MATERIAL SAFETY DATA SHEET

METHYLENE BLUE

Section I - IDENTIFICATION

PRODUCT: Methylene Blue

SYNONYMS: Thiazine Blue, Basic Blue 9, C.I. 52015, 7-(dimethylamino)-3-(methylamino)-3H-phenothiazine-3-methochloride

CHEMICAL FORMULA: C₁₆H₁₈N₃ClS.3H₂O

CHEMICAL ABSTRACT NO.: 61-73-4

PRODUCT CODE NO.: 14860

Section II - HAZARDOUS INGREDIENTS

Section III - HEALTH & FIRST AID INFORMATION

INHALATION: Assumed harmful. Remove patient from exposure. If irritation persists, seek medical advice.

INGESTION: Assumed harmful. Seek medical attention immediately

EYE CONTACT: Irritates and stains. Rinse eyes with plenty of water for at least 15 minutes. Seek medical attention.

SKIN CONTACT: Stains, may irritate. Wash with plenty of soap and water. Seek medical attention if irritation persists.

OTHER HEALTH INFORMATION: LD₅₀ = 1250 mg/kg (oral, rat)

To the best of our knowledge, the toxicological properties of methylene blue have not been thoroughly investigated.

Section IV - PHYSICAL DATA

MELTING POINT: 190^oC (decomposes)

SOLUBILITY IN WATER: Soluble

VAPOUR DENSITY (AIR=1): 13

APPEARANCE AND ODOUR: Odourless, iridescent dark green crystals

Section V - FIRE AND EXPLOSION HAZARDS

SPECIAL FIRE FIGHTING PROCEDURES & PRECAUTIONS: Wear self-contained breathing apparatus and protective clothing to prevent skin and eye contact.

UNUSUAL FIRE & EXPLOSION HAZARDS: Emits toxic fumes of CO, CO₂, NO_x, SO_x and HCl.

Section VI - REACTIVITY

STABILITY: Stable

HAZARDOUS POLYMERIZATION: Will not occur

CONDITIONS & MATERIALS TO AVOID: Strong oxidizers

HAZARDOUS DECOMPOSITION PRODUCTS: Toxic fumes of CO, CO₂, NO_x, SO_x and HCl.

Section VII - EMPLOYEE PROTECTION

CONTROL MEASURES: Use in a well ventilated area.

RESPIRATORY PROTECTION: Dust mask or self-contained breathing apparatus.

PROTECTIVE CLOTHING: Gloves

EYE PROTECTION: Safety goggles

Section VIII - ENVIRONMENTAL PROTECTION

SPILL OR LEAK PRECAUTIONS: Wear respirator and gloves. Sweep or scoop spill into a salvage container and hold for disposal. Wash spill area with plenty of soap and water to remove residue.

WASTE DISPOSAL: Consult a professional disposal service.

Section IX - REGULATORY CONTROLS

DEPT. OF TRANSPORTATION: Not regulated under the Transport of Dangerous Goods Act.

DOT CLASSIFICATION: n. ap.

DOT PROPER SHIPPING NAME: n. ap.

OTHER DOT INFORMATION: n. ap.

WHMIS CLASSIFICATION: not controlled under WHMIS

OTHER REGULATORY REQUIREMENT: n. av.

Section X - PRECAUTIONS: HANDLING, STORAGE & USAGE

Store in a cool place away from direct sunlight.

PREPARED BY: MSDS Department                        DATE: Update January 10, 2008