This is powdered extract of fresh leaves of Isatis tinctoria, also called woad (/ˈwoʊd/), dyer's woad, or Jerusalem Asp. In France it is called pastel and in German Waid. In Dutch we call it wede.

Woad is a flowering plant in the family Brassicaceae, a biennal herb up to 1.60 meter tall. Woad is also the name of a blue dye produced from the leaves of the plant.

Woad contains the indican, Isatan A and Isatan B, all precursors of indigotin. It also contains some Indirubin. In the past, woad was formed into woad balls that would cause fermentation to take place, thus forming the indigotin needed to dye blue. Nowadays woad extract is produced by alkaline hydrolisation just like regular indigo powder.

I have written an extensive blog about indigotin extraction that you can read here.

The Sussex Soap Company made a beautiful soap using our Woad powder, you can watch the instructional video here.

Ingredients (Common Name): Woad Powder
Ingredients (INCI Name): ISATIS TINCTORIA
Shelf Life: indefinetely
Recommended for Cold Process: yes
Recommended for Melt and Pour: yes
Instructions; woad powder for soap can be added at trace, to lye water or infused in oil. Forced gel will give more intense colours. Mix powder with water (1/2 teaspoon of powder with one spoon of water, or mix with oil before adding to soap.

Woad Extract Powder (Isatis Tinctoria)

From $11.90

25 Grams

Quantity

Ingredients (Common Name): Woad Powder

Ingredients (INCI Name): ISATIS TINCTORIA

Shelf Life: indefinetely

Recommended for Cold Process: yes

Recommended for Melt and Pour: yes

Instructions; woad powder for soap can be added at trace, to lye water or infused in oil. Forced gel will give more intense colours. Mix powder with water (1/2 teaspoon of powder with one spoon of water, or mix with oil before adding to soap.
SAFETY DATA SHEET

1 — IDENTIFICATION OF SUBSTANCE/PREPARATION AND OF THE COMPANY UNDERTAKING

Trading Name   :   Woad Extract

Company           DekelDyes

               Emek Ayalon 14A

               Shoham / Israel

               +972525410033

Classification of the Substance or Mixture

Classification according to EC Regulation 1272/2008

Classification according to EC Regulation No. 67/548 or No. 1999/45

2 — COMPOSITION, INFORMATION ON INGREDIENTS

This is a natural product and processing/manufacturing is done on the traditional way and no chemical/ solvent treatment is done during the processing or at the final stages.

Botanical Name: Isatis Tinctoria

Common Name/Synonyms: Woad powder, Woad extract, Indigotin from Woad

C.I. Number: C.I. Vat Blue 1

Product Code CAS NO. 482-89-3

Appearance: Dark Blue powder

Preparation: It is prepared from leaves of Isatis Tinctoria by natural fermentation process.

Part used: Leaves.

3 — Hazards Identification

This product does not require classification and labelling as hazardous according to CLP/GHS.

The material is not subject to classification according to EC lists.

Dark Blue powder. Typical

Body tissue irritant. Avoid contact with all body tissues.

Health-0

Flammability-0

Reactivity-0

Exposure-0

Storage-0

0 is low hazard, 3 is high hazard

4 — First Aid Measures

Call a physician, seek medical attention for further treatment, observation & support after first aid.

Inhalation: Remove to fresh air at once. If breathing has stopped give artificial respiration immediately.

Eye: Immediately flush with fresh water for 15 minutes.

External: Wash continuously with mild soap and fresh water for 15 minutes.

Internal: Wash mouth out with water. Call a physician or poison control at once.

5 — Fire Fighting Measures & Instructions:

Non flammable solid. When heated to decomposition, emits acrid and irritating fumes. Use triclass, dry chemical fire extinguisher. Firefighters should wear self contained breathing apparatus

6 — Accidental Release Measures

Use mask, hand gloves and safety goggles. Restrict unprotected personnel from area. Sweep up, place in sealed bag or container and dispose. Ventilate area and wash spill site after material pickup is complete. See Sections 8 and 13 for further information.

7 — Handling and Storage

Suggested Storage Pattern: Store with dyes, indicators, and stains. Store in a dry place. Keep container tightly closed.

8 — Exposure Controls , Personal Protection

Avoid contact with eyes, skin and clothing. Wear Dust masks, Safety goggles, PVC hand gloves and Safety shoes Protective suit

9 — Physical and Chemical Properties

Appearance:         Dark Blue powder. Odorless.

Solubility In Water: 2.11

Heavy Metal Content: Zn=5.26 Cr= na Absent = Pb, As, Cu, Hg, Ni, Cd - NA.

Moisture Content: 3.51

Ph Of 1% Solution: 8.30

Speciality : Colour changes to greenish yellow in alkaline medium.

Main colouring content: Indigotin

10 — Stability and Reactivity

Avoid contact with strong oxidizers. The Shelf life is Indefinite, protect from light.

11 — Toxicological Information

ORL-RAT LD50: N.A.

IHL-RAT LC50: N.A.

SKN-RBT LD50: N.A.

Acute effects: Irritant, causes eye and skin irritation.

Chronic effects: N.A.

Target organs: N.A.

N.A. = Not available, not all health aspects of this substance have been fully investigated.

12 — Ecological Information

Data not yet available.

13 — Disposal Considerations

Please consult with state and local regulations.

14 — Transport Information

Shipping: Non restricted as per IATA / ICAO regulations.

Hazard Class: N/A

UN Number: N/A

N/A = Not applicable

15 – Regulatory Information

This product in produced from the plant calledI satis Tinctoria. It is an agricultural product. It can be used for dyeing fabrics and making soaps.

16 — Other Information

This Material Safety Data Sheet (MSDS) is for guidance and is based upon information and tests believed to be reliable. No guarantee of the accuracy or completeness of the data and shall not be liable for any damages relating thereto. The data is offered solely for your consideration, investigation, and verification.