Dichloromethane Specification Comparison

Sigma-Aldrich Dichloromethane Specifications Comparison
	CHROMASOLV Plus	CHROMASOLV for HPLC	Biotech	Anhydrous	ACS Spectro- photometric	ACS
Purity	≥99.9%	≥99.8%	99.9%	≥99.8%	≥99.5%	≥99.5%
UV Absorption
λ: 235 nm	≤1.00	≤0.70	≤1.00		≤1.00
λ: 240 nm	≤0.10	≤0.30	≤0.20		≤0.35
λ: 245 nm		≤0.10
λ: 250 nm	≤0.02		≤0.05		≤0.10
λ: 260 nm		≤0.01	≤0.02		≤0.04
λ: 300 nm	≤0.005
λ: 340 nm			≤0.01		≤0.01
λ: 400 nm	≤0.005		≤0.01		≤0.01
Total Impurities
Stabilizer	50-150 ppm Amylene	50-150 ppm Amylene	50-150 ppm Amylene	50-150 ppm Amylene	50-150 ppm Amylene	50 ppm Amylene
Water	≤0.01%	≤0.02%	≤0.002%	≤0.001%	≤0.02%	≤0.02%
				≤0.005% (100mL)
Evaporation Residue	≤0.0001%	≤0.001%	≤0.0003%	≤0.0005%	≤0.002%	≤0.002%
Halogenated Residue	≤10 ng/L (as Heptachlor epoxide)				Passes Test	Passes Test
Fluorescence 365 nm	≤1.0 ppb
Titratable acid		≤0.001% free acid (as HCL)			≤0.0003 meq/g	≤0.0003 meq/g
Free Halogens					Passes Test	Passes Test
Packaging Options
	CHROMASOLV Plus	CHROMASOLV for HPLC	Biotech	Anhydrous	ACS Spectro- photometric	ACS
Glass Bottle	650463	34856			154792	D65100
PVC Coated Bottle		439223				320269
Sure/Seal™			494453	270997
Aluminum Bottle						676853
Pure-Pac™		34856		270997
Carbon Steel						D65100
Drum		439223				D65100

For a complete list of all available unit sizes and product specifications,
simply click on the product numbers above!