MATERIAL SAFETY DATA SHEET 

(Hollow Carbon Fibers, Molecular rebar) 

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION 

Product Name: (Hollow Carbon Fibers) (MWCNT) (Molecular rebar)

Company: 

2. COMPOSITION/INFORMATION ON INGREDIENTS 

 Ingredient(s) CAS Number %(by weight) 

>95% 308068-56-6 

Other inorganic substance - <5% 

3. HAZARDS IDENTIFICATION 

Potential Health Effects 

General Overview 

Product is in the form of odorless black powder and is not expected to cause environmental hazard under 

good industrial hygiene plan. 

Dusts from handling or processing may cause eye, skin and respiratory tract irritation when exposed. 

Product contains small amount of metal oxides and consequently may produce an allergic reaction. 

Wear appropriate personal protective equipment. Keep the product handling in confined space. Proper air 

ventilation system is advised in handling the product. 
Eye 

Contact with the eyes may cause irritation due to abrasive action of the dust. Not expected to cause 

prolonged or significant eye irritation. 

Skin 

There is no known hazard, but may be mildly irritating to the skin. It is not expected to cause prolonged or 

significant irritation, even at high concentration. Not expected to be absorbed through the intact skin. 

Inhalation 

The dust from this material may cause respiratory irritation. 

Ingestion 

No known hazards. The product is not expected to be harmful if swallowed. 

Acute and Chronic Health Effects 

High concentration of dusts may be irritating to eyes, skin, mucus membranes and respiratory tract. No 

applicable chronic information at this moment, but none of the components is known to be a carcinogen or a 

suspected carcinogen. 

Target Organ Effects 

No data 

Developmental Information 

There are no data available for assessing risk to the fetus from maternal exposure to this material. 

4. FIRST AID MEASURES 

General 

Remove all contaminated clothing immediately. 

Eyes 

Hold the eyes open and rinse with water for a sufficiently long period of time (at least 10 minutes). Obtain 

medical attention if pain, blinking or redness persists. 

Skin 

In case of skin contact, rinse thoroughly with soap and plenty of water. Obtain medical attention if irritation 

persists. 
Inhalation 

If dusts are inhaled, move the person into fresh air, keep warm and allow to rest. If breathing is difficult, 

oxygen may be administered and medical attention should be obtained. 

Ingestion 

Rinse mouth with water and obtain medical attention. 

5. FIRE FIGHTING MEASURES 

Flash Point 

Not applicable 

Explosive Limit 

No data 

Auto ignition Temperature 

No data 

Hazardous Products of Combustion 

Carbon oxide, small quantity of metal oxides 

Fire and Explosion Hazards 

No special fire hazards are known to be associated with this product 

Extinguishing Media 

Water, Carbon Dioxide, Dry Chemical, or Foam 

Fire Fighting Instructions 

Wear a self-contained breathing apparatus for fire fighting 

6. ACCIDENTAL RELEASE MEASURES 

Personal precautions 

Equip cleanup crew with proper protection. Ensure adequate ventilation. 
Environmental precautions 

Prevent entry to sewers and public waters 

Spill Procedures 

Sweep or vacuum according to normal housekeeping practices 

7. HANDLING AND STORAGE 

General 

Keep in closed container. Additional sealing may prevent accidental dust release 

Precautions in handling and storage 

Good ventilation of the workplace required. Contact with the skin and the eyes as well as inhalation of dusts 

must be avoided 

Storage 

Keep only in the original container in a dedicated place 

Handling 

Handle in accordance with good industrial hygiene and safety procedures 

8. EXPOSURE CONTROLS/PERSONAL PROTECTION 

Eye Protection 

Chemical goggles, safety glasses or full-faced shields 

Skin Protection 

Suits, gloves and other items of protective clothing. Protecting gloves including, for example: nitrile, latex, 

and rubber 

Respiratory Protections 

Wear suitable respiratory equipment with High Efficiency Particulate Air Filter (HEPA), such as NIOSH 

P100 filter, or air-supplied respirators when directly exposed or handling the powder 

Engineering Controls 

Provide sufficient mechanical (general and/or local exhaust) ventilation for dust 
Exposure Guidelines 

In case of contact, ensure prompt removal from eyes, skin and clothing. Wash hands and other exposed 

areas with mild soap and water before eat, drink or smoke and when leaving work 

9. PHYSICAL AND CHEMICAL PROPERTIES 

10. STABILITY AND REACTIVITY 

Stability 

Thermal decomposition or combustion may produce smoke of carbon oxide and metal oxide 

Incompatibility 

Avoid contacting strong oxidizing and reducing agents. No hazardous reaction when used as directed. 

Conditions to avoid 

Avoid excessive heating (above 400 C) in oxygen rich atmosphere 

11. TOXICOLOGICAL INFORMATION 

Rat oral LD50 [mg/kg] 

No data 

Rabbit dermal LD50 [mg/kg] 

No data 

Boiling Point: Not applicable Appearance: Black Powder

Specific Gravity: >1 @ 77 F Soluble in Water: Insoluble

Melting Point: No data Odor: Odorless
Rat inhalation LC50 [mg/l/4h] 

No data 

Health Hazard Data 

Experimentations performed on reconstituted human epidermis have shown no sign of toxicity of even very 

large doses (full skin coverage for 24 hours) of oxidized carbon nanotubes (results to be published). 

However, preliminary reports, based on pre-studies on rats which were instilled with severe, high-level 

doses of oxidized carbon nanotubes material, indicate that, if inhaled in large quantities, oxidized carbon 

nanotubes are potentially toxic for humans. Such an exposure scenario is however unrealistic. Nevertheless 

it is recommended that respiratory protection should be used to prevent inhalation exposure to oxidized 

carbon nanotubes. 

12. ECOLOGICAL INFORMATION 

The product is not expected to present environmental hazard. 

13. DISPOSAL CONSIDERATION 

Disposal 

As prepared the product is considered as non hazardous. It can then be either disposed in an approved 

landfill or destroyed by incineration. Volatile dust must be collected during incineration. Liquids containing 

significant amount of oxidized carbon nanotubes must be filtered before being released to the sewer. 

14. TRANSPORT INFORMATION 

Not regulated. Use precaution during transport in order to prevent accidental spill. Not dangerous cargo. 

Keep separated from foodstuffs. 

15. REGULATORY INFORMATION 

Symbol(s): None 

R Phrase(s): None 

S Phrase(s): S22 Do not breathe dust 

S29 Do not empty into drains 
S36/37/39 Wear suitable protective clothing, gloves, eye/face protection 

16. OTHER INFORMATION 

Further information: None 

The information accumulated herein is believed to be accurate but is not warranted to be whether 

originating with the company or not. Recipients are advised to confirm in advance of need that the 

information is current, applicable, and suitable to their circumstances.