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Chromic acid

Product Name
Chromic acid
CAS No.
7738-94-5
Chemical Name
Chromic acid
Synonyms
Cromic acid;CHROMIC ACID;Chromic acid USP/EP/BP;TIANFU-CHEM Chromic acid;dihydroxy(diketo)chromium
CBNumber
CB52130391
Molecular Formula
H2CrO4
Formula Weight
118.01
MOL File
7738-94-5.mol
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Chromic acid Property

Melting point:
196°C
Density 
2.290
solubility 
Methanol (Slightly)
form 
Liquid
color 
Clear, orange
PH
3.03(1 mM solution);2.33(10 mM solution);2.06(100 mM solution)
Water Solubility 
HIGHLY Soluble
EPA Substance Registry System
Chromic(VI) acid (7738-94-5)
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Safety

RIDADR 
UN 1463/1755
Hazardous Substances Data
7738-94-5(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H317May cause an allergic skin reaction

H350May cause cancer

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P321Specific treatment (see … on this label).

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P363Wash contaminated clothing before reuse.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TRC
Product number
C432850
Product name
ChromicAcid
Packaging
200mg
Price
$110
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
ING0003953
Product name
CHROMIC ACID
Purity
95.00%
Packaging
250G
Price
$2933.26
Updated
2021/12/16
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Chromic acid Chemical Properties,Usage,Production

Description

Chromic acid, CrO3, is composed of dark, purplish-red, odorless crystals that are soluble in water. The specific gravity is 2.7, which is heavier than water. It is a powerful oxidizing agent and may explode on contact with organic materials. Chromic acid is a poison, corrosive to the skin, and has a TLV of 0.05 mg/m3 of air. Chromic acid is a known human carcinogen. The four-digit UN identification number is 1463. The NFPA 704 designation is health 3, flammability 0, and reactivity 1. The white section at the bottom of the 704 diamond has an “oxy” prefix, indicating that it is an oxidizer.

Chemical Properties

Chromic acid is a dark purplish-red odorless flakes or crystalline powder

Uses

Chemicals (chromates, oxidizing agents, catalysts), chromium-plating intermediate, medicine (caustic), process engraving, anodizing, ceramic glazes, colored glass, metal cleaning, inks, tanning, paints, textile mordant, etchant for plastics.

Definition

The name is in common use, although the true chromic acid, H2CrO4, exists only in solution.

Definition

chromic acid: A hypothetical acid,H2CrO4, known only in chromatesalts.

General Description

Chromic acid is a dark purplish red solid, exists only in solution. The hydrate of chromiumoxide, it is used in electroplating baths. Chromic acid is soluble in water with the release of heat. The material itself is noncombustible but Chromic acid will accelerate the burning of combustible materials. Its solution is corrosive to metals and tissue.

Air & Water Reactions

Water soluble.

Reactivity Profile

A very powerful oxidizing agent, confirmed human carcinogen. Upon contact with reducing reagents Chromic acid can cause a violent explosion, in contact with organic matter Chromic acid may cause a violent oxidation leading to ignition. Dangerously reactive with acetone, alcohols, alkali metals (sodium, potassium), ammonia, arsenic, dimethylformamide, hydrogen sulfide, phosphorus, peroxyformic acid, pyridine, selenium, sulfur, and many other chemicals [Sax, 9th ed., 1996, p. 852]. When mixed with sulfuric acid for glass cleaning operations, used solution in closed bottle may explode due to internal pressure of carbon dioxide arising from contamination by carbon compounds [Bryson, W. R., Chem. Brit., 1975, 11, p. 377].

Hazard

A human carcinogen. A poison. Corrosive to skin. Powerful oxidizing agent, may explode on contact with reducing agents, may ignite on contact with organic materials. Upper respiratory tract irritant.

Health Hazard

Very irritating to eyes and respiratory tract. Ingestion causes severe gastrointestinal symptoms. Contact with eyes or skin causes burns; prolonged contact produces dermatitis (``chrome sores'').

Fire Hazard

Behavior in Fire: Containers may explode

Safety Profile

Confirmed human carcinogen. Poison by subcutaneous route. Mutation data reported. A powerful oxidzer. A powerful irritant of skin, eyes, and mucous membranes. Can cause a dermatitis, bronchoasthma, “chrome holes,” damage to the eyes. Dangerously reactive. Incompatible with acetic acid, acetic anhydride, tetrahydronaphthalene, acetone, alcohols, alkali metals, ammonia, arsenic, bromine penta fluoride, butyric acid, n,ndimethylformamide, hydrogen sulfide, peroxyformic acid, phosphorus, potassium hexacyanoferrate, pyridme, selenium

Potential Exposure

n chromium plating; medicine, ceramic glazers, and paints.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seekmedical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water ormilk. Do not induce vomiting. Medical observation isrecommended for 2448 h after breathing overexposure, aspulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consideradministering a corticosteroid spray

storage

Color Code—Yellow: Reactive Hazard; Store in alocation separate from other materials, especially flammables and combustibles. Color Code—Blue: HealthHazard/Poison: Store in a secure poison location. Prior toworking with chromic acid you should be trained on itsproper handling and storage. Store in tightly closedcontainers in a cool, well-ventilated area away from acetone, combustible, organic or other readily oxidizable material (such as paper, wood, sulfur, aluminum, and plastics).Sources of ignition, such as smoking and open flames, areprohibited where Chromic acid is used, handled, or storedin a manner that could create a potential fire or explosionhazard. A storage hazard; sealed containers may burst fromcarbon dioxide release. Store in tightly closed containers ina dry, cool, well-ventilated place with nonwood floors.Keep away from combustible materials; alcohols; and acetone. Where possible, automatically transfer chromic acidfrom drums or other storage containers to process containers. Containers may explode in fire. See OSHA Standard1910.104 and NFPA 43A Code for the Storage of Liquidand Solid Oxidizers for detailed handling and storage regulations. A regulated, marked area should be establishedwhere this chemical is handled, used, or stored in compliance with OSHA Standard 1910.1045

Shipping

UN1463 Chromium trioxide, anhydrous, Hazard Class: 5.1; Labels: 5.1-Oxidizer, 6.1-Poisonous materials, 8-Corrosive material. UN1755 (solution) Chromic acid, solid, Hazard class: 8; Labels: 8-Corrosive material.

Incompatibilities

A strong oxidizer. Aqueous solution is strongly acidic. Reacts with acetic acid, acetic anhydride, acetone, anthracene, chromous sulfide; diethyl ether; dimethyl formamide; ethanol, hydrogen sulfide; methanol, naphthalene, camphor, glycerol, potassium ferricyanide, pyridine, turpentine, combustibles; organics, and other easily oxidized materials (such as paper, wood, sulfur, aluminum, and plastics). Attacks metals in presence of moisture

Waste Disposal

Chemical reduction to chromium(III) can be followed by land fill disposal of the sludge.

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Chromic acid Suppliers

Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9664
Advantage
60
Chizhou Kailong Import and Export Trade Co., Ltd.
Tel
Fax
-
Email
xg01_gj@163.com
Country
China
ProdList
9503
Advantage
50
Shanghai Orgchem Co.,Ltd.
Tel
+86-21-5877 1921
Fax
+86-21-5877 1925
Email
info@chemofchina.com
Country
China
ProdList
9661
Advantage
55
UHN Shanghai Research & Development Co., Ltd.
Tel
021-58958002 18930822973
Fax
021-58958618
Email
xiaoyangw@gmail.com
Country
China
ProdList
2129
Advantage
58
Hefei TNJ Chemical Industry Co.,Ltd.
Tel
0551-65418671
Fax
0551-65418697
Email
sales@tnjchem.com
Country
China
ProdList
34572
Advantage
58
Dideu Industries Group Limited
Tel
+86-29-89586680 +86-15129568250
Email
1026@dideu.com
Country
China
ProdList
29831
Advantage
58
Dayang Chem (Hangzhou) Co.,Ltd.
Tel
571-88938639 +8617705817739
Fax
+86-571-88938652,+86-571- 88492614
Email
info@dycnchem.com
Country
CHINA
ProdList
52867
Advantage
58
Hubei xin bonus chemical co. LTD
Tel
86-13657291602
Fax
027-59338440
Email
linda@hubeijusheng.com
Country
CHINA
ProdList
22968
Advantage
58
Shanghai Guanghua Technology Co., Ltd
Tel
021-51098368
Fax
010-62373998
Email
chemol@hi2000.com
Country
China
ProdList
400
Advantage
58
Shanghai Yanze Chemical Co., Ltd.
Tel
13773155751; 19962611955
Email
260924549@qq.com
Country
China
ProdList
8507
Advantage
58
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View Lastest Price from Chromic acid manufacturers

Dideu Industries Group Limited
Product
Chromic acid 7738-94-5
Price
US $1.10/g
Min. Order
1g
Purity
99.9%
Supply Ability
100 Tons min
Release date
2021-07-22
Shaanxi Dideu Medichem Co. Ltd
Product
Chromic acid 7738-94-5
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99.0%
Supply Ability
600 Tons
Release date
2020-05-03
Career Henan Chemical Co
Product
Chromic acid 7738-94-5
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
300kg
Release date
2019-12-25