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MSDS Material Safety Data Sheet
CAS

16721-80-5
7732-18-5

File Name: gfschemicals_com---3574msds.asp
 
                                   GFS CHEMICALS, INC.

                                   P.O. Box 245 Powell, OH 43065

                                740-881-5501(Tel.) 740-881-5989(Fax)

                                1-800-424-9300(Chemtrec 24Hr. Info.)



                               MATERIAL SAFETY DATA SHEET

                                                                                                  3574

                                 SODIUM HYDROSULFIDE, HYDRATE



CHEMICAL NAME & SYNONYMS                                               DOT CLASS     SARA TITLE 313

Sodium Hydrosulfide, hydrate                                           8/II          No

                                                                       TSCA listed - Yes



FORMULA                           REPORTABLE QUANTITY                  F.W.          CAS#

NaHS 60-75%                               N/A                          56.06         16721-80-5

H 2O  25-40%                              N/A                          18.02         7732-18-5



PHYSICAL DATA

Density 1.43; Melting point 52-54掳C; Very soluble in water.



APPEARANCE & ODOR

Slightly yellow crystals. May discolor on exposure to air and light. Odor of hydrogen sulfide

(rotten eggs).



REACTIVITY & CONDITIONS TO AVOID

Undergoes slow decomposition at room temperature, evolving hydrogen sulfide. Incompatible with

acids and oxidizers. Will liquify if it absorbs relatively small amounts of moisture.



FIRE HAZARDS

Combustible. Will decompose in general fire evolving noxious gas. Firefighters wear SCBA. Avoid

inhalation of fumes. NFPA # 3-2-1.



EXTINGUISHER                                                           FLASHPOINT    LEL   UEL

Fight surrounding fire.                                                90掳C          N/A   N/A



HEALTH HAZARDS

Irritating to skin, eyes and mucous membranes. Toxic internally and by inhalation of hydrogen

sulfide which may accumulate in closed spaces. Symptoms include headache, nausea, dizziness,

pulmonary edema possibly death. LD/TD no data found. OSHA PEL/ACGIH TLV not established for

sodium hydrosulfide; OSHA PEL/ACGIH TLV (H 2S) 10 ppm, 15 ppm STEL. No evidence of

carcinogenicity.



SPECIAL PRECAUTIONS

Wear goggles and rubber gloves while handling. Use adequate ventilation or suitable respirator

to avoid inhalation of fumes. Avoid all contact. Store in well sealed containers in a cool, dry

area.



FIRST AID

Wash contact area thoroughly with water. If eye irritation persists, see a physician. If

swallowed, give water or milk and get medical attention. Do NOT induce vomiting. Inhalation -

remove to fresh air, give oxygen or respiration as needed. Get medical attention.



SPILLS & LEAKS

Take up spill with absorbent. Ventilate area. Wash up thoroughly with water. Disposal to

hazardous waste.





CATALOG #                                                    PREPARED BY                   DATE

3574                                                             MDM                 September 3, 2004
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