REAGENTS, INC.--MSDS--MAGNESIUM ACETATE TETRAHYDRATE                                               PAGE -1-





                 MAGNESIUM ACETATE, TETRAHYDRATE



1. Chemical Product And Company Identification

Company's Name: REAGENTS, INC.

Company's P. O. Box: 240746

Company's City: CHARLOTTE

Company's State: NC

Company's Country: US

Company's Zip Code: 28224

Company's Info Ph #: 704/554-7474, 800/732-8484

Emergencies, call CHEMTREC: 800-424-9300

Date MSDS Prepared: June 3, 2003

Synonyms: Acetic Acid Magnesium Salt Tetrahydrate; Magnesium Diacetate Tetrahydrate.

CAS No.: 16674-78-5

Molecular Formula: Mg(C 2 H3 O2 ).4H2 O

Molecular Weight: 214.45

Product Codes: 1-23760



2. Composition/Information on Ingredients

Ingredient                                  CAS No        Percent       Hazardous

---------------------------------------    ------------    -------       ---------

Magnesium Acetate, Tetrahydrate           16674-78-5       >98%           Yes



3. Hazards Identification

Emergency Overview

--------------------------

CAUTION! NUISANCE DUST. USE WITH ADEQUATE VENTILATION (AS PART OF GOOD

INDUSTRIAL AND PERSONNAL HYGENINE AND SAFETY PROCEDURE, AVOID ALL

UNNECESSARY EXPOSURE TO THIS CHEMICAL SUBSTANCE AND ENSURE ITS PROMPT

REMOVAL FROM EYES, SKIN, AND CLOTHING. WASH THOROUGHLY AFTER HANDLING).

-----------------------------------------------------------------------------------------------------------

Health Rating: 1 - Slight

Flammability Rating: 0 - None

Reactivity Rating: 0 - None

Contact Rating: 1 - Slight

Lab Protective Equip: GOGGLES; LAB COAT

Storage Color Code: Green (General Storage)

-----------------------------------------------------------------------------------------------------------

Potential Health Effects

----------------------------------

Eye: May cause eye irritation. Contact may cause transient irritation. The toxicological properties of

this material have not been fully investigated.

Skin: May cause skin irritation. The toxicological properties of this material have not been fully

investigated.

REAGENTS, INC.--MSDS--MAGNESIUM ACETATE TETRAHYDRATE                                               PAGE -2-



Ingestion: May cause irritation of the digestive tract. The toxicological properties of this substance

have not been fully investigated.

Inhalation: May cause respiratory tract irritation. The toxicological properties of this substance have

not been fully investigated.

Chronic: No information found.



4. First Aid Measures

Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give

oxygen. Get medical attention for any breathing difficulty.

Ingestion: Give large amounts of water to drink. Never give anything by mouth to an unconscious

person. Get medical attention for any gastrointestinal irritation.

Skin Contact: Immediately flush skin with plenty of water for at least 15 minutes while removing

contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get

medical attention if symptoms occur.

Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting upper and lower

eyelids occasionally. Get medical attention for any irritation.





5. Fire Fighting Measures

Autoignition Temperature: Not applicable.

Flash Point: Not applicable.

Explosion Limits, lower: Not available.

Explosion Limits, upper: Not available

Fire: Not considered to be a fire hazard.

Explosion: Not considered to be an explosion hazard.

Fire Extinguishing Media: Use any means suitable for extinguishing surrounding fire.

Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-

contained breathing apparatus with full-facepiece operated in the pressure demand or other positive

pressure mode.



6. Accidental Release Measures

Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section

8. Spills: Absorb with inert material and containerize for reclamation or disposal. Avoid generating

dusty conditions. Provide ventilation. Do not get water inside containers.



7. Handling and Storage

Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical

damage. Isolate from incompatible substances. Containers of this material may be hazardous when

empty since they retain product residues (dust, solids); observe all warnings and precautions listed for

the product.

REAGENTS, INC.--MSDS--MAGNESIUM ACETATE TETRAHYDRATE                                           PAGE -3-



8. Exposure Controls/Personal Protection

Airborne Exposure Limits: None established.

Ventilation System: A system of local and/or general exhaust is recommended to keep employee

exposures as low as possible. Local exhaust ventilation is generally preferred because it can control the

emissions of the contaminant at its source, preventing dispersion of it into the general work area. Please

refer to the ACGIH document, Industrial Ventilation, A Manual of Recommended Practices, most recent

edition, for details.

Personal Respirators (NIOSH Approved): For conditions of use where exposure to the dust or mist is

apparent, a half-face dust/mist respirator may be worn. For emergencies or instances where the

exposure levels are not known, use a full-face positive-pressure, air-supplied respirator. WARNING:

Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.

Skin Protection: Wear protective gloves.

Clothing: Wear appropriate protective clothing to prevent skin exposure.

Eye Protection: Use chemical safety goggles. Maintain eye wash fountain and quick-drench facilities in

work area.



9. Physical and Chemical Properties

Physical State: Solid

Color: White

Odor: Acetic odor, weak odor

pH: 7-9; 5% solution

Vapor Pressure: Negligible.

Vapor Density: 7.4

Evaporation Rate: Negligible.

Viscosity: Not available.

Boiling Point: Not available.

Freezing/Melting Point: 80o C

Decomposition Temperature: Not available.

Solubility in water: 120% in water.

Specific Gravity/Density: 1.454 (water=1)



10. Stability and Reactivity

Stability: Stable under ordinary conditions of use and storage.

Hazardous Decomposition Products: Carbon dioxide and carbon monoxide may form when heated to

decomposition.

Hazardous Polymerization: Will not occur.

Incompatibilities: No information found.

Conditions to Avoid: Incompatibles. Dust generation, moisture, excess heat.



11. Toxicological Information

LD50 /LC50 : Not available.

Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.

REAGENTS, INC.--MSDS--MAGNESIUM ACETATE TETRAHYDRATE                                       PAGE -4-



12. Ecological Information

Environmental Fate: No information found.

Environmental Toxicity: No information found.



13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved

waste disposal facility. Processing, use or contamination of this product may change the waste

management options. State and local disposal regulations may differ from federal disposal regulations.

Dispose of container and unused contents in accordance with federal, state and local requirements.



14. Transport Information

Not regulated.



15. Regulatory Information

FEDERAL

TSCA

CAS# 16674-78-5 is not on the TSCA Inventory because it is a hydrate.

It is considered to be listed if the CAS number for the anhydrous form is on the inventory

(40CFR720.3(u)(2)).

Health and Safety Reporting List: None of the chemicals are on the Health and Safety Reporting List.

Chemical Test Rules: None of the chemicals in this product are under a Chemical Test Rule.

Section 12b: None of the chemicals are listed under TSCA Section 12b.

TSCA Significant New Use Rule: None of the chemicals in this material have a SNUR under TSCA.

SARA

CERCLA Hazardous Substances and corresponding RQs: None of the chemicals in this material have

an RQ.

SARA Section 302 Extremely Hazardous Substances: None of the chemicals in this product have a

TPQ.

Section 313: No chemicals are reportable under Section 313.

Clean Air Act:

This material does not contain any hazardous air pollutants.

This material does not contain any Class 1 Ozone depletors.

This material does not contain any Class 2 Ozone depletors.

Clean Water Act:

None of the chemicals in this product are listed as Hazardous Substances under the CWA.

None of the chemicals in this product are listed as Priority Pollutants under the CWA.

None of the chemicals in this product are listed as Toxic Pollutants under the CWA.

OSHA:

None of the chemicals in this product are considered highly hazardous by OSHA.

Magnesium Acetate Tetrahydrate is not present on state lists from CA, PA, MN, MA, FL, or NJ.

California No Significant Risk Level: None of the chemicals in this product are listed.

United Kingdom Occupational Exposure Limits United Kingdom Maximum Exposure Limits Canada

None of the chemicals in this product are listed on the DSL/NDSL list.

WHMIS: Not available.

REAGENTS, INC.--MSDS--MAGNESIUM ACETATE TETRAHYDRATE                                              PAGE -5-



CAS# 16674-78-5 is not listed on Canada's Ingredient Disclosure List.

WHMIS: This MSDS has been prepared according to the hazard criteria of the Controlled Products

Regulations (CPR) and the MSDS contains all of the information required by the CPR.



16. Other Information

NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0

Label Hazard Warning: CAUTION! NUISANCE DUST. USE WITH ADEQUATE VENTILATION

(AS PART OF GOOD INDUSTRIAL AND PERSONNAL HYGENINE AND SAFETY PROCEDURE,

AVOID ALL UNNECESSARY EXPOSURE TO THIS CHEMICAL SUBSTANCE AND ENSURE ITS

PROMPT REMOVAL FROM EYES, SKIN, AND CLOTHING. WASH THOROUGHLY AFTER

HANDLING).

Label Precautions:

Avoid contact with eyes, skin and clothing.

Avoid breathing dust.

Keep container closed.

Use with adequate ventilation.

Wash thoroughly after handling.

Label First Aid: In case of contact, immediately flush eyes or skin with plenty of water for at least 15

minutes while removing contaminated clothing and shoes. Wash clothing before reuse. If inhaled,

remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. If

swallowed, give large amounts of water to drink. Never give anything by mouth to an unconscious

person. In all cases, get medical attention.

Product Use: Laboratory Reagent.

Disclaimer:

************************************************************************************

Reagents, Inc. provides the information contained herein in good faith but makes no representation

as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate

precautionary handling of the material by a properly trained person using this product. Individuals

receiving the information must exercise their independent judgment in determining its

appropriateness for a particular purpose. REAGENTS, INC. MAKES NO REPRESENTATIONS OR

WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY

WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE WITH

RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT TO WHICH

THE INFORMATION REFERS. ACCORDINGLY, REAGENTS, INC. WILL NOT BE

RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS

INFORMATION.

************************************************************************************