CPY3

Summary

Product identification

• Trade name: Pufferlösung CPY3 +468 mV
• Synonym: Buffer Solution CPY3 +468 mV
• Article number: CPY3-B-5
• Application: Laboratory chemicals

Hazard Identification

The product is classified and labeled according to the Globally Harmonized System (GHS).

• Hazard pictograms: GHS05 (Corrosion)
• Signal word: Danger
• Hazard statements: H314 Causes severe skin burns and eye damage.
• Hazard-determining components of labeling: sulphuric acid
• NFPA ratings: Health = 3, Fire = 0, Reactivity = 0
• HMIS ratings: Health = 3, Fire = 0, Reactivity = 0

The product does not contain any organic halogen compounds (AOX), nitrates, heavy metal compounds or formaldehydes.

Composition/information on ingredients

Mixture of the substances listed below with nonhazardous additions.

• sulphuric acid (CAS: 7664-93-9): 2-6%, Skin Corrosion 1A, H314
• iron(III) sulfate (CAS: 10028-22-5): 2-6%, Acute Toxicity - Oral 4 (H302); Skin Irritation 2 (H315); Eye Irritation 2A (H319)
• iron(II) sulfate (CAS: 7720-78-7): 1-2.5%, Acute Toxicity - Oral 4 (H302); Skin Irritation 2 (H315); Eye Irritation 2A (H319)

First-aid measures

• General: Immediately remove any clothing soiled by the product.
• Inhalation: In case of unconsciousness place patient stably in side position for transportation.
• Skin contact: Immediately wash with water and soap and rinse thoroughly. Immediately rinse with water.
• Eye contact: Rinse opened eye for several minutes under running water. Then consult a doctor.
• Swallowing: Drink copious amounts of water and provide fresh air. Immediately call a doctor.

Fire-fighting measures

• Suitable extinguishing agents: CO₂, extinguishing powder or water spray. Fight larger fires with water spray or alcohol resistant foam.
• Hazardous decomposition products: Poisonous gases are produced during heating or in case of fire.

Accidental release measures

• Personal precautions: Wear protective equipment. Keep unprotected persons away. Wear protective clothing. Mount respiratory protective device.
• Environmental precautions: Dilute with plenty of water. Do not allow to enter sewers/ surface or ground water.
• Containment and cleaning up: Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust). Use neutralizing agent. Dispose contaminated material as waste according to item 13. Ensure adequate ventilation.

Protective Action Criteria for Chemicals (PAC): See the official PDF for exact tabulated values.

Handling and storage

• Handling: Keep receptacles tightly sealed. Ensure good ventilation/exhaustion at the workplace. Prevent formation of aerosols.
• Storage: Keep receptacle tightly sealed.
• Storage class: 8 B

Exposure controls/personal protection

Control parameters:

• sulphuric acid (CAS: 7664-93-9): PEL 1 mg/m³, REL 1 mg/m³, TLV 0.2 mg/m³ (as thoracic fraction, A2)
• iron(III) sulfate (CAS: 10028-22-5): REL 1 mg/m³ (as Fe), TLV 1 mg/m³ (as Fe)
• iron(II) sulfate (CAS: 7720-78-7): REL 1 mg/m³ (as Fe), TLV 1 mg/m³ (as Fe)

Personal protective equipment:

• Breathing equipment: Use respiratory filter device for brief exposure or low pollution. Use self-contained respiratory protective device for intensive or longer exposure.
• Hand protection: Chemical-protective gloves of category III (e.g., Nitrile rubber, NBR; Chloroprene rubber, CR). Check material resistance prior to application.
• Eye protection: Tightly sealed goggles.
• Body protection: Protective work clothing.

Physical and chemical properties

• Appearance: Fluid, Dark yellow
• Odor: Odorless
• pH-value at 20 °C (68 °F): <2
• Vapor pressure at 20 °C (68 °F): 23 hPa (17.3 mm Hg)
• Density at 20 °C (68 °F): 1.1 g/cm³ (9.18 lbs/gal)
• Solubility in / Miscibility with Water: Fully miscible
• Solvent content (Water): 90-95 %
• Solids content: 0.0 %

Stability and reactivity

• Chemical stability: No decomposition if used according to specifications.
• Hazardous reactions: No dangerous reactions known.
• Hazardous decomposition products: No dangerous decomposition products known.

Toxicological information

• Primary irritant effect:
  • Skin: Strong caustic effect on skin and mucous membranes.
  • Eye: Strong caustic effect. Strong irritant with the danger of severe eye injury.
• Sensitization: No sensitizing effects known.
• Additional information: Corrosive, Irritant. Swallowing will lead to a strong caustic effect on mouth and throat and to the danger of perforation of esophagus and stomach.

Ecological information

• General notes: Water hazard class 1 (Self-assessment): slightly hazardous for water. Do not allow undiluted product or large quantities to reach ground water, water course or sewage system.

Disposal considerations

• Recommendation: Must not be disposed of together with household garbage. Do not allow product to reach sewage system.
• Uncleaned packagings: Disposal must be made according to official regulations.

Transport information

• UN-Number: UN2796
• UN proper shipping name: SULPHURIC ACID
• Transport hazard class(es): Class 8 (Corrosive substances), Label 8
• Packing group: II
• Special precautions: Warning: Corrosive substances. Hazard identification number (Kemler code): 80. EMS Number: F-A,S-B. Stowage Category B. Segregation Code SG36, SG49.
• DOT Quantity limitations: Passenger aircraft/rail: 1 L; Cargo aircraft only: 30 L
• IMDG Limited quantities (LQ): 1 L
• IMDG Excepted quantities (EQ): Code: E2, Maximum net quantity per inner packaging: 30 ml, Maximum net quantity per outer packaging: 500 ml

Regulatory information

• Sara Section 355: CAS: 7664-93-9 sulphuric acid; CAS: 7720-78-7 iron(II) sulfate
• Sara Section 313: CAS: 7664-93-9 sulphuric acid
• TSCA: All components have the value ACTIVE.
• Water hazard class: Water hazard class 1 (Self-assessment): slightly hazardous for water.

Other information

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.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror