ICSC 0811 - ZINC CHROMATE

ZINC CHROMATE	ICSC: 0811 (June 2012)
Chromium zinc oxide Zinc tetraoxychromate Chromic acid, zinc salt (1:1)

CAS #: 13530-65-9

UN #: 3288

EC Number: 236-878-9

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. Risk of explosion on contact with reducing agents or organic materials.	NO contact with incompatible materials: See Chemical Dangers	In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. See Effects of long-term or repeated exposure.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness.	Wear safety goggles or eye protection in combination with breathing protection if powder.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	See Effects of long-term or repeated exposure.	Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Do NOT absorb in saw-dust or other combustible absorbents. Vacuum spilled material with specialist equipment. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria DANGER Causes mild skin irritation May cause an allergic skin reaction May cause cancer May damage fertility or the unborn child May cause damage to organs through prolonged or repeated exposure Very toxic to aquatic life with long lasting effects Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: II
STORAGE
Well closed. Separated from food and feedstuffs, reducing agents and organic compounds. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
PACKAGING
Do not transport with food and feedstuffs.

ZINC CHROMATE

ICSC: 0811

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance YELLOW CRYSTALLINE POWDER. Physical dangers Chemical dangers Decomposes on heating above 440°C . The substance is a strong oxidant. It reacts violently with reducing agents and organic compounds.	Formula: ZnCrO₄ Molecular mass: 181.4 Melting point: 316°C Density: 3.4 g/cm³ Solubility in water: none

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW CRYSTALLINE POWDER.

Physical dangers

Chemical dangers
Decomposes on heating above 440°C . The substance is a strong oxidant. It reacts violently with reducing agents and organic compounds.

Formula: ZnCrO₄
Molecular mass: 181.4
Melting point: 316°C
Density: 3.4 g/cm³
Solubility in water: none

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of dust and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. Effects of long-term or repeated exposure The substance may have effects on the blood, bone marrow, central nervous system, peripheral nervous system and kidneys. Repeated or prolonged inhalation may cause nasal ulceration. This may result in perforation of the nasal septum. Repeated or prolonged contact may cause skin sensitization. This substance is carcinogenic to humans. May cause toxicity to human reproduction or development.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of dust and by ingestion.

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of long-term or repeated exposure
The substance may have effects on the blood, bone marrow, central nervous system, peripheral nervous system and kidneys. Repeated or prolonged inhalation may cause nasal ulceration. This may result in perforation of the nasal septum. Repeated or prolonged contact may cause skin sensitization. This substance is carcinogenic to humans. May cause toxicity to human reproduction or development.

OCCUPATIONAL EXPOSURE LIMITS
TLV: (as Cr(VI), inhalable fraction): 0.0002 mg/m³, as TWA; 0.0005 mg/m³ as STEL; A1 (confirmed human carcinogen); (skin). EU-OEL: (as Cr): 0.005 mg/m³ as TWA; (see Notes). MAK: skin absorption (H); sensitization of skin (SH); carcinogen category: 1; germ cell mutagen group: 2

ENVIRONMENT
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur along the food chain. It is strongly advised not to let the chemical enter into the environment.

NOTES
NEVER use a domestic-type vacuum cleaner to vacuum the substance, only use specialist equipment. Depending on the degree of exposure, periodic medical examination is suggested. Do NOT take working clothes home. EU-OEL limit value 0.010 mg/m³ until 17 January 2025. Limit value: 0.025 mg/m³ for welding or plasma cutting processes or similar work processes that generate fume until 17 January 2025.

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 45-22-43-50/53; S: 53-45-60-61; Note: A, E

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    See Also:
       Toxicological Abbreviations