| Spec:Premium grade ,medicine grade,spectrographic grade ,food grade,electrical grade.)
Properties:Colorless transparent odorless liquid with little bitter, low toxic.
Usage:The organic synthetic solvent of pesticide, dyestuff, pharmaceutical intermediate: arene extraction, refine paraffin, refine diesel oil, electronic component washing, gas absorption, rare metal leach, medium antifreeze agent, material of hydraulic fluid , accelerant , fertilizer;disinfection, calm, diuresis. Suitable for arthritis , dermatitis, dermatophytosis, psoriasis, strain and knub etc.
Storage:Seal, avoid insolation and moisture, crystal under 18 .
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1. The introduction of DMSO
1)The uses of industrial-grade DMSO: mainly used as solvent in water-free organic chemical synthesis and pharmaceutical and intermediate synthesis reaction. It can improve the reaction speed, improve the yield of reactant, shorten the reaction time and make reaction easier to take place.
The quality and technical index:
Item Index Standard
Content(as DMSO), % : ≥ 99．8 GB/T2307-1986
Crystallization point, ℃: ≥ 18．10 GB/T7533-1993
Acid value (0.1N/ml NaOH/50g): ≤ 0．01 GB/T9736-1988
Moisture, %: ≤ 0．1 GB/T6283----86
Evaporation residue, PPM: ≤ 5. GB/T3209----82
Heavy metals, %: ≤ 10. GB/T7532----87
Packing: PE plastic barrel, 225kgs, 100kgs, 50kgs, 25kg
2)The uses of medical-grade DMSO: mainly used as solvent in pharmaceutical and intermediate synthesis reaction, as medical solvent and the carrier of drugs. It can improve the reaction speed and improve the yield of reactant.
The quality and technical index:
Item Index Standard
Content(as DMSO), %: ≥ 99.9 GB/2307-1986
Crystallization point, ℃: ≥ 18.3 GB/T7533-1993
Refractive index: 1.478~~1.479 GB/T6488-1986
Moisture, %: ≤ 0.01 GB/T6283-1986
UV extinction value: 275nm ≤ 0.3 GB 9721-1988
285nm ≤ 0.2
295nm ≤ 0.2
Heavy metals, ppm: ≤ 10 GB/7532-1987
Specific gravity(20℃): 1.100-1.104 GB/4472-1984
Acid value(0.1N/ml NaOH/50g): ≤ 5.0 GB/9736-1988
Packing: PE plastic barrel, 225kgs, 100kgs, 50kgs, 25kgs
3)The uses of anhydrous-grade DMSO: mainly used as solvent in pharmaceutical and intermediate synthesis reaction, as medical solvent and the carrier of drugs. It can improve the reaction speed and improve the yield of reactant.
The quality and technical index:
Item Index Standard
Content(as DMSO), %: ≥ 99.9 GB/2307---1986
Crystallization point, ℃: ≥ 18.35 GB/T7533-1993
Acid value(mgKOH/g): ≤ 0.001 GB/T9736-1988
Refractive index(20℃): 1.478―1.479 GB/6488---1986
Moisture, %: ≤ 0.001 GB/6283--1986
Evaporation residue, PPM: ≤ 5. GB/T3209----82
Heavy metals, %: ≤ 10. GB/T7532----87
Packing: PE plastic barrel, 225kgs, 100kgs, 50kgs, 25kgs
4)The uses of external-medical-grade DMSO: DMSO itself has the functions of acesodyne, detumescence and dissolving extravasated blood, and is especially effective to skin diseases. It is mainly used as pharmaceutical additive and the carrier of drugs.
The quality and technical index:
Item Index Standard
Content(as DMSO), %: ≥ 99.9 GB/2307-1986
Crystallization point, ℃: ≥ 18.3 GB/T7533-1993
Refractive index: 1.478-1.479 GB/T6488-1986
Moisture, %: ≤ 0.2 GB/T6283-1986
UV extinction value: 275nm ≤ 0.3 GB 9721-1988
285nm ≤ 0.2
295nm ≤ 0.2
Heavy metals, ppm : ≤ 10 GB/7532-1987
Specific gravity (20℃): 1.100-1.104 GB/4472-1984
Acid value(0.1N/ml NaOH/50g): ≤ 5.0 GB/9736-1988
Packing: PE plastic barrel, 225kgs, 100kgs, 50kgs, 25kgs
5)The uses of reagent-grade DMSO: DMSO is used as solvent in liquid chromatography, also used as referenced matter in measuring the UV extinction value of matter, existing as liquid state.
The quality and technical index:
Item Index Standard
Content(as DMSO) %: ≥ 99．9
Acid value(MEQ/G): ≤ 0．001
Moisture, %: ≤ 0．10
Evaporation residue, %: ≤ 0．01
UV extinction value: 356-400nm， ≤ 0．010
330nm， ≤ 0．02
310nm， ≤ 0．06
290nm， ≤ 0．18
270nm， ≤ 0．46
Packing: PE plastic barrel, 225kgs ,100kgs, 50kgs, 25kgs |
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