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Metol - Popular developing agent used in many film and paper developers


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Metol - Popular developing agent used in many film and paper developers
Additional Information
Product Identifier


Brand : WildPhoto Ltd

CAS-No. : 55-55-0

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

Identified uses : Photographic use only

Details of the supplier of the safety data sheet

Company :

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

Telephone : +44 (0)1487 813447
E-mail address :

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]

Acute toxicity, Oral (Category 4)
Specific target organ toxicity - repeated exposure (Category 2)
Skin sensitization (Category 1)
Acute aquatic toxicity (Category 1)
Chronic aquatic toxicity (Category 1)

Label elements

Labelling according Regulation (EC) No 1272/2008 [CLP]

Signal word: Warning

Hazard statement(s)

H302    Harmful if swallowed.
H317    May cause an allergic skin reaction.
H373    May cause damage to organs through prolonged or repeated exposure.
H410    Very toxic to aquatic life with long lasting effects.
Precautionary statement(s)

P273    Avoid release to the environment.
P280    Wear protective gloves.
P501    Dispose of contents/ container to an approved waste disposal plant.
Supplemental Hazard Statements



Synonyms: 4-(Methylamino)phenol, Metol,ECOL

Formula: C7H9NO · 0.5H2SO4

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. 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 extinguishing measures that are appropriate to local circumstances and the surrounding environment.

Special hazards arising from the substance or mixture

Carbon oxides, nitrogen oxides (NOx), Sulphur oxides

Advice for firefighters

Wear self contained breathing apparatus for fire fighting if necessary.

Further information

Gives off hydrogen by reaction with metals.The product itself does not burn.


Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed.

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

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, 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

Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal



no data available

Chemical stability

no data available

Possibility of hazardous reactions

no data available

Conditions to avoid


Incompatible materials

Acids, Acid chlorides, Acid anhydrides, Oxidizing agents

Hazardous decomposition products

Other decomposition products - no data available


Information on toxicological effects

Acute toxicity
LD50 Oral - mouse - 565 mg/kg
Behavioral:Somnolence (general depressed activity).
Behavioral:Tremor. Kidney, Ureter, Bladder:Other changes in urine composition.
TDLo Oral - rat - 9,350 mg/kg
Remarks: Endocrine:Other changes. Blood:Changes in spleen. TDLo Oral - rat -
Remarks: Kidney, Ureter, Bladder:Changes in tubules (including acute renal failure, acute tubular necrosis). Endocrine:Other changes.

Skin corrosion/irritation
Serious eye damage/eye irritation
Irritating to eyes, respiratory system and skin. no data available

Respiratory or skin sensitization
May cause allergic skin reaction.

Germ cell mutagenicity
no data available

IARC:    No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.

Reproductive toxicity
no data available

Specific target organ toxicity - single exposure
no data available

Specific target organ toxicity - repeated exposure
no data available

Aspiration hazard
no data available

Potential health effects
Inhalation    May be harmful if inhaled. May cause respiratory tract irritation.
Ingestion    Harmful if swallowed.
Skin    May be harmful if absorbed through skin. May cause skin irritation.
Eyes    Causes serious eye irritation.


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. WildPhoto Ltd shall not be held liable for any damage resulting from handling or from contact with the above product.

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Metol 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 Metol