Safety Data Sheet - Potassium dichromate

SECTION 1: Identification of the substance/mixture and of the company/undertaking

Chemical Name Potassium dichromate

Product Form Substance

Catalogue No. AL3683

CAS Number 7778-50-9

EC Number 231-906-6

EC Index Number Cr(IV)

Grade Extra Pure

HSN Code 28415090

Molecular Formula K2Cr2O7

SECTION 1: Identification of the substance/mixture and of the company/undertaking

1.1 Product identifier

Chemical Name Potassium dichromate

Catalogue No. AL3683

Product form Substance

CAS Number 7778-50-9

EC Number 231-906-6

Grade Extra Pure

EC Index Number Cr(IV)

Chemical Formula K2Cr2O7

HSN Code 28415090

Synonyms Dichromic acid, dipotassium salt

Chemical Structure -

1.2 Relevant identified uses of the substance or mixture and uses advised against

Use of the substance/mixture Used as an oxidizing agent in various chemical reactions and analyses.

Uses advised against Not specified

1.3 Details of the supplier of the safety data sheet

Company identification Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.

1.4 Emergency Contact Details

Phone / e-Mail Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in

SECTION 2: Hazards identification

2.1 Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008 Ox. Sol. 2; Acute Tox. 3; Acute Tox. 4; Skin Corr. 1A; Skin Sens. 1; Acute Tox. 2; Resp. Sens. 1; Muta. 1B; Carc. 1A; Repr. 1B; STOT RE 1; Aquatic Acute 1; Aquatic Chronic 1

Classification source ECHA C&L Inventory via PubChem CID 24502 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements

2.2 Label elements

Hazard pictograms Oxidizer, Corrosive, Acute Toxic, Health Hazard, Environmental Hazard

Signal word Danger

Hazard statements H272: May intensify fire; oxidizer; H301: Toxic if swallowed; H312: Harmful in contact with skin; H314: Causes severe skin burns and eye damage; H317: May cause an allergic skin reaction; H330: Fatal if inhaled; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled; H340: May cause genetic defects; H350: May cause cancer; H360: May damage fertility or the unborn child; H372: Causes damage to organs through prolonged or repeated exposure; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects

2.3 Other hazards

Other hazards Strong oxidizer; may cause fire or explosion in contact with combustible materials.

SECTION 3: Composition/information on ingredients

3.1 Substance

Name Potassium dichromate

CAS No. 7778-50-9

SECTION 4: First aid measures

4.1 Description of first aid measures

First-aid measures after inhalation Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention immediately.

First-aid measures after skin contact IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water.

First-aid measures after eye contact First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center.

First-aid measures after ingestion Do not induce vomiting. Rinse mouth and seek medical attention immediately.

4.2 Most important symptoms and effects, both acute and delayed

Symptoms relating to use Symptoms of exposure may include respiratory distress, skin irritation, and eye damage. Chronic exposure may lead to cancer.

4.3 Indication of any immediate medical attention and special treatment needed

General information Treat symptomatically. Show this safety data sheet to the treating physician.

SECTION 5: Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

Unsuitable extinguishing media Not specified

5.2 Special hazards arising from the substance or mixture

Special procedures May cause fire or explosion; strong oxidizer. Use water spray to cool containers exposed to fire.

5.3 Advice for firefighters

Protection during firefighting Do not enter fire area without proper protective equipment, including respiratory protection.

SECTION 6: Accidental release measures

6.1.1 For non-emergency personnel

Emergency procedures Evacuate area and ventilate. Wear appropriate protective equipment. Contain and collect spill using inert material.

6.3 Methods and material for containment and cleaning up

Methods for cleaning up Personal protection: complete protective clothing including self-contained breathing apparatus. Sweep spilled substance into covered non-combustible containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder.

6.4 Reference to other sections

Reference Not specified

SECTION 7: Handling and storage

7.1 Precautions for safe handling

Precautions for safe handling Handle with care, using appropriate personal protective equipment (PPE) including gloves and goggles. Avoid contact with skin and eyes.

Hygiene measures Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.

7.2 Conditions for safe storage, including any incompatibilities

Storage conditions Provision to contain effluent from fire extinguishing. Separated from combustible substances, reducing agents and food and feedstuffs. Well closed. Store in an area without drain or sewer access.

SECTION 8: Exposure controls/personal protection

8.2 Exposure controls

Hand protection Handle with gloves.

Eye protection Face shield and safety glasses. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin and body protection Wear suitable protective clothing

Respiratory protection Use appropriate respiratory protection if ventilation is inadequate.

SECTION 9: Physical and chemical properties

9.1 Information on basic physical and chemical properties

Physical state Solid

Colour Orange-red

Odour Odorless, no distinctive odor

Odour threshold No data available

pH value 4.0 (saturated solution)

Relative evaporation rate (butylacetate=1) No data available

Melting point 398 °C

Freezing point No data available

Boiling point Decomposes at about 500 °C

Flash point No data available

Auto-ignition temperature No data available

Decomposition temperature No data available

Flammability (solid, gas) Not flammable, but a strong oxidizer

Vapour pressure No data available

Relative vapour density at 20°C No data available

Density 2.676 at 25 °C/4 °C

Solubility In water, 45,000 mg/L at 25 °C

Log Pow No data available

Viscosity, kinematic No data available

Viscosity, dynamic No data available

Explosive properties No data available

Oxidising properties Strong oxidizer

Explosive limits No data available

SECTION 10: Stability and reactivity

10.1 Reactivity

Reactivity Reacts violently with reducing agents and organic materials.

10.2 Chemical stability

Chemical stability Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

Possibility of hazardous reactions The substance is a strong oxidant. It reacts with combustible and reducing materials. The solution in water is a weak acid.

10.4 Conditions to avoid

Conditions to avoid Avoid contact with incompatible materials and excessive heat.

10.5 Incompatible materials

Incompatible materials Strongly reactive with organic materials, reducing agents, and acids.

10.6 Hazardous decomposition products

Hazardous decomposition products When heated to decomposition it emits toxic fumes of potassium oxide.

SECTION 11: Toxicological information

11.1 Information on toxicological effects

Acute toxicity LD50 Mouse oral 190 mg/kg; LD50 Mouse ip 37 mg/kg

Skin corrosion/irritation H314: Causes severe skin burns and eye damage

Serious eye damage/irritation Not classified (based on available data)

Respiratory or skin sensitisation H317: May cause an allergic skin reaction; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled

Germ cell mutagenicity H340: May cause genetic defects

Carcinogenicity H350: May cause cancer

Specific target organ toxicity (single exposure) Not classified (based on available data)

Specific target organ toxicity (repeated exposure) H372: Causes damage to organs through prolonged or repeated exposure

SECTION 12: Ecological information

12.1 Toxicity

Toxicity information Not specified

12.2 Persistence - degradability

Persistence - degradability Not specified

12.3 Bioaccumulative potential

Bioaccumulative potential Not specified

12.4 Mobility in soil

Mobility in soil Not specified

12.6 Other adverse effects

Environmental precautions Not specified

SECTION 13: Disposal considerations

13.1 Waste treatment methods

Additional Info Dispose of contents/container in accordance with local, regional, national and international regulations.

SECTION 14: Transport information

14.1 UN number

UN-No. (ADR) 3087

UN-No. (IMDG) 3087

UN-No. (IATA) 3087

UN-No. (ADN) 3087

UN-No. (RID) 3087

14.2 UN proper shipping name

Proper Shipping Name (ADR) Potassium dichromate

Proper Shipping Name (IMDG) Potassium dichromate

Proper Shipping Name (IATA) Potassium dichromate

Proper Shipping Name (ADN) Potassium dichromate

Proper Shipping Name (RID) Potassium dichromate

14.3 Transport hazard class(es)

Transport hazard class(es) 5.1 (6.1)

14.4 Packing group

Packing group (ADR) II

Packing group (IMDG) II

Packing group (IATA) II

Packing group (ADN) II

Packing group (RID) II

14.5 Environmental hazards

Dangerous for the environment Not specified

Marine pollutant Not specified

Other information No supplementary information available

SECTION 15: Regulatory information

15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

15.1.1 EU-Regulations Not specified

SECTION 16: Other Information

Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a guarantee or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text.