Safety Data Sheets / Paraformaldehyde 4% Solution, 0.1M Phosphate Buffered - pH7.2

Safety Data Sheet

Paraformaldehyde 4% Solution, 0.1M Phosphate Buffered - pH7.2

Version 1Last reviewed 26 February 2026Catalogue: 157-4-SPPP, 15735-50S, 15735-60S, C00542, EMS15735-50S, EMS15735-60S

1. Identification

Product Identifiers

Product Name: Paraformaldehyde 4% Solution, 0.1M Phosphate Buffered - pH7.2
Other Names: Not available.
Product Number(s): 157-4-SPPP, 15735-50S, 15735-60S, C00542, EMS15735-50S, EMS15735-60S
CAS Number: Not available.

Recommended use of the chemical and restriction on use

Laboratory chemicals.

Company Details

ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au

Emergency Contact Details

ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au

2. Hazards Identification

Classification of the substance or mixture

GHS08 Health hazard
Germ Cell Mutagenicity 2. H341 Suspected of causing genetic defects.
Carcinogenicity 1B. H350 May cause cancer.
GHS07 Sensitization - Skin 1. H317 May cause an allergic skin reaction.

Label Elements

Signal Words: None
Hazard Statement(s): Hazard-determining components of labelling:
formaldehyde
May cause an allergic skin reaction.
Suspected of causing genetic defects.
May cause cancer.
Precautionary Statement(s): Obtain special instruction before use.
Do not handle until all safety precautions have been read and understood.
Avoid breathing dust/fume/gas/mist/vapours/spray.
Contaminated work clothing should not be allowed out of the workplace.
Wear protective gloves/protective clothing/eye protection/face protection.

Primary route(s) of entry

The skin.

Human Health

Inhalation: If exposed or concerned: Get medical attention.
Ingestion: Not available
Eyes: Not available.
Skin: Wash with plenty of water. If skin irritation or rash occurs: Get medical advice/attention. Wash contaminated clothing before reuse.

Environment

Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

3. Composition / Information on Ingredients

Name	CAS No.	Content (w/w)	Classification
formaldehyde	50-00-0	>2.5-≤10%	Mixture

4. First Aid Measures

Ingestion: If symptoms persist consult doctor.
Inhalation: Supply fresh air and to be sure call for a doctor.
In case of unconsciousness place patient stably in side position for transportation.
Skin Contact: Immediately wash with water and soap and rinse thoroughly.
Eye Contact: Rinse opened eye for several minutes under running water.
Other Information: Symptoms of poisoning may even occur after several hours; therefore medical observation for a t least 48 hours after the accident.

5. Firefighting Measures

Suitable extinguishing equipment

Fire: Use fire extinguishing methods suitable to surrounding conditions.
HAZCHEM: No further relevant information available.

Special protective equipment and precautions for fire fighters

Mouth respiratory protective device.

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures: Not required.
Environmental precautions: Dilute with plenty of water.
Do not allow to enter sewers/surface or ground water.
Methods and materials for containment and clean up: Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).
Dispose contaminated material as waste according to item 13.
Ensure adequate ventilation.

7. Handling and Storage

Precautions for safe handling: Ensure good ventilation/exhaustion at the workplace.
Open and handle receptacle with care.
Prevent formation of aerosols.
Keep respiratory protective device available.
Conditions for safe storage: Keep container tightly sealed.

8. Exposure Controls / Personal Protection

Exposure Standards

Material	TWA ppm	TWA mg/m³	STEL ppm	STEL mg/m³
formaldehyde	1ppm	1.2mg/m³	2ppm	2.5mg/m³

Engineering controls: Keep away from foodstuffs, beverages and feed.
Immediately remove all soiled and contaminated clothing.
Wash hands before breaks and at the end of work.
Store protective clothing separately.
Avoid contact with the skin.
Avoid contact with the eyes and skin.

Personal protective equipment

Eye and face protection: Tightly sealed goggles.
Skin protection: Wear protective gloves. The glove material has to be impermeable and resistant to the product/the substance/the preparation. Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation. The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.
Body protection: Not available.
Respiratory protection: In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use self-contained respiratory protective device.

9. Physical and Chemical Properties

General information

Appearance: Colourless liquid
Odour: Pungent
pH: Not determined
Vapour Pressure: 23hPa
Density: 0.9905 g/cm³
Boiling Point: -21°C
Melting Point: 0°C
Solubility: Fully miscible
Specific Gravity of Density: Not available
Flash Point: Not applicable
Flammable (Explosive) Limits: not determined
Ignition Temperature: Product is not selfigniting
Formula: Not available

10. Stability and Reactivity

Reactivity: No further relevant information available.
Chemical stability: No decomposition if used according to specifications.
Possibility of hazardous reactions: No dangerous reactions known.
Conditions to avoid: No further relevant information available.
Incompatible materials: No further relevant information available.

11. Toxicological Information

Acute effects: 50-00-0 formaldehyde
Oral LD50 >500mg/kg (rat)
Eye contact: No irritating effect.
Skin contact: Irritant to skin and mucous membranes. Sensitisation possible through skin contact.
Ingestion: Not available.
Inhalation: Not available.
Toxicity and irritation: Harmful
Irritant
Carcinogenic

12. Ecological Information

Ecotoxicity: No further relevant information available.
Persistence and degradability: No further relevant information available.
Bioaccumulative potential: No further relevant information available.
Other adverse effects: Water hazard class 2: Hazardous for water.
Do not allow product to reach ground water, water course or sewage system.
Danger to drinking water if even small quantities leak into the ground.

13. Disposal Considerations

General information

Must not be disposed together with household garbage. Do not allow product to reach sewage system.
Disposal must be made according to official regulations.
Recommended cleansing agents: Water, if necessary together with cleansing agents.

14. Transport Information

ADG label required

HAZCHEM: No further relevant information available.
UN Number: Not regulated
Proper shipping name: Not regulated
Transport hazard class: Not regulated
Packing group: Not regulated.
Environmental hazard: Not applicable.
Special precautions for users: Not applicable.
Additional information: Not available.

15. Regulatory Information

Poisons Schedule Number: 50-00-0 formaldehyde S2, S6, S10
Other Information: Workers are not allowed to be exposed to the hazardous carcinogenic materials contained in this preparation. Exceptions can be made by the authorities in certain cases.
A Chemical Safety Assessment has not been carried out.

16. Other Information

SDS preparation date: 26 February 2026
Comments: This information is based on our present knowledge. However, this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.
References: Electron Microscope Science SDS PARAFORMALDEHYDE 4% IN 0.1M PHOSPHATE BUFFER. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.emsdiasum.com/docs/technical/msds/15735-50S.pdf 03/11/2022.