Product ID:METHYLENE BLUE,TRIHYDRATE
MSDS Date:03/26/1991
FSC:6810
NIIN:00F025995
MSDS Number: BQHFQ

Emergency Phone: 213-516-8000

Info Phone: 213-516-8000

Cage: 63415

Telephone: 310-516-9843

Cage: 63415

3,7-BIS(DIMETHYLAMINO)-,CHLORIDE,TRIHYDRATE, METHYLENE

CAS: 7220-79-3

RTECS: SP5740000

Fraction By Weight: 100%

LD50 LC50 Mixture:ORAL LD50 (RAT): 1180 MG/KG
Routes of Entry: Inhalation:NO Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:SKIN: IRRITATION/STAINS. EYE:
CORNEAL/CONJUNCTIVAL INJURY. 1% SOLUTION MAY STING/CAUSE TEMPORARY
STAIN/LACRIMATION. INGESTION: TOXIC/LARGE DOSES CAUSE HEINZ
BODIES/HEMOLYSIS/MILD METHEMOGLOBINEMIA W/C
YANOSIS/GASTROINTESTINAL & BLADDER IRRITANT/PARASYMPATHETIC
RECEPTIVE SYSTEM DEPRESSION/ELEVATED TEMP BY CENTRAL ACTION.
Explanation of Carcinogenicity:NONE

First Aid:INHALATION: REMOVE TO FRESH AIR. IF BREATHING STOPS, PERFORM
ARTIFICIAL RESPIRATION. KEEP WARM/AT REST. TREAT
SYMPTOMATICALLY/SUPPORTIVELY. SKIN: WASH W/SOAP/MILD DETERGENT &
PLENTY OF WATER FOR 15-20 MINS. EYE: FLUSH W/PLENTY OF
WATER/NORMAL SALINE FOR 15-20 MINS. INGESTION: TREAT
SYMPTOMATICALLY/SUPPORTIVELY. IF VOMITING OCCURS, KEEP HEAD LOWER
THAN HIPS TO PREVENT ASPIRATION. OBTAIN MED ATTN.

Extinguishing Media:DRY CHEMICAL, CO2, WATER SPRAY, OR FOAM. FOR LARGER
FIRES, USE WATER SPRAY, FOG, OR ALCOHOL FOAM
Fire Fighting Procedures:USE AGENTS SUITABLE FOR TYPE OF SURROUNDING
FIRE. AVOID BREATHING HAZARDOUS VAPORS, KEEP UPWIND. USE SCBA
W/FULL FACEPIECE/SUPPLIED AIR RESPIRATOR.

Handling and Storage Precautions:AVOID CONTACT W/SKIN & EYES.

Respiratory Protection:DUST/MIST/AIR-PURIFYING/POWERED
AIR-PURIFYING/TYPE C SUPPLIED-AIR RESPIRATOR W/HIGH-EFFICIENCY
PARTICULATE FILTER/TIGHT-FITTING FULL FACEPIECE OPERATED IN
PRESSURE DEMAND/POSITIVE PRESSURE MODE/HELMET /HOOD IN
CONTINUOUS-FLOW MODE/SCBA.
Ventilation:LOCAL EXHAUST/GENERAL DILUTION: TO KEEP BELOW EXPOSURE
LIMITS.
Protective Gloves:RECOMMENDED
Eye Protection:SPLASH-PROOF/DUST-RESISTANT GOGGLES
Other Protective Equipment:IMPERVIOUS PROTECTIVE CLOTHING & EQUIPMENT,
EYE WASH FOUNTAIN
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING & SHOES
BEFORE REUSE.
Supplemental Safety and Health
METHYLENE BLUE IS GIVEN ORALLY FOR MEDICAL TREATMENT.

pH:<7
Solubility in Water:4%
Appearance and Odor:DARK GREEN CRYSTALS OR CRYSTALLINE POWDER
W/BRONZE-LIKE LUSTER, ODORLESS.

Stability Indicator/Materials to Avoid:YES
ALKALIES, DICHROMATES, ALKALI IODIDES, & REDUCING AGENTS
Hazardous Decomposition Products:TOXIC & CORROSIVE FUMES OF CHLORIDES,
& TOXIC OXIDES OF NITROGEN & SULFUR

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE W/LOCAL, STATE, &
FEDERAL REGULATIONS.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.