Borax MSDS sheet
This page was the response given to a woman who asked the question if there was anything else in 20 mule team borax except
borax - sodium tetraborate decahydrate.    The answer is no.
In shopping for borax powder one of the least expensive places I found was on at    10 pounds for $18, buy two and it is free shipping.

See my page at borax for why you want to add a small amount of this to your diet every day.

Material Safety Data Sheet
Sodium Tetraborate Decahydrate


ACC# 21010
Section 1 - Chemical Product and Company Identification

MSDS Name: Sodium Tetraborate Decahydrate
Catalog Numbers: S80172, B80, BP175 500, BP175-500, BP175500, S246-12, S246-212, S246-250LB, S246-500, S248-10, S248-3, S248-500, S249-500
Buffer Salt pH 9.18; Borax, Sodium Borate Decahydrate
Company Identification:

              Fisher Scientific
              1 Reagent Lane
              Fair Lawn, NJ 07410
For information, call:
Emergency Number:
For CHEMTREC assistance, call:
For International CHEMTREC assistance, call:

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
1303-96-4 Sodium Tetraborate Decahydrate 100 unlisted

Hazard Symbols:
None listed.
Risk Phrases:
None listed.

Section 3 - Hazards Identification


Appearance: white. May cause irritation. May cause eye and skin irritation. May cause respiratory and digestive tract irritation. May cause adverse reproductive effects based upon animal studies. Caution!
Target Organs: None.

Potential Health Effects
Eye: May cause eye irritation.
Skin: May cause skin irritation.
Ingestion: May cause irritation of the digestive tract. Human fatalities have been reported from acute poisoning.
Inhalation: May cause respiratory tract irritation.
Chronic: No information found.

Section 4 - First Aid Measures

Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Ingestion: Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water.
Inhalation: Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
Notes to Physician: Treat symptomatically and supportively.

Section 5 - Fire Fighting Measures

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media: Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or appropriate foam.

Section 6 - Accidental Release Measures

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation.

Section 7 - Handling and Storage

Handling: Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Do not breathe dust, vapor, mist, or gas. Keep container tightly closed. Avoid ingestion and inhalation.
Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Section 8 - Exposure Controls, Personal Protection

Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits
Chemical Name ACGIH NIOSH OSHA - Final PELs
Sodium Tetraborate Decahydrate 1 mg/m3 TWA (anhydrous); 5 mg/m3 TWA (decahydrate); 1 mg/m3 TWA (pentahydrate) 5 mg/m3 TWA none listed

OSHA Vacated PELs: Sodium Tetraborate Decahydrate: 10 mg/m3 TWA
Personal Protective Equipment
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin: Wear appropriate protective gloves to prevent skin exposure.
Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Section 9 - Physical and Chemical Properties

Physical State: Solid
Appearance: white
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Vapor Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: 1575 deg C @ 760.00mm Hg
Freezing/Melting Point:320 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Decomposition Temperature:Not available.
NFPA Rating: (estimated) Health: 2; Flammability: 0; Reactivity: 0
Explosion Limits, Lower:Not available.
Upper: Not available.
Solubility: soluble
Specific Gravity/Density:1.7300g/cm3
Molecular Formula:B4Na2O7.10H2O
Molecular Weight:381.36

Section 10 - Stability and Reactivity

Chemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid: Incompatible materials, dust generation, excess heat.
Incompatibilities with Other Materials: Strong oxidizing agents, strong acids.
Hazardous Decomposition Products: Irritating and toxic fumes and gases, oxides of boron.
Hazardous Polymerization: Will not occur.

Section 11 - Toxicological Information

CAS# 1303-96-4: VZ2275000
CAS# 1303-96-4:
Oral, mouse: LD50 = 2 gm/kg;
Oral, rat: LD50 = 2660 mg/kg;
CAS# 1303-96-4: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Epidemiology: No information available.
Teratogenicity: No information available.
Reproductive Effects: No information available.
Neurotoxicity: No information available.
Mutagenicity: No information available.
Other Studies: See actual entry in RTECS for complete information.

Section 12 - Ecological Information

No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

Shipping Name: No information available.       No information available.
Hazard Class:          
UN Number:          
Packing Group:          

Section 15 - Regulatory Information


CAS# 1303-96-4 is listed on the TSCA inventory.
Health & Safety Reporting List
None of the chemicals are on the Health & 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.

Section 302 (RQ)
None of the chemicals in this material have an RQ.
Section 302 (TPQ)
None of the chemicals in this product have a TPQ.
SARA Codes
CAS # 1303-96-4: chronic.
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.
None of the chemicals in this product are considered highly hazardous by OSHA.
CAS# 1303-96-4 can be found on the following state right to know lists: California, New Jersey, Florida, Pennsylvania, Minnesota, Massachusetts.
California No Significant Risk Level: None of the chemicals in this product are listed. European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
Not available.
Risk Phrases:

Safety Phrases:

WGK (Water Danger/Protection)

CAS# 1303-96-4: 1
CAS# 1303-96-4 is listed on Canada's DSL List. CAS# 1303-96-4 is listed on Canada's DSL List.
This product has a WHMIS classification of D2A, D2B.
CAS# 1303-96-4 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 1303-96-4: OEL-AUSTRALIA:TWA 5 mg/m3 OEL-BELGIUM:TWA 5 mg/m3
WA 5 mg/m3 OEL-SWEDEN:TWA 2 mg/m3;STEL 5 mg/m3;Skin OEL-SWITZERLAND:
M check ACGI TLV

Section 16 - Additional Information

MSDS Creation Date: 7/06/1999
Revision #4 Date: 7/20/2001
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages