POTASSIUM DICHROMATE AR
- Part number
- RXSOL-60-6605-283
- Category
- Lab Chemical
- Brand
- RXSOL
Overview
Potassium dichromate is a potassium salt that is the dipotassium salt of dichromic acid. It has a role as an oxidising agent, an allergen and a sensitiser. It contains a dichromate(2-). Potassium bichromate appears as orange red crystals.
Applications
Potassium dichromate is a potassium salt that is the dipotassium salt of dichromic acid. It has a role as an oxidising agent, an allergen and a sensitiser.
Potassium Dichromate is commonly used in acid solution to standardize Ferrous salt solutions using Ferroin indicator:
Potassium Dichromate is also used to standardize Sodium Thiosulfate solutions. In acidic solution, Potassium Dichromate oxidizes Potassium Iodide to Iodine; the Iodine thus generated can then be titrated with the Thiosulfate solution using Starch Indicator:
Hexavalent Chromium compounds (the form present in the Dichromate ion) are carcinogenic, and this fact should be considered when evaluating Potassium Dichromate against other oxidizers such as Ceric Sulfate, Potassium Iodate and Potassium Permanganate.
Dosage and directions
Primary and secondary alcohols are oxidized by K2Cr2O7 to carboxylic acids and ketones respectively. The oxidation is physically observed by the change in color upon reduction of Cr6+ (yellow) to Cr3+ (blue). This demonstration also illustrates the chemistry behind the breathalyzer test.
Characteristics and notes
Potassium Dichromate is used for preparing strong cleaning solutions for glassware and for etching materials. It also has uses in leather tanning, photographic processing, cement, and wood staining.
Safety and SDS
Read the safety data sheet before handling. Wear suitable gloves and eye protection.
View safety data sheet
| Product Name | RXSOL-60-6605-283 |
| Product Type | POTASSIUM DICHROMATE AR |
| Revised date |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Stock Point : Mumbai, Kandla, Chennai, Visakhapatnam, Kolkata, Fujairah, Muscat Barka
| Phone | +91 22 27815541 / 42 |
| Fax | +91 22 2781 1318 :::AOH :0091 9821214367 |
| rxsolchemicals@gmail.com |
Substance / Preparation : Potassium dichromate
CAS No :7778-50-9
Substance.
Substance name Contents CAS No
Potassium dichromate : 100 % 7778-50-9
Contains no other components or impurities which will influence the classification of the
product.
3.1. Classification of the substance or mixture
Classification EC 67/548 or EC 1999/45
Classification : T+; R26
T; R25-R48/23
Xn; R21
C; R34
Xn ; R42/43
N; R50-53
Hazard Class and Category Code(s), Regulation (EC) No 1272/2008 (CLP)
Health hazards : Acute toxicity, Inhalation - Category 2 - Danger (CLP : Acute Tox. 2)
H330
Acute toxicity, Oral - Category 3 - Danger (CLP : Acute Tox. 3) H301
Acute toxicity, dermal - Category 4 - Warning (CLP : Acute Tox. 4) H312
Environmental hazards : Hazardous to the aquatic environment - Acute hazard -
Category 1 - Warning (CLP : Aquatic Acute 1) H400
3.2. Label elements
Labelling EC 67/548 or EC 1999/45
Symbol(s) : O : Oxidizing T+ : Very toxic
N : Dangerous for the environment
R Phrase(s) : R45 : May cause cancer.
R46 : May cause heritable genetic damage.
R60 : May impair fertility.
R61 : May cause harm to the unborn child.
R21 : Harmful in contact with skin.
R25 : Toxic if swallowed.
R26 : Very toxic by inhalation.
R34 : Causes burns.
R42/43 : May cause sensitization by inhalation and skin contact.
R48/23 : Toxic : danger of serious damage to health by prolonged exposure through
inhalation.
R50/53 : Very toxic to aquatic organisms, may cause long-term adverse effects in
the aquatic environment.
S Phrase(s) : S53 : Avoid exposure - obtain special instructions before use.
S45 : In case of accident or if you feel unwell, seek medical advice immediately ( show
the label when possible).
S60 : This material and its container must be disposed of as hazardous waste.
S61 : Avoid release to the environment. Refer to special instructions/Safety data
sheets.
Labelling Regulation EC 1272/2008 (CLP)
Hazard pictograms
Signal words : Danger
Hazard statements : H330 : Fatal if inhaled.
H301 : Toxic if swallowed.
H312 : Harmful in contact with skin.
H400 : Very toxic to aquatic life.
Precautionary statements
• Prevention : P284: Wear respiratory protection.
P280: Wear protective gloves, protective clothing, eye protection, face protection.
P271: Use only outdoors or in a well-ventilated area.
P260: Do not breathe dust, fume, gas, mist, vapours, spray.
P273: Avoid release to the environment.
P264: Wash thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
• Response : P301+P310: IF SWALLOWED : Immediately call a POISON CENTER or
doctor.
P302+P352: IF ON SKIN : Wash with plenty of soap and water.
P391: Collect spillage.
P304+P340: IF INHALED : Remove to fresh air and keep at rest in a position
comfortable for breathing.
P363: Wash contaminated clothing before reuse.
• Storage : P403+P233: Store in well-ventilated place. Keep container tightly closed.
P405: Store locked up.
• Disposal considerations : P501: Dispose of this material and its container to hazardous
or special waste collection point, in accordance with local, regional, national and/or
international regulation.
3.3. Other hazards
Other hazards : The substance does not fulfil the criteria to be identified as PBT
substance or vPvB substance according to Annex XIII of Regulation REACH.
Other hazards : • Potassium dichromate : 294.2
4.1. Description of first aid measures
Inhalation : Assure fresh air breathing. Allow the victim to rest. Specific treatment is
urgent (see on this label). Immediately call a POISON CENTER or doctor. Remove to
fresh air and keep at rest in a position comfortable for breathing.
Skin contact : Remove affected clothing and wash all exposed skin area with mild soap
and water, followed by warm water rinse. Immediately call a POISON CENTER or
doctor. Specific treatment (see on this label). Wash with plenty of soap and water. Wash
contaminated clothing before reuse.
Eye contact : Rinse immediately with plenty of water. Obtain medical attention if pain,
blinking or redness persist.
Ingestion : Rinse mouth. Do NOT induce vomiting. Specific treatment (see on this label).
Immediately call a POISON CENTER or doctor.
4.2. Most important symptoms and effects, both acute and delayed
Symptoms relating to use : Fatal if inhaled. Swallowing a small quantity of this material
will result in serious health hazard. Repeated exposure to this material can result in
absorption through skin causing significant health hazard.
4.3. Indication of any immediate medical attention and special treatment needed
General information : Never give anything by mouth to an unconscious person. If you
feel unwell, seek medical advice (show the label where possible).
5.1. Extinguishing media
Suitable extinguishing media : Foam. Dry powder. Carbon dioxide. Water spray. Sand.
Unsuitable extinguishing media : Do not use a heavy water stream.
Surrounding fires : Use water spray or fog for cooling exposed containers.
5.2. Special hazards arising from the substance or mixture
Hazardous combustion products : Under fire conditions, hazardous fumes will be
present.
5.3. Advice for fire-fighters
Protection against fire : Do not enter fire area without proper protective equipment,
including respiratory protection.
Special procedures : Exercise caution when fighting any chemical fire. Avoid (reject)
fire-fighting water to enter environment.
6.1. Personal precautions, protective equipment and emergency procedures
For emergency responders : Equip cleanup crew with proper protection.
Ventilate area.
For non-emergency personnel : Evacuate unnecessary personnel.
6.2. Environmental precautions
Environmental precautions : Prevent entry to sewers and public waters. Notify
authorities if product enters sewers or public waters. Avoid release to the environment.
6.3. Methods and material for containment and cleaning up Clean up
methods : On land, sweep or shovel into suitable containers. Minimize
generation of dust. Store away from other materials.
6.4. Reference to other sections
See section 8. Exposure controls/personal protection\
7.1. Precautions for safe handling
Handling : Do not eat, drink or smoke when using this product. Wash thoroughly after
handling. Do not breathe dust, fume, gas, mist, vapours, spray. Use only outdoors or in a
wellventilated area.
Technical protective measures : Provide good ventilation in process area to prevent
formation of vapour.
7.2. Conditions for safe storage, including any incompatibilities
Storage : Keep only in the original container in a cool, well ventilated place. Keep
container tightly closed.
Storage - away from : Strong bases. Strong acids. Sources of ignition. Direct sunlight.
7.3. Specific end use(s)
Specific end use(s) : None.
8.1. Exposure controls
Personal protection : Avoid all unnecessary exposure.
• Respiratory protection : Wear respiratory protection.
• Hand protection : Wear protective gloves.
• Eye protection : Chemical goggles or safety glasses.
• Others : When using, do not eat, drink or smoke.
8.2. Control parameters
Occupational Exposure Limits : No data available.
MAC [mg/m³] : 0.03
9.1. Information on basic physical and chemical properties
Physical state at 20 °C : Solid.
Odour threshold : No data available.
pH value : Not applicable.
Melting point [°C] : 398
Decomposition point [°C] : N/A
Critical temperature [°C] : N/A
Auto-ignition temperature [°C] : N/A
Flammability (solid, gas) : N/A
Flash point [°C] : N/A
Boiling point [°C] : 500
Initial boiling point [°C] : N/A
Final boiling point [°C] : N/A
Evaporation rate : N/A
Vapour pressure [20°C] : N/A
Vapour pressure mm/Hg : N/A
Vapour density : N/A
Density [g/cm3] : 2.7
Relative density, gas (air=1) : N/A
Relative density, liquid (water=1) : N/A
Solubility in water [% weight] : 12.5 (20° C)
Solubility in water : N/A
Log Pow octanol / water at 20°C : No data available.
Solubility : 4.04 (1% aq. solutio
Viscosity at 40°C [mm2/s] : N/A
9.2. Other information
Explosive properties : N/A
Explosion limits - upper [%] : N/A
Explosion limits - lower [%] : N/A
Oxidising properties : No data available.
10.1. Reactivity
Reactivity : Not established.
10.2. Chemical stability
Chemical stability : Stable under recommended storage conditions.
10.3. Possibility of hazardous reactions
Hazardous reactions : Not established.
10.4. Conditions to avoid
Conditions to avoid : Direct sunlight. Extremely high or low temperatures.
10.5. Incompatible materials
Materials to avoid : Strong acids. Strong bases.
10.6. Hazardous decomposition products
Hazardous decomposition products : Fumes. Carbon monoxide. Carbon dioxide.
11.1. Information on toxicological effects
Acute toxicity
• Inhalation : Fatal if inhaled.
• Dermal : Harmful in contact with skin.
• Ingestion : Toxic if swallowed.
Corrosion : Based on available data, the classification criteria are not met.
Irritation : Based on available data, the classification criteria are not met.
Sensitization : Based on available data, the classification criteria are not met.
Mutagenicity : Based on available data, the classification criteria are not met.
Carcinogenicity : Based on available data, the classification criteria are not met.
Toxic for reproduction : Based on available data, the classification criteria are not met.
STOT-single exposure : Based on available data, the classification criteria are not met.
STOT-repeated exposure : Based on available data, the classification criteria are not
met.
Aspiration hazard : Based on available data, the classification criteria are not met.
12.1. Toxicity
Toxicity information : Very toxic to aquatic life.
12.2. Persistence - degradability
Persistence - degradability : Biodegradable.
12.3. Bioaccumulative potential
Bioaccumulative potential : Not established.
12.4. Mobility in soil
Mobility in soil : Not established.
12.5. Results of PBT and vPvB assessment
Results of PBT and vPvB assessment : The substance does not fulfil the criteria to be
identified as PBT substance or vPvB substance according to Annex XIII of Regulation
REACH.
12.6. Other adverse effects
Environmental precautions : Avoid release to the environment.
13.1. Waste treatment methods
General : Avoid release to the environment. Dispose in a safe manner in accordance with
local/national regulations. Dispose of this material and its container to hazardous or
special waste collection point, in accordance with local, regional, national and/or
international regulation.
Special precautions : Hazardous waste due to toxicity.
14.1. Land transport (ADR-RID)
Proper shipping name: Oxidizing solid, toxic, n.o.s.
UN N°: 3087
H.I. nr: 665
ADR - Class: 5.1(6.1)
Labelling - Transport: 5.1 : Oxidizing substance s . 6.1 : Toxic substances.
ADR - Classification code: TO2
ADR - Group: II
ADR - Packing instructions: P002
ADR - Limited Quantity: 0
ADR - Tunnel code : C/E : Tank carriage: Passage forbidden through tunnels of
category C, D and E. Other carriage: Passage forbidden through tunnels of category E.
14.2. Sea transport (IMDG) [English only]
Proper shipping name: Oxidizing solid, toxic, n.o.s.
UN N°: 3087
IMO-IMDG - Class or division: 5.1 : Oxidizing substances. (6.1 : Toxic substances. )
IMO-IMDG - Packing group: II
IMO- IMDG - Packing instructions: P002
IMO-IMDG - Limited quantities: None
IMO-IMDG - Marine pollution: Yes
EMS-Nr: F-A S-Q
14.3. Air transport (ICAO-IATA) [English only]
Proper shipping name : Oxidizing solid, toxic, n.o.s.
UN N°: 3087
IATA - Class or division: 5.1 : Oxidizing substances. (6.1 : Toxic substances.)
IATA - Packing group: II
IATA - Passenger and Cargo Aircraft : ALLOWED
- Passenger and Cargo - Packing : 665
instruction
- Passenger and Cargo - Maximum : 1 kg
Quantity/Packing
IATA - Cargo only : ALLOWED
- Cargo only - Packing instruction : 672
- Cargo only - Maximum Quantity/ : 15 kg
Packing
ERG-Nr : 6X
15.1. Safety, health and environmental regulations/legislation specific for the
substance or mixture
Safety, health and environmental : Ensure all national/local regulations are observed.
regulations/legislation specific for the substance or mixture
REACH Restrictions - Annex XVII : With the exception of those listed below:
The components of this product are not subject to restrictions.
Annex XVII
REACH Authorisation - Annex XIV : The components of this product are not subject
to authorization.
15.2. Chemical Safety Assessment
Chemical Safety Assessment : It has not been carried out.
Abbreviations and acronyms : PBT: persistent, bioaccumulative and toxic.
vPvB: very persistent and very bioaccumulative
Sources of key data used : REGULATION (EC) No 1272/2008 OF THE EUROPEAN
PARLIAMENT AND OF THE COUNCIL of 16 December 2008 on classification,
labelling and packaging of substances and mixtures, amending and repealing Directives
67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006
Further information : None.
In accordance with REACH Regulation (CE) Nº 1907/2006 and with CLP Regulation
(CE) Nº 1272/2008
DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable.
Availability
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