Pure 99% Thiourea Powder Anhydrous Recommended Reduce Oil Oxygen Content

Industrial Grade 99% Thiourea recommended for reducing oil oxygen content in various industrial applications.

Attribute	Value
CAS	62-55-6 | 65-56-6
EINEFCS	200-543-5
Appearance	White crystal
Crystalline hydrate	Anhydrous
Life Span	Two years
Molecular weight	76.121
Chemical formula	CH4N2S

• Appearance: White crystal powder
• Density: 1.405
• Molecular weight: 76.12
• Melting point: 171-175℃
• Boiling point: 349 to 352°F (NTP, 1992)

CAS: 62-56-6
Products meets GB/8218-2018:

No.	Items for detecting and analyzing	Standard value
1	Thiourea (CS(NH2)2) ％≥	99.0
2	Heating interval ％≤	0.35
3	Chemical moisture ％≤	0.01
4	Water insoluble ％≤	0.02
5	Thiocyanate (CNS) ％≤	0.02
6	Melting point (centigrade)	171 OC

References: Riel Chemical Lab1&2, National public service platform for standards information.

• Corrosion inhibitor: Inhibit metal oxidation in acid gold plating and silver plating solution to improve coating uniformity (such as PCB circuit board gold plating process)
• Brightener: Combines with silver ions to form a complex to enhance the gloss of the coating (a key additive in the jewelry processing industry)

• Antioxidants: Prevent dye oxidation and fading, improve the color fastness of cotton and silk fabrics (0.5-2%)
• Flame retardant treatment: Combined with phosphate, used for flame retardant modification of polyester fiber

• Inhibition of fungal spore germination (e.g. control of rice blast), bactericidal by interfering with bacterial sulfur metabolism
• Promote the breaking of dormancy of tuber crops (potatoes, sweet potatoes) and increase germination rate (0.1% solution soaking treatment)

• Synthesis of anti-thyroid drugs (e.g., methimazole), anti-HIV drugs (e.g., tenofovir intermediates)
• Sulfur sources in radiopharmaceutical labeling (e.g. ⁹⁹mTc labeled developer)

• Protein denaturant (concentration 2-4M for urea-thiourea double denaturation electrophoresis)
• DNA/RNA stabilizers (prevent nuclease degradation, for cryogenic sample preservation)

• Formation of complex precipitate with cadmium (Cd²+) and lead (Pb²+) (removal rate > 95% at pH 6-8)

• Lithium sulfur battery electrolyte additive, inhibition of polysulfide shuttle effect (2025 Ningde era patent technology)
• Used as an interface passivator in perovskite solar cells, increasing the photoelectric conversion efficiency to 26.8%