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USA Lab
Ethanol 200 Proof, SDA 3A (100%)
in Alcohols
$15.00 - $2,000.00
In stockPrice varies by Size.
Specially denatured alcohol 3A at 200 proof: the safety data sheet gives ethanol (CAS 64-17-5) at 90-95 % w/v denatured with 1-5 % w/v methyl alcohol (CAS 67-56-1). Classified Flammable liquid category 2, Eye irritation category 2 and STOT single exposure category 1, signal word Danger. Designated by the manufacturer for industrial or commercial use only, and supplied from 1 quart to a 270 gallon tote.
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Description
SDA 3A is a specially denatured alcohol formula: 200 proof ethanol denatured with methanol. It is the standard choice where anhydrous ethanol is needed as a solvent, extractant or cleaning agent and the beverage-grade tax status of undenatured ethanol is not required.
Composition
- Ethanol – CAS 64-17-5 – 90-95 % w/v – Flam. Liq. 2, H225; Eye Irrit. 2, H319
- Methyl alcohol – CAS 67-56-1 – 1-5 % w/v – Flam. Liq. 2, H225; STOT SE 2, H370
Hazard identification
Classified under OSHA 29 CFR 1910.1200 as Flammable liquid category 2, Eye irritation category 2, and Specific target organ toxicity single exposure category 1. Signal word: Danger. Hazard statements: H225 highly flammable liquid and vapour; H319 causes serious eye irritation; H370 causes damage to organs (central nervous system, optic nerve) by inhalation. The methanol denaturant is what drives the H370 classification, so vapour control matters more with SDA 3A than with undenatured ethanol – handle in a fume hood or under equivalent local exhaust and wear appropriate eye protection.
Precautionary statements on the sheet include P210 (keep away from heat, hot surfaces, sparks, open flames and other ignition sources; no smoking), P220 and P221 (keep away from and avoid mixing with combustible materials), P264 (wash hands thoroughly after handling) and P305+P351+P338 for eye exposure. The manufacturer identifies the relevant use as industrial or commercial only, and advises against all other uses.
Volumes
Supplied in 1 quart, a four-quart case, 1 gallon, 5 gallon, 55 gallon drum and 270 gallon tote.
Frequently asked questions
What is SDA 3A denatured with?+
Methyl alcohol. The safety data sheet gives ethanol (CAS 64-17-5) at 90-95 % w/v and methyl alcohol (CAS 67-56-1) at 1-5 % w/v.
Is 200 proof the same as anhydrous?+
200 proof means the product is specified as 100 % alcohol by volume, as opposed to the 95 % of a 190 proof grade. The denaturant is present in addition to that alcohol content, at the 1-5 % w/v stated on the safety data sheet.
How does it differ from CDA 12-A?+
The denaturant. SDA 3A is denatured with methyl alcohol, which brings a STOT single exposure category 1 classification (H370, damage to the central nervous system and optic nerve by inhalation). CDA 12-A is denatured with n-heptane and carries the milder STOT SE 3 (H336). Where your process tolerates a hydrocarbon denaturant, CDA 12-A has the lower inhalation hazard profile.
What are the GHS hazards and signal word?+
Flammable liquid category 2 (H225), eye irritation category 2 (H319) and specific target organ toxicity, single exposure, category 1 (H370 - damage to central nervous system and optic nerve by inhalation). Signal word: Danger.
What use does the manufacturer designate?+
The safety data sheet states the relevant identified use is industrial or commercial use only, and advises against all other uses.
What container sizes are available?+
1 quart, a four-quart case, 1 gallon, 5 gallon, 55 gallon drum and 270 gallon tote.
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