Wood Ash (for material sold in the United States)

Weyerhaeuser

Revision date : 2025-08-12

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GHS08 GHS05 GHS07
Health risk rating 5
Safety risk rating 1
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

7631-86-9

Name of the chemical

Silver adsorbed on silicon dioxide

Concentration

5-50 1-10

EC/CAS

14808-60-7

Name of the chemical

Silica, crystalline

Concentration

<0.1-1

EC/CAS

1344-28-1

Name of the chemical

aluminium oxide

Concentration

1-10

EC/CAS

1305-78-8

Name of the chemical

Calcium oxide

Concentration

30-70

EC/CAS

1309-48-4

Name of the chemical

magnesium oxide

Concentration

5-10

EC/CAS

7439-96-5

Name of the chemical

Manganese

Concentration

0.1-1

EC/CAS

1310-58-3

Name of the chemical

potassium hydroxide

Concentration

<10-30

EC/CAS

1310-73-2

Name of the chemical

sodium hydroxide

Concentration

<1-5

General Information

Revision date

2025-08-12

Product name

Wood Ash (for material sold in the United States)

Product Synonyms

Biomass Fuel Ash, Wood Boiler Ash, Wood Fly Ash, Fly Ash, CDK Ash, Batch Kiln Ash

1.2.1 Relevant identified uses

Soil amendment and treatment

Manufacturer Name

Weyerhaeuser

Icons in SDS

GHS05 GHS07 GHS08 M004 M009 M010 M011 M017 M022

Company Information

company name

Weyerhaeuser

GHS Information

Signal word

DANGER

Hazard Codes

Hazard statements (CLP)

H314, H332, H335, H350, H372

Hazard statements

Code

Statements

H314

Causes severe skin burns and eye damage

Section 2

SECTION 2: Hazards identification

Signal word

DANGER Classification Hazard Statement(s) Pictogram

Health hazards

Carcinogen - Category 1A Crystalline silica may cause lung H350) cancer Specific Target Organ May Cause Damage to The Toxicity - Repeated Exposure, Inhalation Respiratory System Through Category 1) Prolonged or Repeated H372) Exposures If Inhaled Eye corrosion - Category 1 Causes skin burns and serious H314) eye damage Skin irritant - Category 2 H314) Hazard(s) Identification (cont’d.) Specific Target Organ May cause respiratory irritation Toxicity (STOT) H335) Acute toxicity - Category 4 Corrosive, harmful if swallowed H332)

Physical hazards

Due to variable combustion conditions, wood ash may contain Combustible Dust varying amounts of residual None

Prevention

P202: Do not handle until all safety precautions have been read and understood. P210: Keep away from sparks flames or other heat sources. P243: Take precautionary measures against static discharge. P260, P261 and P262: Avoid breathing dust. In case of inadequate ventilation wear an approved respirator suitable for conditions of use. P271: Use outdoors or in a well-ventilated area. P280: Wear appropriate protective equipment for eye and skin exposure. P362 and P363: Take off contaminated clothing and wash before reuse.

Response

P304+P340+P313: If inhaled and breathing becomes difficult, remove person to fresh air and keep comfortable for breathing. If symptoms persist, call a doctor or other qualified medical professional. P333+P313: If skin irritation or rash occurs get medical advice/attention. P352+P264: If on skin wash with plenty of soap and water. P362+P364: Take off contaminated clothing and wash before reuse. P305+P351+P338: If in eyes, rinse cautiously for several minutes. Remove contact lenses if present and easy to do so.

Disposal

P501: Dispose of in accordance with federal, state, and local regulations. Ingredients of Unknown Acute Toxicity (>1%): NAP

2.1 Classification of the substance or mixture

Hazard Statement(s) Pictogram HEALTH HAZARD(S) Carcinogen - Category 1A Crystalline silica may cause lung (H350) * cancer Specific Target Organ May Cause Damage to The Toxicity - Repeated Exposure, Inhalation Respiratory System Through (Category 1) Prolonged or Repeated (H372) Exposures If Inhaled Eye corrosion - Category 1 Causes skin burns and serious (H314) * eye damage Skin irritant - Category 2 (H314) 2. Hazard(s) Identification (cont’d.) Specific Target Organ May cause respiratory irritation Toxicity (STOT) (H335) Acute toxicity - Category 4 Corrosive, harmful if swallowed (H332) PHYSICAL HAZARD(S) Due to variable combustion conditions, wood ash may contain Combustible Dust varying amounts of residual None (OSHA Defined Hazard) combustible dust. If dry and converted to small particles during further processing, handling, or by other means, may form combustible dust concentrations in air. *Hazard codes (GHS) HMIS Rating (Scale 0-4): Health = 3* Fire = 1 Physical Hazard = 1 NFPA Rating (Scale 0-4): Health = 3 Fire = 1 Reactivity = 0

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