The following detailed information of  barium diphenylamine sulfonate are provided by Hangzhou Chemfar Ltd., which has more than 20 years' experience focused on providing integrated development and manufacturing service to the pharmaceutical and fine chemical industry.

1. Product Identification

Synonyms: Benzenesulfonic acid, 4-(phenylamino)-barium salt; Barium diphenylaminesulfonate;
redoxindicator; N-Phenylsulfonic Acid, barium salt; 4-Diphenylamine-4-Sulfonic Acid, Barium Salt.
CAS No.: 6211-24-1 Molecular Weight: 633.90 Chemical Formula: (C₁₂H₁₁NO₃S)₂.Ba
Product Codes: 2-14725

2. Composition/Information on Ingredients
Ingredient                                                                CAS No             Percent                Hazardous
4-Diphenylamine-4-sulfonic Acid Barium Salt              6211-24-1               100%                         Yes
 

3. Hazards Identification
Emergency Overview: CAUTION! MAY BE HARMFUL IF SWALLOWED, INHALED OR
ABSORBED THROUGH SKIN. MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY
TRACT. MAY AFFECT BLOOD SYSTEM.
Health Rating: 1 - Slight Flammability Rating: 0 - None
Reactivity Rating: 0 - None Contact Rating: 1 - Slight
Lab Protective Equip: Goggles; Gloves; Lab Coat Storage Color Code: Blue (health)
Potential Health Effects:
The health effects of this substance have not been thoroughly investigated.
Inhalation: Inhalation of dusts of a comparable compound may cause irritation to the respiratory tract and
cause moderate systemic effects such as methemoglobinemia by absorption.
Ingestion: Comparable compounds are moderately toxic by ingestion and can cause blood circulation
problems.
Skin Contact: Comparable compounds cause irritation and may be absorbed through the skin.
Eye Contact: May cause irritation.
Chronic Exposure: No information found.
Aggravation of Pre-existing Conditions: 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.
Ingestion: Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an REAGENTS, INC.-MSDS— BARIUM DIPHENYLAMINE SULFONATE PAGE 2
unconscious person. Get medical attention.
Skin Contact: In case of contact, immediately flush skin with plenty of soap and water for at least 15 minutes.
Remove contaminated clothing and shoes. Wash clothing before reuse. Get medical attention if irritation or
redness develops or persists.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids
occasionally. Get medical attention immediately.

5. Fire Fighting Measures
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.

6. Accidental Release Measures
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Pick
up and place in a suitable container for reclamation or disposal, using a method that does not generate dust.

7. Handling and Storage
Keep in a tightly closed container. Store 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 (vapors, liquid); observe all warnings and precautions listed for the product.

8. Exposure Controls/Personal Protection
Airborne Exposure Limits: ACGIH Threshold Limit Value (TLV): 0.5 mg/m³
TWA (as Barium compound); -
OSHA (PEL): 0.5 mg/m³
TWA (as Barium compound).
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures
below the Airborne Exposure Limits.
Personal Respirators (NIOSH Approved): Not expected to require personal respirator usage. If the exposure
limit is exceeded, a half-face dust/mist respirator may be worn for up to ten times the exposure limit or the
maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is
lowest. A full-face piece dust/mist respirator may be worn up to 50 times the exposure limit, or the maximum
use concentration specified by the appropriate regulatory agency, or respirator supplier, whichever is lowest.
Skin Protection: Gloves and lab coat, apron or coveralls.
Eye Protection: Use chemical safety goggles and/or a full face shield where splashing is possible. Maintain eye
wash fountain and quick-drench facilities in work area.

9. Physical and Chemical Properties
Appearance: Gray crystals. Odor: No information found.
Solubility: Slightly soluble in water. pH: No information found.
% Volatiles by volume @ 21C (70F): 0 Boiling Point: Decomposes.
Melting Point: 300C (572 oF).
Vapor Density (Air=1): Negligible.

10. Stability and Reactivity
Stability: Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products: Burning may produce carbon monoxide, carbon dioxide, sulfur oxides,
and nitrogen oxides.
Hazardous Polymerization: Will not occur.
Incompatibilities: Strong oxidizers.
Conditions to Avoid: Incompatibles, excessive heat.REAGENTS, INC.-MSDS— BARIUM DIPHENYLAMINE SULFONATE

11. Toxicological Information
No LD50/LC50 information found. Barium diphenylamine sulfonate is not known, nor anticipated to be,
carcinogenic. It has not been assigned an IARC category.

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
facility. 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
TSCA: CAS# 6211-2 4-1 is listed on the TSCA inventory.
Section 12b: Not listed.
CERCLA Hazardous Substances and corresponding RQs: Not listed.
SARA Section 302 Extremely Hazardous Substances: Not listed.
Section 313: This material contains Barium Diphenylamine Sulfonate (listed as Barium), 100%, (CAS#
6211-2 4-1) which is subject to the reporting requirements of Section 313 of SARA Title III and 40 CFR
Part 373.
Canada - DSL/NDSL: CAS# 6211-24-1 is listed on Canada's DSL List.
Canada – WHMIS: This product has a WHMIS classification of D2B. This product has been classified in
accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of
the information required by those regulations.
Canadian Ingredient Disclosure List: CAS# 6211-2 4-1 is not listed.

16. Other Information
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0
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.