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Potassium dichromate - 13% solution

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Potassium dichromate - 13% solution

This substance is only available to education establishments and registered companies. It is not available to the general public due to current regulations.

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Potassium dichromate - 13% solution

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Potassium dichromate - 13% solution

Common sensitiser used in many alternative processes.
Additional Information
Product Identifier

Product name : Potassium dichromate 13% solution

Brand : Buildingbox Ltd

CAS-No. : 7778-50-9 1.2

Relevant identified uses of the substance or mixture

Identified uses : Photographic use only

Details of the supplier of the safety data sheet

Company :

Buildingbox Ltd
Unit 15-16 Highlode Industrial Estate
PE26 2RB

Telephone : +44 (0)1487 813447
E-mail address : sales@wetplatesupplies.com

Emergency telephone number

Emergency Phone # : +44 (0)1487 813447

Hazard identification

Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]

Carcinogenicity (Category 1B)
Germ cell mutagenicity (Category 1B)
Reproductive toxicity (Category 1B)
Acute toxicity, Inhalation (Category 2)
Acute toxicity, Oral (Category 3)
Specific target organ toxicity - repeated exposure (Category 1)
Acute toxicity, Dermal (Category 4)
Skin corrosion (Category 1B)
Respiratory sensitization (Category 1)
Skin sensitization (Category 1)
Acute aquatic toxicity (Category 1)
Chronic aquatic toxicity (Category 1)

Classification according to EU Directives 67/548/EEC or 1999/45/EC

Toxic by inhalation.
May cause cancer.
May cause heritable genetic damage.
May impair fertility.
May cause harm to the unborn child.
Harmful if swallowed.
Harmful: danger of serious damage to health by prolonged exposure through inhalation.
May cause sensitization by inhalation and skin contact.
Irritating to eyes, respiratory system and skin.
Very toxic to aquatic organisms, may cause long term adverse effects in the aquatic environment.

Restricted to professional users.



Synonyms : Potassium bichromate

Formula : Cr2K2O7
Molecular Weigh : 294.18 g/mol



 Potassium dichromate Included in the Candidate List of Substances of Very High Concern (SVHC) according to Regulation (EC) No. 1907/2006 (REACH)

CAS-No. : 7778-50-9

EC-No. : 231-906-6


First aid

Description of first aid measures General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

Fire fighting

Extinguishing media  Suitable extinguishing media

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

Special hazards arising from the substance or mixture

Potassium oxides, Chromium oxides

Advice for firefighters

Wear self contained breathing apparatus for fire fighting if necessary.

Further information

Use water spray to cool unopened containers.


Precautions for safe handling

Avoid contact with skin and eyes.
Avoid formation of dust and aerosols.
Avoid exposure - obtain special instructions before use.
Provide appropriate exhaust ventilation at places where dust is formed.
Keep away from sources of ignition - No smoking.
Keep away from heat and sources of ignition.

Conditions for safe storage, including any incompatibilities

Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

Accidental release

Personal precautions, protective equipment and emergency procedures

Wear respiratory protection.
Avoid dust formation.
Avoid breathing vapors, mist or gas.
Ensure adequate ventilation.
Evacuate personnel to safe areas.
Avoid breathing dust.

Environmental precautions

Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.

Methods and materials for containment and cleaning up

Sweep up and shovel.
Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations.
Keep in suitable, closed containers for disposal.

Reactivity No

Information on toxicological effects Acute toxicity

LD50 Oral - rat - male - 168 mg/kg
LD50 Oral - rat - female - 90.5 mg/kg
LC50 Inhalation - rat - female - 4 h - 0.088 mg/l
LD50 Dermal - rabbit - 14 mg/kg

Remarks: Lungs, Thorax, or Respiration:Acute pulmonary edema. Diarrhoea Prolonged skin contact may cause skin irritation and/or dermatitis.

Skin corrosion/irritation

no data available

Serious eye damage/eye irritation

no data available

Respiratory or skin sensitization

May cause allergic respiratory reaction.

Germ cell mutagenicity

May alter genetic material.

In vivo tests showed mutagenic effects


This is or contains a component that has been reported to be carcinogenic based on its IARC, OSHA, ACGIH, NTP, or EPA classification.

Possible human carcinogen

IARC:          1 - Group 1: Carcinogenic to humans (Potassium dichromate)

Reproductive toxicity

Presumed human reproductive toxicant

Specific target organ toxicity - single exposure

no data available

Specific target organ toxicity - repeated exposure

Inhalation - Causes damage to organs through prolonged or repeated exposure.

Aspiration hazard

no data available

Potential health effects

Inhalation May be fatal if inhaled. Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract.
May be fatal if swallowed. Causes burns.
May be fatal if absorbed through skin. Causes skin burns.
Causes eye burns.

Signs and Symptoms of Exposure

Ulceration, Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin.

Other The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. Buildingbox Ltd shall not be held liable for any damage resulting from handling or from contact with the above product.
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Potassium dichromate - 13% solution Wet Plate Supplies is a UK based store selling a range of supplies for alternative photographic processes, namely Wetplate collodion, Cyanotype, Gum bichromate, Kallitype, Van dyke and Pt/Pd. They also offer training and studio facilities for both wetplate and other alternative processes. In this section you can find our Potassium dichromate - 13% solution