This dye is manufactured from the dried roots of Rheum which is a traditional natural dye from China and Nepal. Rhubarb natural dye powder is easy to use and dyes excellent on protein and cellulose fibers alike.

When dyeing with rhubarb natural dye powder, you should always do so in a well ventilated space and not inhale the fumes. Rhubarb (and the rhubarb family) roots contain a lot of oxalic acid which is not good to inhale.

Use at 5-10% WOF.

Active dye component; Emodin (anthraquinone), chrysophanol, oxalic acids, tannins.

Ph sensitive;

brick red (with an alkali modifier)

golden yellows (with an acidic modifier)

Green with ferrous sulfate post mordant.

Deep golden with copper mordant.

Bright yellow with alum mordant and a bit of vinegar in the dye bath.

100 grams of rhubarb will easily dye 1 kg of fiber.

Overdye rhubarb dyed fabrics with indigo for deep emerald greens.

Sustainably and renewable source, fair trade supply.

Rhubarb Powdered roots

From $7.90

Quantity

Storage

Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Maintain a constant temperature not to exceed 24° C. (75° F.). 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.

Heath and Safety

Do not ingest. Do not breathe dust. Wear protective gloves, safety goggles and a dust mask when handling fine dye powders and mordants.

Possibly harmful when swallowed or inhaled

Environmental Hazards

Natural dye powders are no known environmental concern. Mordants and mordanted dye baths should be disposed in a sensible way according to your local waste disposal laws.
Packaging

Natural dyes and mordants are shipped in a special packaging made from recypcled materials with a re-usable zipper.

Your pouches are shipped in either a flat padded envelope or a cardboard box depending on quantity and size.

We try to use reduce packaging and use recycled materials where possible.

Shipping Times

Most packages are sent the same day or next day of order.

Shipping times depend per country and are out of my hands once I send the parcel. Averages to the United States have been 6-14 business days.

Shipping rates.

Shipping is according to the total weight of your parcel including packaging materials.

ALL packages are shipped with a tracking number. The tarcking number will be updated by mail once available.

Please note that most tracking is only available from the moment the parcel physically leaves the country. This may take a few days.

You will see your total shipping rate in your order.

At this moment it is not possible to ship your dye materials by EMS.
MSDS Rhubarb Powder

NATURAL DYE MATERIAL SAFETY DATA SHEET

SECTION 1--COMPANY IDENTITY

DekelDyes

Emek Ayalon 14A apt 7

Shoham / Israel

+972525410033

Trade/Common Names

Name Himalayan Rhubarb

% CAS No.        Unknown

Botanical Name       Rheum Emodi

RTECS No.       Not Listed

INCI name;        Rheum Emodi Root Extract

CosIng ID:        89679

SECTION 3--HAZARDS IDENTIFICATION

No toxic effects known from dust inhalation or ingestion. Inhalation may cause coughing and sneezing. Avoid breathing dust from powders. Avoid contact with eyes. Contact with skin will cause temporary discoloration. Wash thoroughly after handling.

NFPA Rating:        Health N/A

Flammability 1        Reactivity 0

(Slight) (Insignificant)

HMIS Rating:

Health        1 (Slight)

Flammability    0 (Insignificant)

Reactivity   N/A

SECTION 4--FIRST AID MEASURES

Inhalation: Remove person to fresh air. If breathing difficulty occurs, or coughing persists, get prompt medical attention.

Skin/Eye Contact: Flush eyes with plenty of clean water for at least 15 minutes. If irritation persists, get medical attention. Wash skin thoroughly with soap and warm water to remove temporary staining and use emollients if needed.

Ingestion (of quantity): If person is conscious, give water, induce vomiting. Get medical attention.

SECTION 5--FIRE FIGHTING MEASURES

Flash Point: 950°F

Extinguishing Media:

Special Fire Fighting Procedures & Equipment: Hazardous Incomplete Combustion Products: Unusual Fire & Explosion Hazards:       Unknown

Flammable Limits: 950°F

Water, carbon dioxide or dry chemical Wear SCBA

May form explosive mixture like all organic dust

SECTION 6--ACCIDENTAL RELEASE MEASURES

Steps to be taken if material is spilled: On Highway: Per Federal and State regulation.

Disposal Methods: Sweep and pick up for disposal. Sweep and pick up for disposal.

SECTION 7--HANDLING AND STORAGE

PROCEDURE FOR HANDLING

● Avoid all personal contact, including inhalation.

● Wear protective clothing when risk of exposure occurs.

● Use in a well-ventilated area.

● DO NOT allow material to contact humans, exposed food or food utensils.

● Avoid contact with incompatible materials.

● When handling, DO NOT eat, drink or smoke.

● Keep containers securely sealed when not in use.

● Avoid physical damage to containers.

● Always wash hands with soap and water after handling.

● Work clothes should be laundered separately.

● Launder contaminated clothing before re-use.

● Use good occupational work practice.

● Observe manufacturer's storing and handling recommendations.

● Empty containers may contain residual dust which has the potential to accumulate

following settling. Such dusts may explode in the presence of an appropriate ignition

source.

● Do NOT cut, drill, grind or weld such containers

● In addition ensure such activity is not performed near full, partially empty or empty

containers without appropriate workplace safety authorization or permit.

RECOMMENDED STORAGE METHODS

● Polyethylene or polypropylene container.

● Check all containers are clearly labelled and free from leaks.

STORAGE REQUIREMENTS

● Store in original containers.

● Keep containers securely sealed.

● Store in a cool, dry, well-ventilated area.

● Store away from incompatible materials and foodstuff containers.

● Protect containers against physical damage and check regularly for leaks.

● Observe manufacturer's storing and handling recommendations.

SECTION 8--EXPOSURE CONTROL/PERSONAL PROTECTION

Respiratory Protection:    Dust respirator when handling, sifting, measuring, or dissolving powder.

Eye Protection:        Safety glasses when handling, sifting, measuring, or dissolving powder

Protective Clothing:    Appropriate clean clothing to prevent skin contact.

Personal Hygiene:    Wash hands after exposure.

SECTION 9--PHYSICAL AND CHEMICAL PROPERTIES

Boiling Point:           N/A

Melting Point:           N/A

Vapor Pressure:            N/A

Vapor Density:            N/A

Specific Gravity:            N/A

pH (1% solution):        3.0

Physical Appearance:        Powder

Solubility:           Completely soluble in water

SECTION 10--STABILITY AND REACTIVITY DATE

Stability:            At ambient temperatures:    Stable

At elevated temperatures:        Stable to decomposition

Conditions to avoid:        None

Hazardous polymerizations will NOT occur.

SECTION 11--TOXICOLOGICAL DATA

Classification (29CFR 1910.1200):        Non hazardous

Toxicity and Sensitivity Data:

Ingestion Oral LD-50:           N/A

Absorption Dermal:            N/A

Irritation:                   N/A

Inhalation Rate:               N/A

Carcinogenicity:               This material is not listed as a carcinogen by OSHA, NTP, IARC

Primary Routes:               Inhalation, eyes

Signs and Symptoms of Exposure (progressive):

   ● Inhalation: Sneezing, mucous flow, coughing

   ● Skin/eyes: Skin coloring, eyes irritation, tearing

   ● Ingestion: None

   ● Aqueous solution discolors skin, but no permanent adverse effects. No toxic effect known from dust            inhalation or ingestion.

SECTION 12--ECOLOGICAL CONSIDERATIONS

Further ecological effects:

Natural product. Environmentally not hazardous.

Water hazard class: 0

SECTION 13--DISPOSAL CONSIDERATIONS

Disposal Instructions

All waste must be handled in accordance with local, state and federal regulations.

Legislation addressing waste disposal requirements may differ by country, state and/ or territory. Each user must refer to laws operating in their area. In some areas, certain wastes must be tracked.

A Hierarchy of Controls seems to be common - the user should investigate:

● Reduction

● Reuse

● Recycling

● Disposal (if all else fails)

This material may be recycled if unused, or if it has not been contaminated so as to make it unsuitable for its intended use. Shelf life considerations should also be applied in making decisions of this type. Note that properties of a material may change in use, and recycling or reuse may not always be appropriate.

DO NOT allow wash water from cleaning equipment to enter drains. Collect all wash water for treatment before disposal.

● Recycle wherever possible.

● Consult manufacturer for recycling options or consult Waste Management Authority for

disposal if no suitable treatment or disposal facility can be identified.

● Dispose of by: Burial in a licensed land-fill or Incineration in a licensed apparatus (after

admixture with suitable combustible material)

● Decontaminate empty containers. Observe all label safeguards until containers are

cleaned and destroyed.

SECTION 14--TRANSPORT CONSIDERATIONS

NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS: DOT, IATA, IMDG

SECTION 15--REGULATORY INFORMATION

THIS MATERIAL IS NOT SUBJECT TO REGULATION.

SECTION 16--OTHER INFORMATION LIMITED EVIDENCE

● Cumulative effects may result following exposure*. * (limited evidence).

Reasonable care has been taken in the preparation of this information, but the author makes no warranty of merchantability or any other warranty, expressed or implied, with respect to this information. The author makes no representations and assumes no liability for any direct, incidental or consequential damages resulting from its use.

● The (M)SDS is a Hazard Communication tool and should be used to assist in the Risk Assessment. Many factors determine whether the reported Hazards are Risks in the workplace or other settings. Risks may be determined by reference to Exposures Scenarios. Scale of use, frequency of use and current or available engineering controls must be considered.