Leader in the development and revision of international and industry standards Industry standards: HG/T 3266-2019 international standard: ISO 7431-1:2024、ISO 7431-2:2024
Electronic-grade thiourea/Thiourea for industrial use
White crystalline powder
Appearance
≤1
Fe,ppm
≤1
Na,ppm
≤1
Mg,ppm
≤1
Ca,ppm
≤10
Heavy metal(Pb),ppm
≤0.002
Water-insoluble substance,wt%
≥99.2
Content,wt%
White crystalline powder
Appearance
≥171
Intial melting point,°C
≤0.10
Ignition residue,wt%
≤0.02
Thiocyanate,wt%
≤0.02
Water-insoluble substance,wt%
≥99.0
Content,wt%
Precious metal extraction
Resin material
Pharmaceutical and pesticide intermediates
Electroplating
Water treatment agent
2-MERCAPTOETHANOL
Specification
≤0.3
Moisture,wt%
≤10
APHA Color
≥99.5
Content,wt%
Polycarboxylate superplasticizer
Synthetic optical resin
PVC heat stabilizer
Reactive dye
Pesticide intermediates
3-MERCAPTOPROPIONIC ACID
Specification
Colorless transparent liquid
Appearance
≤10
APHA Color
≥99.5
Content,wt%
Synthetic optical resin
Polycarboxylate superplasticizer
Pharmaceutical intermediates
HYDROGEN SULFIDE
Specification
≥99.9
Hydrogen sulfide purity(volume fraction)/10-2
Extreme pressure and anti-wear additives for synthetic lubricating oil
Bactericide
Anti-counterfeiting coating and infrared imaging
Green sulfur-containing chemical solutions for a better life of mankind!
