98% chromium sulfate potassium for metal surface treatment tanning agent

Chromium potassium sulfate

Chinese alias: potassium chromium sulfate, chrome alum, chrome alum, potassium chrome alum

English name Chromium Potassium Sulfate dodecahydrate

Chemical formula: CrK(SO4)2·12H2O

Molecular weight: 499.40

CAS NO. 7788-99-0

HS CODE: 28333090

character

Fuchsia to black octahedral crystals.Ruby red in transmitted light.Weathering in the air.100 ℃ when lose 10 crystallization water molecules, 400 ℃ lost all the water of crystallization.Soluble in 4 parts cold water and 2 parts boiling water, almost insoluble in ethanol.The aqueous solution is purple when cold and green when hot.Relative density (d25)1.83.Melting point is 89 ℃.Median lethal dose (rat, venous) was 112mg/kg.It's stimulating.Cr is trivalent. Electronic products are limited to one part per million.

use

Chrome plating on media, flexible leather, petroleum, photographic fixing, bicycles, sewing machines, semi-steel watches, torches, daily hardware parts, instruments and meters, etc.Also used for wood corrosion, electrolytic polishing (aluminum cover, aluminum box, aluminum pen) electrolytic manufacturing of metal chromium.

Inspection result (%)

CrK (SO4) 2 · h2o: 98.35

NH4:0.01%

Pb: 0.002%

Al: 0.002%

Fe: 0.005

Cl: 0.002

Water - insoluble: 0.005%

Company profile

         Shanghai LiangRen chemical co., LTD., founded in 1987, is located in Shanghai, jiading district, specializing in the production of chromate, copper, nickel salt, cobalt salt and other products.

          High investment guide, advanced production equipment, and high salary to hire technicians, strict quality control, cluster technology co., ltd. in Shanghai normal university of China physics and chemical application technology research, regular testing, stable and reliable product quality.

          Our factory is based on good faith, mutual benefit and common development. We sincerely look forward to cooperating with both old and new customers.

 prodcuct inventory:

Matters needing attention

 Hazard: eyes, respiratory and skin stimulating.After inhaling cause cough, shortness of breath.Oral cause abdominal pain, vomiting, etc.

 first aid measures

Skin contact:   remove contaminated clothing and water with soap and water to thoroughly flushed the skin.
Eye contact:   mention eyelid, irrigate with flowing water or normal saline.Go to a doctor.
Inhalation:   quickly from the scene to fresh air.Keep respiratory tract unobstructed.Such as difficulty in breathing, give oxygen.If breathing stops, artificial respiration immediately.Go to a doctor.

Eating:   drink enough water, vomiting.Go to a doctor.
Fire extinguishing methods:   firefighters must wear filter type gas mask (full-face) or isolation respirator, worn a fire protective clothing, in the upper hand in the fire.Don't shoot water straight into the melt, lest cause serious flow caused by fire or violent boiling splash.Agent: fog water and sand.

Contact us:

Telephone:18869741853

 Micro letter: