their amine salts are the herbicides 2,4-DB and MCPB. Intermediate for the manufacture of 2-chloro-23-63 -diethyl-N- (methoxymethyl)- acetanilide, a herbicide for controlling annual grasses and broadleaf weeds.
Insecticides: The reaction products of halobutyrolactones with many different types of inorganic and organic sulphur containing compounds, can be used as insecticides, e.g. 0,0-dimethyl 0-(3,5,6-trichloro-2 pyridyl) - phosphorothioate, a soil insecticide for control of wireworms, corn rootworms, cutworms and maggots; 0.0-dimethyl S-(4-oxo-1,2,3-benzo-triazon-3(4H)-yl)methyl) phosphorodithioate, an insecticide for use on a wide variety of fruit, vegetable, nut, melon and field crops. Stabilizes urea in fertilizer formulations.
AGRISYNTH® PA
DESCRIPTION
2-propyn-1-ol
HC=C-CH2OH
PROPERTIES
Physical Form liquid
Boiling Point 115°C
Freezing Range -48°C to -52°C
Flash Point (open cup) 36°C
Density (25°C) 0.95 g/cm3
Viscosity (20°C) 1.68mPa.s
Completely miscible with water, ethanol, ethyl ether, acetone, benzene, chloroform, dioxane, pyridine.
Immiscible with aliphatic hydrocarbons.
Three centres of reactivity: primary hydroxyl group, methine, hydrogen, and triple bond.
Undergoes esterification, etherification, typical addition reactions, oxidative coupling; reacts with aldehydes, amines, Grignard reagents, halogens; forms cyclic acctals.
APPLICATIONS
Insecticides: Intermediate for propargite 2-(4-(1, 1-dimethylethyl) phenoxy)-cyclohexyl-2-propynyl sulphite, a miticide.
AGSOLEX® BLO
DESCRIPTION
y-butyrolactone
PROPERTIES
Physical Form clear liquid
Boiling Point 204°C
Freezing Point -44°C
Flash Point (open cup) 98°C
Density (25°C) 1.12 g/cm3
Viscosity (25°C) 1.7mPa.s
Completely miscible with water, methanol, acetone, benzene, carbon tetrachloride, ethyl ether, monochlorobenzene.
Insoluble in aliphatic hydrocarbons.
Liquid over a wide temperature range.
Thermally stable, easily recovered, noncorrosive solvent.
Low fire hazard. Biodegradable.
EPA Status: AgsolEx BLO is exempt from tolerance for preharvest use under 40 CFR 180.1001 (d); on EPA List 3 (environmental safety) and List 4 (health).
APPLICATIONS
Formulation Solvent: Powerful solvent for a wide range of active ingredients. Can be used to formulate technical concentrates, emulsifiable concentrates and microemulsions.
Synthesis Medium: Used as a synthesis solvent in many pesticide reactions.
Fertilizer Stabilizer: When mixed with urea prevents ammonia production and maintain neutral pH.
Cleaning Agent: For chemical reactors.
Material Safety Data Sheet
Main Ingredient in Model XXXX* Coolant
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SECTION 1 - PRODUCT INFORMATION
Product ID: NCI 598061 1,4 BUTANEDIOL
Common Chemical Name: 1,4 - Butanediol
Synonyms: 1,4 Butylene Glycol
Molecular Formula: HOCH (2) CH (2) CH(2) CH(2) OH
Molecular Wt: 90.1
Chemical Family: Glycol
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SECTION 2 - INGREDIENTS
Chemical Name: Butanediol HP
CAS #: 110-63-4
Amount: 100%
PEL/TLV Data: Not established
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SECTION 3 - PHYSICAL PROPERTIES
Color: Colorless
Form/Appearance: Oily Liquid
Odor: Nearly odorless
Odor Intensity: None
Spc. Gravity: 1.015
pH: 7-8 su
Boiling Pt: 229° C @ 1 atmosphere pressure
Freezing Pt: <19° C @1 atmosphere pressure
Decomp. Tmp: Not Available
Solubility in Water Description: Miscible
Vapor Pressure: <1 Millibars @ 20° C
Vapor Density: 3.1
--------------------------------------------------------------------------------
SECTION 4 - FIRE AND EXPLOSION DATA
Flash Pt: 134° C Method: DIN 51 758
Autoignition: 370° C Method: None specified
Extinguishing Media: Use water fog, foam or dry chemical extinguishing media.
Fire Fighting Procedures: Firefighters should be equipped with self-contained breathing apparatus and turn out gear.
Unusual Hazards: Low when exposed to heat or flames. It can react with oxidizing material.
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SECTION 5 - HEALTH EFFECTS
Routes of entry for solids and liquids include eye and skin contact, ingestion and inhalation. Routes of entry for gasses include inhalation and eye and skin contact.
Toxicology Test data:
Rat, Oral LD50-1500 MG/KG Moderately Toxic
Rat, Dermal LD50 - >2000 MG/KG Slightly Toxic
Rabbit, Primary Skin Irritation - Nonirritating
Rabbit, Eye Irritation (unrinsed) - Nonirritating
Acute Overexposure Effects: Contact with the eyes and skin may result in slight irritation. If ingested, 1,4-butanediol is a depressant. Symptoms of acute overexposure include deep narcosis, constriction of pupils, and loss of reflexes. Damage to the kidneys has also been reported after ingestion.
Chronic Overexposure Effects: There are no known chronic effects associated with this material.
First Aid Procedures - Skin: Wash affected areas with soap and water. Remove and launder contaminated clothing before reuse. If irritation develops, get medical attention.
First Aid Procedures - Eyes: Immediately wash eyes with running water for 15 minutes. If irritation develops, get medical attention.
First Aid Procedures - Ingestion: If swallowed, dilute with water and immediately induce vomiting. Never give fluids or induce vomiting if the victim is unconscious or having convulsions. Get immediate medical attention.
First Aid Procedures - Inhalation: Move to fresh air. Aid in breathing, if necessary, and get immediate medical attention.
First Aid Procedures - Notes to Physicians: None known.
First Aid Procedures - Aggravated Medical Conditions: No data is available which addresses medical conditions that are generally recognized as being aggravated by exposure to this product. Please refer to Section 5 (Effects of Overexposure) for effects observed in animals.
First Aid Procedures - Special Precautions: None
Properties, Uses, Storage and Handling of
DuPont Glycols
polyether glycol
Terathane®
e Terathane® PTMEG/1,4-Butanediol
Product Information
Terathane® polyether glycol is polytetramethylene
ether glycol (PTMEG). It is a waxy, white solid that
melts to a clear, colorless liquid over a wide
temperature range near room temperature. DuPont
1,4-butanediol also melts at room temperature to a
liquid that is similar to Terathane® 650 in viscosity
and refractive index.
DuPont manufactures PTMEG in seven molecular
weights: Terathane® 250, 650, 1000, 1400, 1800,
2000 and 2900. Other molecular weights can be
made on special order; for further information,
customers may contact DuPont as shown on the
back cover.
Terathane® is a blend of linear diols in which the
hydroxyl groups are separated by repeating
tetramethylene ether groups. For example,
Terathane® 1000 is HO(CH2CH2CH2CH2O)nH,
where n averages 14. For Terathane® 2000, n
averages about 27. Butanediol has the same formula,
where n = 1: HOCH2CH2CH2CH2OH.
The Chemical Abstracts Service covers Terathane®
under two names: furan, tetrahydro, polymer (CAS
Registry Number 24979-97-3) and poly(oxy-1,4-
butanediyl)-a-hydro-w-hydroxyl (CAS Registry
Number 25190-06-1). The TSCA inventory lists
only the latter number. The CAS Registry Number
for 1,4-butanediol is 110-63-4.
Physical Properties
Table 1 lists Specifications and Typical Analyses
for butanediol and the five grades of Terathane®.
Figure 1 shows the effect of temperature on viscosity
for Terathane® and 1,4-butanediol. The effect of
temperature on density is shown in Figure 2.
Butanediol and Terathane® polyether glycols are
readily soluble in alcohols, esters and ketones, but
they are insoluble in aliphatic hydrocarbons.
Terathane® polyether glycols will also dissolve in
aromatic and chlorinated hydrocarbons, but are
insoluble in water. Butanediol is soluble in water,
but insoluble in aromatic and chlorinated hydrocarbons.
The solubility of Terathane® in functional
solvents decreases as the length of aliphatic chains
increases; e.g., Terathane® is completely miscible
with methanol, but insoluble in dodecanol.
Terathane® 1000 will dissolve to about 20% in
1,4-butanediol at 25°C (77°F), but Terathane® 2000
dissolves less than 10%.
These glycols are all hygroscopic. At room temperature,
Terathane® can absorb up to 2% water, depending
on the molecular weight. Terathane® 250 is
mostly miscible with water.
Chemical Reactions
Terathane® polyether glycols and butanediol are
dihydric alcohols and undergo the reactions
typical of the hydroxyl group. The two commercially
significant reactions are esterification with
carboxylic acids and formation of urethanes with
isocyanates. Reaction with acrylic acids results in
the addition of a vinyl group that can be subsequently
crosslinked.
Stability
Terathane® polyether glycols contain oxidation
inhibitors. After storage under nitrogen for one year
at 70°C (158°F), Terathane® polyether glycols still
meet production specifications. Butanediol is also
indefinitely stable in sealed containers.