chromiumzincoxide(zrcro4)

Name	Zinc chromate
Synonyms	ci77955 c.i.77955 C.I. 77955 Zinc chromate buttercupyellow basiczincchromate chromicacid,zincsalt chromiumzincoxide(zrcro4) zinc dioxido(dioxo)chromium
CAS	13530-65-9
EINECS	236-878-9
InChI	InChI=1/Cr.4O.Zn/q;;;2*-1;+2/rCrO4.Zn/c2-1(3,4)5;/q-2;+2

Molecular Formula	CrH2O4.Zn
Molar Mass	181.38
Density	3,4 g/cm3
Melting Point	316 °C
Water Solubility	Insoluble in water.
Exposure Limit	ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)OSHA: Ceiling 0.1 mg/m3NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3
Storage Condition	Room Temprature
MDL	MFCD00036281
Physical and Chemical Properties	Lemon yellow or light yellow powder. Slightly soluble in water, its solubility is 2.6g/L. It has excellent corrosion resistance. Has a bright lemon yellow and good pigment properties.

Risk Codes	R8 - Contact with combustible material may cause fire R43 - May cause sensitization by skin contact R49 - May cause cancer by inhalation R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description	S17 - Keep away from combustible material. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S53 - Avoid exposure - obtain special instructions before use.
UN IDs	3087
TSCA	Yes
Hazard Class	9
Packing Group	III
Toxicity	LDLo intravenous in mouse: 30mg/kg

EPA chemical information	Information provided by: ofmpub.epa.gov (external link)
use	is mainly used to make zinc chrome yellow antirust primer and other coatings (No. 1, No. 2 and No. 3), and to make stationery (No. 4).
production method	potassium dichromate method zinc oxide is added into a tank filled with water, stirred for 4 hours, sieved, diluted with water into suspension, added into a reactor, added with potassium dichromate solution and dilute hydrochloric acid, stirred for 20 hours, rinsed with water, filtered, dried and crushed to obtain a finished basic zinc chromate product. Its 4ZnO 2K2Cr2O7 2HCl 2H2O → this product 2KCl
toxic substance data	information provided by: pubchem.ncbi.nlm.nih.gov (external link)

Last Update：2024-04-10 22:29:15

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chromiumzincoxide(zrcro4)

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