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Chromic acid CAS No.;1333-82-0 supplier Hangzhou Shitai Biotech
May 08, 2018

Chromium trioxide is an inorganic compound with the formula CrO3. It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. This compound is a dark-purple solid under anhydrous conditions, bright orange when wet and which dissolves in water concomitant with hydrolysis. Millions of kilograms are produced annually, mainly for electroplating. Chromium trioxide is a powerful oxidiser and a suspected carcinogen.


PRODUCT   NAME

Chromic   acid

CAS   No.:

1333-82-0

Synonyms:

Chromic anhydride;

Chromium Oxide;

Formula:

CrO3

Molecular   Weight:

99.92530

PSA:

51.21000

LogP:

-0.35640

 

Structure

image.png                         

 

Description

Appearance   & Physical State:

dark   red crystals or powder

Density:

2.7g/cm3

Melting   Point:

196ºC

Freezing   Point:

170~172℃

Boiling   Point:

330ºC

Flash   Point:

250ºC

Water   Solubility:

Highly   soluble

Stability:

Stable.   Strong oxidizer. Reacts with most organic material in a violent and often   explosive fashion. Moisture sensitive.

Storage   Condition:

Do   not store near combustible materials. Store in a tightly closed container.   Store in a cool, dry, well-ventilated area away from incompatible substances.   Corrosives area.

Symbol:

http://or.molbase.net/themes/pic/images/GHS03.png
  GHS03
http://or.molbase.net/themes/pic/images/GHS05.png
  GHS05
http://or.molbase.net/themes/pic/images/GHS06.png
  GHS06
http://or.molbase.net/themes/pic/images/GHS08.png
  GHS08
http://or.molbase.net/themes/pic/images/GHS09.png
  GHS09

Sign:

Danger

hazard   declaration:

H271; H301 + H311; H314; H317; H330; H334; H340;   H350; H361f; H372; H410

hazard   declaration add:


waring   notice:

P201;   P210; P260; P280; P284; P301 + P310 + P330; P303 + P361 + P353; P304 + P340 +   P310; P305 + P351 + P338; P308 + P313; P371 + P380 + P375; P403 + P233

RTECS:

GB6650000

Hazard   Class:

5.1

Safety   Statements:

S45-S53-S60-S61

HS   Code:

2819100000

Packing   Group:

II

WGK   Germany:

3

RIDADR:

UN   1463

Risk   Statements:

R24/25;   R26; R35; R42/43; R45; R46; R48/23; R50/53; R62; R9

Hazard   Codes:

O;   T+; N

 

Certificate of Analysis

 

ProductName: Chromic acid

Cas:        1333-82-0

Batch No.:     20110918

MFG Date:  Sep. 18.2011

Analysis Date: Sep. 18.2011

 

Inspect   Item

Quantity   Standard

Inspection   Result

Cr2O3

99.7%MIN

99.811%

SO4

0.06%MAX

0.042%

Water   Insoluble

0.02%MAX

0.007%

Na

0.05%MAX

0.031%

Cl

/

0.015%

Conclusion  

In   accordance with enterprise standard


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