Greetings and Happy Labor Day Weekend,

Should a compound (ionic liquid) with the following SDS statement be safe to use in small amounts, e.g., 5 g, in a fume hood, without a respirator?  We would just be making solutions and running them through a viscometer. Students are enthusiastic about this project, but I am cautious.   The highlighted info in the SDS statement below about a risk assessment seems a bit cryptic.

SECTION 8: Exposure controls/personal protection
8.1 Control parameters
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
8.2 Exposure controls
Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands
before breaks and at the end of workday.
Personal protective equipment
Eye/face protection
Safety glasses with side-shields conforming to EN166 Use equipment for eye
protection tested and approved under appropriate government standards such as
NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove
removal technique (without touching glove's outer surface) to avoid skin contact
with this product. Dispose of contaminated gloves after use in accordance with
applicable laws and good laboratory practices. Wash and dry hands.
Body Protection
Impervious clothing, The type of protective equipment must be selected according
to the concentration and amount of the dangerous substance at the specific
workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-
face respirator with multi-purpose combination (US) or type ABEK (EN 14387)
respirator cartridges as a backup to engineering controls. If the respirator is the sole
means of protection, use a full-face supplied air respirator. Use respirators and
components tested and approved under appropriate government standards such as
NIOSH (US) or CEN (EU).
 

Thank you!

Ruth Ann